MASTER
LOBE PROFILE
CATALOG
COMPCAMS.COM
1.800.999.0853
TABLE OF CONTENTS
TABLE OF CONTENTS
HOW TO ORDER
Selecting A Core...........................................2
Selecting Lobes............................................2
Choosing Lobe Separation Angle...................2
Determining Part Number/Grind Number And
Ordering.......................................................3
Roller Cam Lobe Suffix Codes.......................3
Core Listings Non-Standard Journal Size......3
Special Services...........................................4
Core Listing..................................................5
HYDRAULIC FLAT TAPPET
High Energy .............................................11
Magnum.....................................................11
Dual Energy™.............................................12
Thumpr™....................................................12
New Nostalgia Plus™..................................13
Race...........................................................13
Xtreme Energy™.........................................14
Xtreme Energy XFI™....................................15
Purple Plus.................................................15
Xtreme Mopar.............................................16
Xtreme 4x4.................................................16
MPM Stocker..............................................16
CRL Stocker................................................17
USI USX UPI UPX Stocker............................17
™
HYDRAULIC ROLLER
High Energy™ & Magnum
Low & High Lift...........................................18
Tri Power Xtreme™......................................19
Thumpr™....................................................20
QND...........................................................20
SLW............................................................21
Xtreme Energy™.........................................21
Xtreme 4x4.................................................22
Xtreme Energy XFI™....................................23
QXI.............................................................24
QXX............................................................25
QNI.............................................................26
QNX............................................................27
Xtreme Marine™.........................................27
Xtreme Marine™ − High Lift........................28
HUC............................................................28
Xtreme RPM for LS1...................................29
Xtreme RPR................................................30
Xtreme Energy™ XE-R for LS1.....................30
Xtreme Energy™ LSL for LS1.......................31
Xtreme Energy™ LSG for LS2......................32
Xtreme Energy™ LXL for LS1.......................33
Xtreme Energy™ LSK for LS1......................34
Xtreme Energy™ VVI....................................34
LSN & LSD for DOD....................................35
EHI EHX......................................................36
DHI DHX.....................................................37
DTL............................................................38
Cheater HR Lift Rule Competition................38
Mustang R Lift Rule Competition.................39
ESI ESX Stocker..........................................40
DSI Stocker................................................41
CE Stocker..................................................41
CZK............................................................42
DSK............................................................42
FSHR Stocker.............................................42
Xtreme Energy™ Harley...............................43
SOLID FLAT TAPPET
High Energy™ & Magnum............................44
New Nostalgia Plus™..................................44
Xtreme Energy™.........................................44
Thumpr......................................................45
High Torque................................................45
High RPM...................................................45
Hi-Tech™....................................................46
Tight Lash..................................................46
High RPM II.................................................47
XTQ............................................................47
XTX............................................................48
JF .330" Lift...............................................48
HF & JF Lift Rule.........................................49
JF...............................................................49
Max Area (MA)............................................50
Max Area (MA) Lift Rule..............................50
USI USX UPI UPX Stocker Flat.....................53
MH.............................................................54
GRI.............................................................54
MEM...........................................................55
MHF...........................................................55
FL & SQ......................................................56
High RPM Dash 12......................................56
Dash 13......................................................57
F3 Exhaust.................................................57
D3C............................................................58
XX..............................................................58
High Rocker Ratio.......................................59
High Rocker Ratio II....................................59
N................................................................60
Oval +........................................................60
FE .875".....................................................61
TDLC..........................................................61
T1N − Very High RPM .875" Flat.................61
TCT − High Ratio .875" Flat........................62
NRX............................................................62
Dir 2.3 Ratio Conversions − .875" Flat........62
BB GG .875" Plate......................................63
TDP Flat Plate.............................................63
TDP 2 Flat Plate..........................................63
TDP Flat Plate − Lower Lobe Lift................63
HY Flat Plate...............................................64
Chrysler Special..........................................64
MP.............................................................64
MM.............................................................65
SOLID ROLLER
A=Base for STD Journal
High Energy™ Street...................................66
Xtreme Energy™ Street...............................66
Xtreme Energy™ Duramax Street................67
Base Design...............................................68
Hi-Tech™....................................................69
Hi-Tech™ .420" Exhaust.............................69
Hi-Tech™ .420"...........................................70
Hi-Tech™ .440" Intake................................70
High Torque .420" Exhaust.........................71
High Torque .460".......................................71
High Ratio − High RPM Super Stock...........71
NC..............................................................72
NSC............................................................72
RZ..............................................................73
RZ Low Lift.................................................73
AS Endurance.............................................74
SRI SRX High Ratio.....................................74
B=Base for STD Journal
RT..............................................................75
CR..............................................................76
CR Lift Rule................................................77
RX..............................................................77
TC..............................................................78
ZT...............................................................78
ZS..............................................................79
TD, TJ & TJS...............................................79
TS..............................................................80
High Ratio Restricted..................................81
RC..............................................................81
RP..............................................................82
SP..............................................................82
High Torque .406".......................................83
High Torque .440".......................................83
HXL............................................................84
QRI.............................................................85
HXX............................................................85
HXX HL.......................................................86
HXX LL.......................................................86
IXL..............................................................86
TK..............................................................87
TK Lift Rule.................................................88
SPL............................................................88
VK Lift Rule.................................................88
CSZ............................................................89
C=Large Journal Multi-Use
DSZ............................................................90
TK .455".....................................................90
TK HL & SP-TK High Lift..............................91
DIX.............................................................91
UB..............................................................92
UBL............................................................92
COMPCAMS.COM
CAM HELP® 1.800.999.0853
D=Drag Base Intake
CE Drag Intake..........................................100
High RPM Intake.......................................101
Dash 31....................................................101
Mountain Motor........................................101
Rev Drag Intake........................................102
RX Drag Intake.........................................102
RX Pro Drag Intake...................................103
E=Drag Base Exhaust
High RPM Exhaust....................................104
JX Drag Exhaust.......................................104
XCX Drag Exhaust.....................................105
XJX Drag Exhaust.....................................106
XJS Drag Exhaust.....................................107
Pro Mod Exhaust.......................................107
F= Large Journal Intake
VOI Pro Drag.............................................107
DR Pro Drag Intake...................................108
RS Drag Intake ........................................108
PQ Pro Stock Drag....................................108
TS Pro......................................................109
TS+ Pro....................................................109
TSP Pro....................................................109
DRZ Pro Stock Drag..................................110
DQS Pro Stock Drag..................................110
DRS Drag.................................................110
DRD Pro Stock Drag..................................111
DRM Pro Stock Drag.................................111
DRI Pro Stock Drag...................................112
DZI Pro Stock Drag...................................113
DRP Pro Stock Drag..................................113
DKL Pro Drag............................................113
HDZ Pro Stock Drag..................................113
PRI PLI Pro Stock Drag..............................114
PZI Pro Stock Drag....................................115
PEZ PFZ PZZ Pro Stock.............................116
SPH & SPI Pro Stock Drag.........................117
PNI Pro Stock Drag...................................117
DKN Pro Stock Drag..................................117
FPI Pro Stock Drag....................................118
FOS Pro Stock Drag..................................118
FSL Pro Stock Drag...................................118
FDZ Pro Stock Drag..................................118
FGZ Pro Stock Drag..................................119
FPJ Pro Stock Drag...................................119
DJP .........................................................119
PVI Pro Stock Drag....................................119
PSB PBM PBL Pro Mod Drag.....................120
PSA Pro Stock Drag..................................120
PMZ Pro Mod Drag...................................120
PIC Pro Stock Drag...................................121
G= Large Journal Exhaust
DRX Drag Exhaust....................................121
XK Pro Stock Drag....................................121
XKL Pro Stock Drag..................................122
XK .635" Pro Stock Drag Exhaust.............122
XKH Exhaust.............................................122
XM Pro Exhaust........................................123
ZLX Pro Stock Drag Exhaust.....................123
NX Pro Stock Drag Exhaust.......................123
NXX .........................................................124
VOX Pro Drag............................................124
TXS Pro....................................................125
PRX PLX Pro Stock Drag...........................126
PVX Pro Stock Drag..................................126
PRZ Pro Stock Drag..................................126
PVX Pro Stock Drag..................................127
SPX Pro Stock Drag..................................127
XCM Pro Stock Drag.................................127
XNR..........................................................127
SXZ Pro Stock Drag..................................128
XRX Pro Stock Drag..................................128
PVS Pro Stock Drag Exhaust.....................128
ZZX Pro Stock Drag Exhaust.....................128
PZN PZJ PYJ Pro Stock Drag.....................129
DXP Pro Stock Drag..................................129
XCH Pro Stock Drag..................................129
TXJ Pro Stock Drag...................................130
PNX Pro Stock Drag..................................130
XMZ XJZ Pro Mod Drag.............................130
PXC Pro Stock Drag..................................131
H=Top Fuel & ALK
UDR Fuel & ALC Intake..............................131
FDR Fuel & ALC Intake..............................131
FCX Fuel & ALC Exhaust............................132
EF Fuel & ALC Intake................................132
FLI Fuel Intake..........................................132
FLX Fuel Exhaust......................................132
NFV Top Fuel Pro Drag (2012/2013)..........133
Chrysler Special Race...............................133
OVERHEAD CAM (PIVOTING FOLLOWER)
Ford Modular Xtreme Energy™
4.6 & 5.4L − SOHC or DOHC.....................134
Modular Stocker.......................................135
MHS Modular Stocker...............................136
MH 2V & 4V Modular Race........................136
MS 2V & 4V Modular Race........................136
Ford Modular Xtreme Energy™
4.6 & 5.4L − 3V........................................137
Ford Modular RSS Race − 3V....................138
Ford Coyote NSRI & NSRX Street − 4V......138
Ford Coyote CY-R......................................138
Ford Coyote CRI & CRX Street − 4V...........139
Ford 2000-2300 OHC Street.....................139
Ford 2000-2300 OHC Race.......................140
Ford 2000-2300 OHC
Race Roller Follower.................................140
Ford 2300 − FP Roller..............................141
GM Ecotech − Xtreme Energy™
Hydraulic Roller OHC.................................142
Mitsubishi 4G63 − Xtreme Energy™
Hydraulic Roller OHC.................................143
Nissan L16, 18, 20B.................................143
Toyota 20R-22RE......................................143
SOH OHC Rollers for Ford 427 SOHC.........144
VM OHC Rollers for Ford 427 SOHC...........144
OVERHEAD CAMS (DIRECT ACTING)
VW or Direct 1" Tappet.............................145
OHC − Multipurpose Bucket.....................145
Quad 4 − Bucket......................................145
OHZ − Street/Strip Bucket........................145
OHRX − High RPM Bucket.........................146
OHRVX − High Lift....................................146
XCOH Exhaust High Lift.............................146
OHRXA − Street Intake..............................146
OHRXA − Street Exhaust...........................146
PCI Intake − Limited RPM
OHC 33mm Bucket...................................147
PCX Exhaust − Limited RPM
OHC 33mm Bucket...................................147
PDI Intake − Limited RPM
OHC 33mm Bucket...................................147
PDX Exhaust − Limited RPM
OHC 31.5 mm Bucket...............................147
OHV Intake 38-40mm Bucket...................148
XCO Exhaust 35-40mm Bucket.................148
XCO Intake 38-40mm Bucket...................148
Thumpr™ Flathead Ford
Direct Solid 1" Tappet (CCW Rotation).......148
FC Solids..................................................149
TABLE OF CONTENTS
UBA............................................................93
UBLL..........................................................93
GCI & GCX..................................................93
ULG UVX High Ratio....................................94
LDP XDL Endurance....................................94
HPX............................................................95
DLB............................................................95
DNW...........................................................96
DSP............................................................96
DSS............................................................97
DSL............................................................97
DTT............................................................98
DPC & DPD.................................................98
HOI & HOX..................................................99
XDP............................................................99
UL............................................................100
KZU..........................................................100
TABLE OF CONTENTS
HOW TO ORDER
HOW TO ORDER
4
COMP Cams® leads the industry in camshaft lobe offerings. With thousands of active lobes in the COMP® library, the
combinations are infinite for any given engine. That means that you can have a cam ground to your specific needs, and
you have the broadest selection of lobes available anywhere.
CHOOSING A CAM
FOR YOUR SPECIFIC
APPLICATION IS A
FOUR-STEP PROCESS:
1. Select a core.
2. Select the lobes.
3. Select a lobe separation angle.
4. Determine the part number and grind number, and order the cam.
1. SELECTING A CORE
2. SELECTING LOBES
Within the parameter of core applications, we have fifteen cores that cover
many engine applications. They are designated as follows:
The lobes are listed on pages 8-61 and represent the most current library
of lobes offered by COMP Cams®. They are arranged in groups, each of
which is unique in its application. Along with each group is a description of
each type, which is intended to help clarify each family of lobes so that you
may accurately select lobes for your application.
-0 Steel Billet Round Lobe
-5 Flat Tappet (Either Hydraulic or Solid Lifter)
-5RR Reverse Rotation Flat Tappet
-7 Special Flat Tappet
-8Street Roller (Either Hydraulic or Solid Roller)
Special Material – Bronze Distributor Gear
Not Required on Most Applications
-9 Steel Billet Roller
-9L OHC Roller Left
-9R OHC Roller Right
-9W Welded Steel Billet Flat Tappet
-10 Steel Billet Roller
-11 Steel Billet Roller
-12 Steel Billet Roller
-14 4/7 Swap Steel Billet Roller
-16 Steel Flat Tappet
-47 4/7 Swap Cast Flat Tappet
Special Note: The -0 core is a round lobe core that is not
heat-treated. These cores must be roughed and then
heat-treated before finished lobe grinding takes place.
The complete core list follows on pages 5-10. The list is separated into the
different cam core types. The part number in front of each core is used in
ordering a custom ground cam for a particular engine type. It consists of
a two-digit prefix designating the engine type, followed by a dash (-) and
three consecutive zeros. The zeros indicate a custom ground cam. Next are
a dash and number from the core designations previously listed.
Example:
Engine Prefix
Part #
12-
000
Core Type
-9
The number 12- indicates Small Block Chevy (found on
the core listing pages 5-10).
The 000 indicates a custom grind.
The -9 indicates steel billet roller core.
Some lobes specifically designated to be intake or exhaust lobes do not
necessarily have to be run on the valve for which they were designed. If an
exhaust lobe has the desired spec for intake (or vise versa) they may be
used in that manner.
Keep in mind while viewing the listings that certain flat tappet lobes are
designed to be used only with correct diameter lifters.
3. CHOOSING LOBE SEPARATION ANGLE
Lobe separation angles (the angle in cam degrees between the intake and
exhaust lobe are also referred to as "lobe centers") are very engine combination dependent. In general, a tighter separation (ex. 104°-106°) results in
a "peakier" torque curve more suited to stick-shift cars with multiple gear
ratios to change between. Wider lobe separation (ex. 110°-112°) results in
a broader, flatter torque curve that is more suited to automatic transmission
cars with fewer gears from which to choose. Therefore, engines have to be
more powerful over a broader RPM range. Also, as lobes get larger at .050"
duration (275° and up), it is necessary to begin widening separation angles
to lessen the amount of overlap that accumulates from the larger lobes.
One final note about lobe separation angles − the cam cores that are available for each application are designed for nominal, standard lobe separation
angles. Straying from this nominal angle too far in one direction or another
can result in the heat-treated surface of the core being ground through to
the soft material underneath. Soft lobes will fail in an engine if allowed to run
for very long. Whether or not the heat-treated surface is ground through also
is obviously dependent on the lobe being ground on the core.
The bottom line is that not all grinds can go on every core that is available.
More popular engines, like the Small Block Chevy, have a variety of cores
available with varying lobe separation angles that can accommodate almost any grind. Less popular applications, like the Flathead Ford V8, only
have one core available. Therefore, they are somewhat limited in terms of
what grind will fit on the single existing core.
COMPCAMS.COM
CAM HELP® 1.800.999.0853
HOW TO ORDER
With the part number determined in the core selection process, the grind
number is the final step prior to ordering the cam. This process is simple
and is accomplished by picking up the "lobe number" that appears in the
left column of the lobe selection chart.
For example, if lobe 5201 is selected as the intake and 5203 is selected as
the exhaust, with a 106° lobe separation angle and this configuration is to
be ground on a Small Block Chevy core, the full number for ordering that
cam would be:
The intake lobe will be first and the exhaust lobe will be second, followed
by the lobe separation angle.
ROLLER CAM LOBE SUFFIX CODES
CORE LISTINGS
NON-STANDARD JOURNAL SIZE
When it comes to ordering a roller cam, there are two things that need to
be considered: journal diameter and roller lifter wheel diameter. Journal
size and wheel diameter are very important in making sure the lobe is
performing to the specifications you require.
For example, if you were selecting lobes for a custom grind Big Block Chevrolet cam then you would need to make sure the lobes were designed for a
Big Block Chevrolet journal diameter (1.948"). If Small Block Chevrolet lobes
were used instead, the specifications of the cam would be inaccurate. The
journal diameter of a Small Block Chevrolet is 1.868". The lobes on the big
block cam would "grow" approximately 2° if ground using small block lobe
designs. The same principle applies to various roller lifter wheel diameters.
COMP Cams® has done the math for you, so all you need to do is make
sure you order the lobes with the correct suffixes to signify the proper
journal diameter and roller lifter wheel diameter.
MASTER SUFFIX CODES FOR VARIOUS
ROLLER CAM JOURNAL DIAMETERS:
T
N
S
B
F
R
M
1.750" (Very Small-V6 Buick, etc.)
0.900" Base Circle Diameter (Any Journal Size)
1.868" (Small Block Chevrolet)
1.948" or 1.968" (Big Block Chevrolet or 50mm)
2.036", 2.051" or 2.081"
(Small Block Ford and Cleveland)
2.1653" or 2.1234" (55mm, LS1 or Big Block Ford)
2.3622" (60mm)
MASTER SUFFIX CODES FOR
VARIOUS ROLLER LIFTER WHEEL DIAMETERS:
E
0.812" (from 0.792" to 0.832")
G
0.850" (from 0.830" to 0.870")
H
0.950" (from 0.930" to 0.970")
U
2.000" (1.000" Radius Sliding Tappet)
No SuffixStandard (from 0.750" to 0.790")
EXAMPLES:
If you wanted to order a cam using lobe #4314 on the intake and lobe
#4074 on the exhaust for a Big Block Chevy cam with standard journals,
standard .750" lifter wheel diameter and a 110° lobe separation, your
grind number would be: CB 4314B/4074B R110
However, if you wanted to order a cam with the same specs for a Big Block
Chevy but with 55mm journals and a .812" lifter wheel diameter, your grind
number would be: CB 4314RE/4074RE R110
Part #:
12-000-5 Grind #:
CS 5201/5203-H106
CHEVROLET SMALL BLOCK
1.868"
Stock Chevy Bearing Size
1.875"
1.948"
1.968" or 50mm
Stock Block with Roller Bearings
Stock Size Rocket Block or Big Block
Rocket Block with Roller Bearing
2.165" or 55mm
Large Roller Bearing
CHEVROLET BIG BLOCK
1.948"
Stock Chevy Bearing Size
1.968"
2.165" or 55mm
Stock Block with Roller Bearings
Pro Stock Roller Bearing
(Same Size as Big Block Ford)
Large Roller Bearing "Jesel Core"
2.362" or 60mm
Large Roller Bearing
2.124"
FORD SMALL BLOCK, 351 WINDSOR & SVO BLOCK
Journal #1 – 2.080"
Stock Ford Bearing Size
Journal #2 – 2.065"
Journal #3 – 2.050"
Journal #4 – 2.035"
Journal #5 – 2.020"
Journal #1, 2, 3 & 4
– 2.165"
Stock Ford Bearing Size
Stock Ford Bearing Size
Stock Ford Bearing Size
Stock Ford Bearing Size
Roller Bearing – "Large Roller Bearing" or
"Roush Roller Bearing"
Roller Bearing – "Large Roller Bearing" or
"Roush Roller Bearing"
Roller Bearing – "Ford Motorsports" or "SVO
Design Roller Bearing"
Roller Bearing – New Design Ford SVO
Journal #5 – 1.968"
All Journals – 2.051"
All Journals – 2.081"
CHRYSLER SMALL BLOCK
Journal #1 – 1.998"
Stock Chrysler Bearing Size
Journal #2 – 1.982"
Journal #3 – 1.967"
Journal #4 – 1.951"
Journal #5 – 1.561"
Journal #1, 2, 3, & 4
– 1.969"
Journal #5 – 1.575"
All Journals – 1.968"
Stock Chrysler Bearing Size
Stock Chrysler Bearing Size
Stock Chrysler Bearing Size
Stock Chrysler Bearing Size
2.362" or 60mm
Joey Arrington Style Roller Bearing
Joey Arrington Style Roller Bearing
Mopar Performance Roller Bearing
Roller Bearing
HOW TO ORDER
4. DETERMINING A PART NUMBER/GRIND
NUMBER AND ORDERING
SPECIAL SERVICES
SPECIAL SERVICES
A partial listing of the most common high end treatments and special processes you can order for your COMP Cams®
camshaft. Additional services are available; contact us for any special needs.
CAMSHAFT SURFACE PREPARATIONS
SPECIAL OPERATIONS
NITRIDING PART #1-111-1
REPLACEMENT OF THE CAMSHAFT DOWEL PIN
PART #1-120-1
This is the most effective process for extending the life of a high performance flat tappet camshaft. Nitriding increases the hardness of the camshaft surface metal by physically injecting nitrogen "needles" into the surface of the lobes and journals to increase their resistance to wear.
CAMSHAFT MICROPOLISHING PART #1-114-1
This procedure removes microscopic imperfections in the surface of the
metal. Micropolishing can further increase the durability of the camshaft
and can be performed to only the camshaft lobes or all wear surfaces.
XTREME SURFACE FINISH ENHANCEMENT
PART #1-137-1
Our highest-quality finishing process involving considerably more polishing than any other procedure. This is most commonly used in steel-onsteel contact valve train situations, such as high end circle track flat tappet camshafts where billet materials have repeated contact in extremely
high RPM environments.
PRECISION CAMSHAFT MEASUREMENT
BASIC CAMSHAFT PROFILING PART #1-126-1
Performed on two lobes of any camshaft, the component is measured to
determine its lift, duration and lobe centerline specifications.
ADCOLE CAMSHAFT PROFILING PART #1-125-1
Our highest precision camshaft measuring device, the Adcole, checks all
16 camshaft lobes to determine that the cam meets all specifications
requested by the customer. The Adcole measures camshaft specifications
to 0.00001 of an inch.
This is a process which repairs camshafts when the current dowel pin has
either been sheared off or damaged in some manner. The old dowel pin (or
remaining part) is removed by machining and a new dowel pin is inserted.
INSTALLATION OF DUAL DOWEL PINS
PART #1-121-1
For certain applications, dual dowel pins can be installed to further ensure
that the camshaft and timing gear connection are secure. This is most commonly done with early model Ford V8s and classic Chrysler Hemi engines.
The timing gear can also be machined to adapt to this new configuration.
DRILLING & TAPPING CAMSHAFT NOSE
PART #1-136-1
A process performed on Viper camshafts, the nose of the camshaft is drilled
and then tapped to convert from a single timing gear bolt-up to a three-bolt
aftermarket timing chain set. This allows for a wider selection of timing sets.
MACHINING A REAR CAMSHAFT JOURNAL
GROOVE PART #1-119-1
A process commonly performed on 1965-66 Big Block 396c.i. Chevrolet
engines, which features oiling systems that require a groove be cut into
the rear journal of the camshaft. This was a two-year only condition, not
required in all 1967 and newer Big Block Chevrolet engines.
MACHINING OF THE REAR PUMP DRIVE
PART #1-116-1
Allows sprint car-style engines to run the fuel pump from the rear of the
camshaft rather than traditional placements.
SIDE CUTTING OF CAMSHAFT LOBES
PART #1-127-1
A process often requested that helps to keep the lifters from making contact
with adjacent lobes when the engine’s lifter bores have been enlarged.
SLEEVING OF THE CAMSHAFT JOURNAL
PART #1-132-1
Most popular with Ford Windsor engine roller bearing camshaft applications, a sleeve is placed around the standard rear journal to increase the
size of the journal, making it compatible with rear roller bearing usage.
FUEL PUMP LOBE REGRINDING PART #9-999-1
A refinishing process used to clean up a fuel pump lobe which may have
been damaged or is showing excessive wear.
COMPCAMS.COM
CAM HELP® 1.800.999.0853
CORE DESCRIPTION
FLAT TAPPET CAM CORES (HYDRAULIC OR SOLID)
10-000-5
AMC
68-000-5
AMC
114-000-5
AMC
63-000-5
BUICK
69-000-5
BUICK
75-000-5
BUICK
90-000-5
BUICK
91-000-5
BUICK
92-000-5
BUICK
96-000-5
BUICK
94-000-5
CADILLAC
11-000-5
CHEVROLET
11-000-5RR
CHEVROLET
12-000-5A
CHEVROLET
12-000-5RR
CHEVROLET
13-000-5
CHEVROLET
15-000-5
CHEVROLET
16-000-5
CHEVROLET
18-000-5
CHEVROLET
48-000-5
CHEVROLET
60-000-5
CHEVROLET
61-000-5
CHEVROLET
62-000-5
CHEVROLET
77-000-5
CHEVROLET
89-000-5
CHEVROLET
148-000-5
CHEVROLET
20-000-5A
CHRYSLER
21-000-5
CHRYSLER
23-000-5
CHRYSLER
24-000-5
CHRYSLER
26-000-5
CHRYSLER
64-000-5
CHRYSLER
163-000-5
CHRYSLER
31-000-5
FORD
32-000-5
FORD
33-000-5
FORD
34-000-5
FORD
35-000-5
FORD
35-000-5RR
FORD
36-000-5
FORD
37-000-5
FORD
38-000-5
FORD
41-000-7
FORD
44-000-5
FORD
65-000-5
FORD
66-000-5
FORD
104-000-5
FORD
81-000-5
HOLDEN
82-000-5
HOLDEN
83-000-5
INTERNATIONAL
42-000-5
OLDSMOBILE
103-000-5
OLDSMOBILE
A. Different journal sizes available
ENGINE
290-401 V8 (1966-91)
199-258 L6 (1964-95)
2.5L
198-225 V6 Odd Fire (1962-67)
3.0L-4.1L V6 (1978-87)
Buick V6
215 Aluminum V8
364-401-425 V8
350 V8 (1968-80)
400-430-455 V8 (1967-76)
368-425-472-500 V8
396-454 V8 (1967-96)
396-454 V8 Reverse Rotation (Marine Applications)
262-400 V8 (1957-98)
262-400 V8 Reverse Rotation (Marine Applications)
Corvair (1964-69)
200-229 V6 (1978-84)
2.8L, 3.1L and 3.4L (1980-95)
4.3L V6 (1983-97)
348-409 V8 (1958-65)
235 L6 Blue Flame (1952-62)
195-250 L6 (1962-85)
292 L6 (1963-90)
Chevette 1400cc (1976-77)/1600cc (1976-87)
Vega L4 140c.i. (1971-77)
1994-01 2.2L Chevy 4 Cyl.
273-360 V8 (1968-99)
383-440 V8 Single-Bolt (1958-78)
383-440 V8 Three-Bolt (1958-78)
426 Hemi V8 (1966-71)
392 Hemi V8
225 L6 (1960-85)
1999-2001 Chrysler/Jeep 4.0 6 Cyl.
289-302 V8 (1962-99)
351C, 351M-400M V8 (1970-82)
352-428 V8 FE (1963-95)
429-460 V8 (1968-99)
302 HO (1985-95), 351W V8 (1969-95)
351W Reverse Rotation (Marine Applications)
2600, 2800 V6
272-292-312V8 Y-Block (1955-62)
2800 V6 (1983-85)
Flathead V8 (1949-53)
3.8L (1984-87) Only
144-250 (1960-83)
240-300 L6 (1965-95)
V8 "FE" (1958-62)
6 Cyl. Flat Tappet 186
252-308 V8 (1970-88)
304-392 V8 (1970-78)
260-455 V8 91967-84)
V8 45° Bank Angle (1964-68)
Continued on page 6
CAM CORES
CORE #
CAM CORES
CAM CORES
CAM CORES
CORE #
CORE DESCRIPTION
FLAT TAPPET CAM CORES (HYDRAULIC OR SOLID) continued
14-000-5
PONTIAC
51-000-5
PONTIAC
52-000-5
PONTIAC
73-000-5
VOLKSWAGEN
SPECIAL FLAT TAPPET CAM CORES
12-000-7A
CHEVROLET
20-000-7A
CHRYSLER
21-000-7
CHRYSLER
32-000-7
FORD
35-000-7A
FORD
39-000-7
FORD
41-000-7
FORD
ENGINE
151 L4 (1977-78)
265-455 V8 (1955-81)
151 L4 Iron Duke (1978-89)
1200, 1600 4 Cyl.
262-400 V8 Special Pro Core
"R" Block W/ 48° Lifter Bore
383-440 V8 Single-Bolt (1958-78)
351C, 351M-400M V8 (1970-82)
SVO V8
SVO V6 Odd Fire
Flathead V8
STREET ROLLER CAM CORES (HYDRAULIC OR SOLID ROLLER) (Special Material − Works W/ Most Std Dist. Gears)
69-000-8
BUICK
3.0L-4.1L V6 (1978-87)
01-000-8
CHEVROLET
454-502 Generation VI Big Block
07-000-8
CHEVROLET
LT1 Engine (1992-98)
08-000-8
CHEVROLET
262-400 V8 W/ Roller Cam (1987-98)
09-000-8
CHEVROLET
4.3L V6 W/ Roller Cam (1987-98)
11-000-8
CHEVROLET
396-454 V8 (1967-96)
12-000-8
CHEVROLET
262-400 V8 (1957-98)
18-000-8
CHEVROLET
4.3L V6 (1985-99)
56-000-8
CHEVROLET
4.3L V6 (1992-99) W/ Balance Shaft
148-000-8
CHEVROLET
1994-01 2.2L Chevy 4CYL
97-000-10
CHRYSLER
V10 Viper
98-000-10
CHRYSLER
V10 Truck
111-000-10
CHRYSLER
2003 & Up Viper Three-Bolt
112-000-11
CHRYSLER
5.7 & 6.1L Hemi V8
149-000-8
CHRYSLER
238 CID 3.9L V6
31-000-8
FORD
289-302 V8 (1962-99)
32-000-8
FORD
351C, 351M-400M V8 (1970-82)
35-000-8
FORD
302 HO (1985-95), 351W V8 (1969-99)
RACE ROLLER CAM CORES − STEEL BILLET
10-000-9
AMC
10-000-13
AMC
93-000-9
BUICK
94-000-10
CADILAAC
02-000-9
CHEVROLET
08-000-9
CHEVROLET
07-000-9
CHEVROLET
11-000-9A
CHEVROLET
01-000-9
CHEVROLET
12-000-9A
CHEVROLET
03-000-9A
CHEVROLET
04-000-10A
CHEVROLET
14-000-9
CHEVROLET
15-000-9
CHEVROLET
17-000-9
CHEVROLET
19-000-9
CHEVROLET
28-000-9
CHEVROLET
A. Different journal sizes available
390-401 V8 (1966-79)
390-401 V8 (1966-79)
Stage II Even Fire
V8
200-229 V6 Odd Fire W/ Splayed Valve Head
262-400 V8 (1987-98)
LT1 Engine (1992-98)
396-454 V8 (1967-96)
454-502 Generation VI Big Block
262-400 V8 (1957-98)
Standard Chevrolet Block W/ SB2 Heads
SB2 Block W/ SB2 Heads
153 L4 (1962-1972)
220-229 V6 Even Fire
V6 Odd Fire Race
262-400 V8 W/ Splayed Valve or Buick Head
Gaerte L4
Continued on page 7
COMPCAMS.COM
CAM HELP® 1.800.999.0853
CORE DESCRIPTION
RACE ROLLER CAM CORES − STEEL BILLET continued
29-000-9
CHEVROLET
48-000-9
CHEVROLET
76-000-9
GM
54-000-11
GM LS
146-000-13
GM LS
156-000-13
GM LS
189-000-13
GM LS
224-000-13
GM LS
624-000-15
GM LS
646-000-13
GM LS
656-000-13
GM LS
689-000-13
GM LS
46-000-9
GM
117-000-9
GM
109-000-10
GM
116-000-12
GM
132-000-12
GM
144-000-14
GM
20-000-9A
CHRYSLER
23-000-9
CHRYSLER
24-000-9A
CHRYSLER
26-000-9
CHRYSLER
115-000-10
CHRYSLER
195-000-12
CHRYSLER
31-000-9
FORD
32-000-9
FORD
33-000-9
FORD
34-000-9
FORD
35-000-9A
FORD
39-000-9
FORD
40-000-9
FORD
49-000-8
FORD
118-000-9
FORD
82-000-9
HOLDEN
282-000-9
HOLDEN
42-000-9
OLDSMOBILE
51-000-9
PONTIAC
52-000-9
PONTIAC
120-000-12
STERLING
OHC DIRECT ACTING CAM CORES (HYDRAULIC OR SOLID)
10800E
FORD
10800I
FORD
121-000-8E
FORD
121-000-8I
FORD
53-000-5I
OLDSMOBILE
53-000-5E
OLDSMOBILE
74-000-5
TOYOTA
168-000-15E
TOYOTA
168-000-15I
TOYOTA
85-000-5
VOLKSWAGEN
A. Different journal sizes available
ENGINE
Gaerte L4 W/ Splayed Valve Head
348-409 V8 (1958-65)
3800/3.8L V6 (1996-Present)
LS1 Engine (1997-Present)
Chevy Gen IV, LS2
Gen IV LS2 W/ Cam Phaser
LY6 Gen IV
2014 GM Gen V LT1
2014 GM LT1 AFM
Chevy Gen IV, LS2 AFM
Gen IV LS2 W/ Cam Phaser & AFM
LY6 Gen IV AFM
8.1L V8
6.5L Diesel
R99/R03
DRCE3 Pro Stock
Duramax 6.6L Diesel
R07-2 GM Race NASCAR Core
273-360 V8 (1968-99)
383-440 V8 Three-Bolt (1958-78)
426 Hemi V8 (1966-71)
392 Hemi V8
9 Bearing Hemi Pro Stock
Gen 1V Viper 8.4L
289-302 V8 (1962-95)
351C, 351M-400M V8 (1970-82)
352-428 V8 FE (1963-76)
429-460 V8 (1968-99)
302 HO (1985-95), 351W V8 (1969-99)
SVO V6 Odd Fire
SVO V6 Even Fire
4.0L V6 (1990-97)
7.3L Ford Power Stroke Diesel Core
252-308 V8 (1970-88)
Holden V8 (1986-Present)
260-455 V8 (1965-90)
265-455 V8 (1955-81)
151 L4 Iron Duke
Sterling V12
2.0L Zetec Exhaust
2.0L Zetec Intake
Ford Duratech 2.3L DOHC Exhaust
Ford Duratech 2.3L DOHC Intake
2.3 Quad 4 Intake
2.3 Quad 4 Exhaust
2TC-3TC L4 OHV 1588-1700cc (1970-82)
Toyota 2JZ-GTE DOHC
Toyota 2JZ-GTE DOHC
1457, 1788 SOHC 4 Cyl. (1974-89)
Continued on page 8
CAM CORES
CORE #
CAM CORES
CAM CORES
CAM CORES
CORE #
CORE DESCRIPTION
ENGINE
OHC SLIDING FINGER CAM CORES (HYDRAULIC OR SOLID)
57-000-9E
HONDA
57-000-9I
HONDA
59000
HONDA
105000
HONDA
70-000-0
FORD
71-000-5
FORD
72-000-5
FORD
95-000-5
MITSUBISHI
222-000-5
MITSUBISHI
58-000-9E
NISSAN
58-000-9I
NISSAN
79-000-5
NISSAN
80-000-5
NISSAN
84-000-5
NISSAN
88-000-5
NISSAN
87-000-5
TOYOTA
DOHC B16A/B18C
DOHC B16A/B18C
D16Z6 SOHC V-TEC
D16Y8 SOHC V-TEC
2000, 2300 OHC L4 (1983-87)
1600 L4 OHC (1965-85)
2000 L4 OHC (1970-77) 3-Bearing Journal
2000, 2600 L4 RWD & FWD (1979-87)
1983-1990 4CYL, C222-4
SR20-DE
SR20-DE
1600, 1800 L4 (1969-84)
6 Cyl. SOHC
2200-2800 (1970-84) Gun Drilled
NAP Z L4 (1981-89)
20R, 22R L4 (1975-89)
OHC ROLLER TAPPET CAM CORES (HYDRAULIC OR SOLID)
22-000-5
CHRYSLER
107-000-8
CHRYSLER
135-000-8E
CHRYSLER
135-000-8I
CHRYSLER
217-000-15
CHRYSLER
113-000-9I
GM
113-000-9E
GM
200-000-5E
GM
200-000-5I
GM
138-000-9L
FORD
138-000-9R
FORD
102-000-9R
FORD
102-000-9L
FORD
106-000-9LE
FORD
106-000-9LI
FORD
106-000-9RE
FORD
106-000-9RI
FORD
127-000-9L
FORD
127-000-9R
FORD
140-000-9L
FORD
140-000-9R
FORD
191-000-9LE
FORD
191-000-9LI
FORD
191-000-9RE
FORD
191-000-9RI
FORD
243-000-11LE
FORD
243-000-11LI
FORD
243-000-11RE
FORD
243-000-11RI
FORD
269-000-9L
FORD
269-000-9R
FORD
101-000-8E
MITSUBISHI
101-000-8I
MITSUBISHI
2.2L, 2.5L L4 OHC (1981-93)
Neon SOHC 2.0L (1995-01)
Neon "Y" Engine Code Exhaust
Neon "Y" Engine Code Intake
Mopar Midget, Stanton New Head (Tool Steel)
Ecotech 2.2L DOHC Intake
Ecotech 2.2L DOHC Exhaust
ECOTEC Equal Length
ECOTEC Equal Length
427 SOHC Left Hand
427 SOHC Right Hand
4.6L SOHC Right Side Cam Set
4.6L SOHC Left Side Cam Set
4.6L & 5.4L DOHC Left Exhaust
4.6L & 5.4L DOHC Left Intake
4.6L & 5.4L DOHC Right Exhaust
4.6L & 5.4L DOHC Right Intake
4.6L 3 Valve Left
4.6L 3 Valve Right
V10 DOHC LEFT
V10 DOHC RIGHT
5.0 2011-14 Coyote
5.0 2011-14 Coyote
5.0 2011-14 Coyote
5.0 2011-14 Coyote
5.0 2015 & Up Coyote
5.0 2015 & Up Coyote
5.0 2015 & Up Coyote
5.0 2015 & Up Coyote
Modular 2V, TFS Heads, Left
Modular 2V, TFS Heads, Right
Intake Cam Set for 4G63
Exhaust Cam Set for 4G63
A. Different journal sizes available
Continued on page 9
COMPCAMS.COM
CAM HELP® 1.800.999.0853
CORE DESCRIPTION
ENGINE
OHC ROLLER TAPPET CAM CORES (HYDRAULIC OR SOLID) continued
119-000-8E
MITSUBISHI
4G63 Evolution VIII Exhaust (2003 & Up)
119-000-8I
MITSUBISHI
4G63 Evolution VII Intake (2003 & Up)
145-000-8E
MITSUBISHI
2006 MIT. 2.0L EVO IX MIVEC INT
145-000-8I
MITSUBISHI
2006 MIT. 2.0L EVO IX MIVEC EXH
RACE ROLLER CAM CORES − STEEL BILLET (ROUND)
10-000-0
AMC
123-000-0
ARIAS
122-000-0
BMW
67-000-0
BUICK
92-000-0
BUICK
93-000-0
BUICK
96-000-0
BUICK
61-000-0
CHEVROLET
03-000-0
CHEVROLET
07-000-0
CHEVROLET
11-000-0
CHEVROLET
12-000-0
CHEVROLET
54-000-0
CHEVROLET
189-000-13
CHEVROLET
14-000-0
CHEVROLET
15-000-0
CHEVROLET
129-000-0
CHEVROLET
20-000-0
CHRYSLER
21-000-0
CHRYSLER
24-000-0
CHRYSLER
26-000-0
CHRYSLER
134-000-0
CHRYSLER
72-000-0
FORD
66-000-0
FORD
31-000-0
FORD
05-000-0
FORD
32-000-0
FORD
34-000-0
FORD
142-000-12
GM
30-000-0
HARLEY DAVIDSON
42-000-0
OLDSMOBILE
51-000-0
PONTIAC
52-000-0
PONTIAC
RACE ROLLER CAM CORES − SPECIAL 8620
147-000-15
GM
166-000-15
GM
172-000-15
GM
175-000-15
GM
177-000-16
GM
196-000-15
GM
209-000-15
GM
212-000-15
GM
178-000-15
GM
A. Different journal sizes available
390-401 V8 (1966-79)
Arias 10 Round
Mini Cooper
231 V6 Odd Fire (1975-77)
350 V8
BV6 Stage II
400-430-455 V8 (1967-76)
194-230-250-292-L6 (1962-84)
Standard Chevrolet Block W/ SB2 Heads
LT1 Engine (1992-98)
396-454 V8 (1967-96)
262-400 V8 (1957-98)
LS1 Engine (1997-99)
GM LY6
153 L4 (1962-72)
200-229 V6 Even Fire
3.4L V6 (2001 & Up)
273-360 V8 (1968-99)
383-440 V8 Single-Bolt (1958-78)
426 Hemi V8 (1966-71)
Donovan Block
70MM Hemi Pro Stock
2000 L4 OHC (1970-77)
240-300 L6 (1965-Present)
289-302 V8 (1962-95) and SVO V8
SVO V8 W/ Mirror Image Heads
351C, 351M-400M V8 (1970-82)
429-460 Vi (1968-99)
Holden V8 Special Spacing Round Lobe
80" Evolution
260-455 V8 (1965-90)
265-455 Vi (1955-81)
151 L4 Iron Duke
5.2 Bore Spacing GM
DRCE2 9 Bearing 4 Cyl.
CS 4500 Bore Spacing Brodix Block
BBC 5" Bore C&N Blocks
BBC 70MM 5300 Bore Spacing N Head/A.J. 45/60
SBC Mid Deck Block, Same As C183-12
SBC 4.5" Chuck Nuytten Block-Devito
BBC 5" Brodix Block
CS-LS-WP Motown SBC
Continued on page 10
CAM CORES
CORE #
CAM CORES
CAM CORES
CAM CORES
CORE #
CORE DESCRIPTION
RACE ROLLER CAM CORES − TOOL STEEL BILLET
155-000-15
ARIAS
55-000-16
CHRYSLER
157-000-16
CHRYSLER
201-000-17
CHRYSLER
217-000-15
CHRYSLER
226-000-17
CHRYSLER
04-000-16A
GM
11-000-15
GM
54-000-15
GM
224-000-15
GM
153-000-17
GM
154-000-16
GM
164-000-17
GM
170-000-17
GM
208-000-16
GM
201-000-17
GM
208-000-16
GM
35-000-16
FORD
126-000-16
FORD
180-000-16
FORD
181-000-16
FORD
236-000-17
FORD
266-000-17
FORD
110-000-16
TOYOTA
A. Different journal sizes available
ENGINE
8.3 Aries
R5 Block/P7 Head − Steel
Dodge R6/P8 Tool Steel Semi FT
VVT Hemi 5.7 & 6.4
Mopar Midget, Stanton New Head
SB Hemi
SB2 Block/Heads − Steel
BBC Tool Steel
LS1 Tool Steel 3 Bolt
2014+ GM Gen V & LT1
Pro Stock DRCE2 9-Bearing Round Lobe
Nimar Pro Stock
BBC Dart X Block
5300 BS Chevrolet Dart 53
SBC Sprint Car Core, Lightened Journals
Chrysler VVT Hemi 5.7 & 6.4
SBC Sprint Car Core, Lightened Journals
SVO V8 − Tool Steel
Ford Hemi Pro Stock, Not Gundrilled
FR9 NASCAR Flat Tappet
FORD 70MM Pro Stock 9 Bearing BB 4/7 FO
60mm SBF D3 Head
7.3 Powerstroke Diesel (1997-2002)
TRD9 5160 Semi 6 BRNG
COMPCAMS.COM
CAM HELP® 1.800.999.0853
HYDRAULIC FLAT TAPPET
These lobes are to be used in applications where torque, mileage and vacuum are primary considerations. High Energy™ Hydraulics can be used as intake or
exhaust lobes. They are simple street performance stock improvement lobes. This group must use a minimum tappet diameter of .842" (Chevrolet) or larger.
CAMSHAFT TYPE
High Energy™
Rated Duration @
.006" Tappet Lift
.842" Min. Dia.
MI 25.7 (12.3/13.4)
LOBE #
RATED
DURATION
5224
5225
5223
5226
5206
5200
5211
5205
5207
5212
5232
5222
5215
240-4
244-1
244-2
248-2
252-5
252-4
260-7
260-8
260-9
268-4
268-5
268-6
268-9
DURATION IN DEGREES
@ .050
@ .200
192
196
196
200
206
206
212
212
212
222
218
218
218
96
97
101
102
109
113
119
117
122
130
124
128
128
LOBE LIFT
.2600
.2567
.2666
.2600
.2706
.2835
.2933
.2795
.2960
.3090
.2853
.3026
.2960
TAPPET LIFT @ TDC
106°
110°
.024
.028
.028
.034
.041
.041
.049
.049
.050
.064
.059
.060
.059
.017
.020
.020
.025
.031
.031
.038
.038
.039
.052
.047
.048
.047
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.390
.385
.400
.390
.406
.425
.440
.419
.444
.464
.428
.454
.444
.416
.411
.427
.416
.433
.454
.469
.447
.474
.494
.456
.484
.474
.442
.436
.453
.442
.460
.482
.499
.475
.503
.525
.485
.514
.503
MAGNUM HYDRAULICS
Magnum Hydraulics are to be used in high performance applications with a minimum tappet diameter of .842" (Chevrolet) or larger. These lobes are more
aggressive in their design characteristics and can be used as intake or exhaust lobes. They are a big brother to the High Energy™ family and are frequently used
by the budget minded Saturday Night racer. They also provide a very "throaty" sound.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
Magnum
Rated Duration @
.006" Tappet Lift
.842" Min. Dia.
5201
5202
5239
5213
5216
5203
5240
5241
5208
5229
5214
5204
5209
5210
5217
270-4
270-5
276-3
276-4
280-3
280-4
280-9
284-3
286-3
288-9
292-2
292-3
296-3
305-3
305-4
DURATION IN DEGREES
@ .050
@ .200
224
224
228
226
230
230
232
236
236
237
244
244
246
253
253
135
132
140
136
137
140
142
146
148
148
153
151
158
163
162
LOBE LIFT
.3130
.3000
.3160
.3090
.3063
.3200
.3220
.3160
.3270
.3220
.3340
.3235
.3400
.3500
.3380
TAPPET LIFT @ TDC
106°
110°
.069
.068
.077
.072
.077
.079
.080
.091
.089
.090
.101
.101
.106
.118
.118
.057
.056
.064
.060
.064
.066
.067
.078
.075
.076
.087
.087
.092
.104
.104
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.470
.450
.474
.464
.459
.480
.483
.474
.491
.483
.501
.485
.510
.525
.507
.501
.480
.506
.494
.490
.512
.515
.506
.523
.515
.534
.518
.544
.560
.541
.532
.510
.537
.525
.521
.544
.547
.537
.556
.547
.568
.550
.578
.595
.575
HYDRAULIC FLAT TAPPET
HIGH ENERGY™ HYDRAULICS
HYDRAULIC FLAT TAPPET
HYDRAULIC FLAT TAPPET
DUAL ENERGY™ HYDRAULICS
Designed for the Dual Energy Cam™ Series, these lobes are good for every day driving where a broad torque curve is necessary. Very easy on related components. Designed as intake and exhaust lobes but could be used either way. Minimum tappet diameter of .842" is necessary. These lobes produce good power
for a daily driver or a weekend toy used as an occasional bracket race car.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
Dual Energy™
Rated Duration @
.006" Tappet Lift
.842" Min. Dia.
5110A
5146
5310
5128
5312
5128
5166
5120A
5311
5000
5126A
5326
5163
5130
5127
5315
5006
5129
5136A
5327
5002
5135
255
255
254
265
265
273
265
261
261
263
275
275
275
275
269
272
275
276
277
283
283
284
DURATION IN DEGREES
@ .050
@ .200
203
203
204
211
211
211
211
212
213
216
219
219
219
219
221
221
223
227
229
229
233
235
110
110
109
117
112
117
117
121
120
123
125
123
125
125
129
124
128
134
137
136
146
139
LOBE LIFT
.281
.281
.271
.295
.280
.295
.295
.301
.286
.292
.308
.298
.308
.308
.310
.298
.304
.308
.321
.313
.320
.321
TAPPET LIFT @ TDC
106°
110°
.036
.036
.037
.049
.049
.049
.049
.049
.046
.052
.057
.057
.057
.057
.062
.062
.057
.074
.074
.074
.074
.082
.028
.028
.027
.039
.039
.039
.039
.039
.039
.042
.047
.048
.047
.047
.051
.051
.050
.062
.062
.062
.070
.070
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.422
.422
.407
.443
.420
.443
.443
.452
.429
.438
.462
.447
.462
.462
.465
.447
.456
.462
.482
.470
.480
.482
.450
.450
.434
.472
.448
.472
.472
.482
.458
.467
.493
.477
.493
.493
.496
.477
.486
.493
.514
.501
.512
.514
.478
.478
.461
.502
.476
.502
.502
.512
.486
.496
.524
.507
.524
.524
.527
.507
.517
.524
.546
.532
.544
.546
THUMPR™ HYDRAULICS
The Thumpr™ lobe profiles are designed to optimize the character and sound, while providing excellent stability and a very wide power range in hydraulic flat
tappet applications. Specific profiles are developed uniquely for the intake and exhaust.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
Thumpr™ Int.
Rated Duration @
.006" Tappet Lift
.842" Min. Dia.
5038
5039
5040
5042
5044
271
275
279
287
295
219
223
227
235
243
130
134
138
146
154
.312
.316
.319
.326
.333
.061
.067
.074
.088
.101
.049
.055
.061
.074
.088
.468
.474
.479
.489
.500
.499
.506
.510
.522
.533
.530
.537
.542
.554
.566
Thumpr™ Int. CB
Rated Duration @
.006" Tappet Lift
.842" Min. Dia.
5020
5022
5024
279
287
295
227
235
243
132
141
149
.293
.300
.307
.073
.086
.100
.060
.073
.086
.440
.450
.461
.469
.480
.491
.498
.510
.522
Thumpr™ Int. FW
Rated Duration @
.006" Tappet Lift
.875" Min. Dia.
5520
5522
5524
279
287
295
227
235
243
137
145
153
.306
.313
.320
.073
.087
.101
.060
.073
.087
.459
.470
.480
.490
.501
.512
.520
.532
.544
LOBE LIFT
Continued on page 11
COMPCAMS.COM
CAM HELP® 1.800.999.0853
HYDRAULIC FLAT TAPPET
CAMSHAFT TYPE
LOBE #
RATED
DURATION
Thumpr™ Int. CRS
Rated Duration @
.006" Tappet Lift
.904" Min. Dia.
5820
5822
5824
Thumpr™ Exh.
Rated Duration @
.006" Tappet Lift
.842" Min. Dia.
DURATION IN DEGREES
@ .050
@ .200
279
287
295
227
235
243
142
150
158
5055
5057
5059
297
305
313
241
249
257
Thumpr™ Exh. CB
Rated Duration @
.006" Tappet Lift
.842" Min. Dia.
5031
5033
5035
297
305
313
Thumpr™ Exh. FW
Rated Duration @
.006" Tappet Lift
.875" Min. Dia.
5531
Thumpr™ Exh. CRS
Rated Duration @
.006" Tappet Lift
.904" Min. Dia.
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
106°
110°
.324
.331
.338
.075
.089
.103
.062
.075
.089
.486
.497
.507
.518
.530
.541
.551
.563
.575
148
156
164
.310
.317
.324
.094
.107
.120
.082
.094
.107
.465
.476
.486
.496
.507
.518
.527
.539
.551
241
249
257
140
148
157
.284
.291
.298
.093
.107
.120
.080
.093
.107
.426
.437
.447
.454
.466
.477
.483
.495
.507
297
241
143
.297
.093
.080
.446
.475
.505
5533
5535
305
313
249
257
152
160
.304
.311
.107
.121
.094
.107
.456
.467
.486
.498
.517
.529
5831
297
241
149
.315
.094
.081
.473
.504
.536
5833
5835
305
313
249
257
157
165
.322
.329
.109
.123
.094
.108
.483
.494
.515
.526
.547
.559
NEW NOSTALGIA PLUS™ HYDRAULICS
Designed to mimic the sound of the great engines of the past while improving performance by applying today’s design techniques, these profiles are used in
our Nostalgia Plus™ Series to capture the essence of the factory muscle cars of the 60s and 70s. These profiles are slightly slower off the seat than the Xtreme
Energy™ profiles but have excellent area under the curve for outstanding power.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
New Nostalgia Plus™
Rated Duration @
.006" Tappet Lift
.842" Min. Dia.
5066
5067
5068
5069
5070
5071
258
265
276
283
286
293
DURATION IN DEGREES
@ .050
@ .200
211
218
229
236
239
246
120
124
140
147
151
157
LOBE LIFT
.284
.280
.312
.308
.322
.318
TAPPET LIFT @ TDC
106°
110°
.048
.057
.078
.088
.095
.105
.036
.045
.064
.074
.081
.091
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.426
.420
.468
.462
.483
.477
.454
.448
.499
.493
.515
.509
.483
.476
.530
.524
.547
.541
RACE HYDRAULICS
These are the largest hydraulic designs COMP Cams® offers. With a minimum tappet diameter of .842" or larger needed, these designs are intended for all out
racing only. The larger lobes (268°, 270°, 276° @ .050" duration) were designed with large cubic inch motors in mind in a high RPM environment. These lobes
have smooth ramps, making it easier for the spring to control the valve.
CAMSHAFT TYPE
Rated Duration @
.006" Tappet Lift
.842" Min. Dia.
MI 25.8 (12.9/12.9)
LOBE #
RATED
DURATION
5195
5221
5196
5197
5198
5199
312-5
312-6
320-5
320-9
320-10
328-8
DURATION IN DEGREES
@ .050
@ .200
260
260
268
268
270
276
169
171
178
175
180
185
LOBE LIFT
.3600
.3530
.3600
.3530
.3675
.3675
TAPPET LIFT @ TDC
106°
110°
.128
.131
.143
.141
.147
.156
.114
.117
.129
.128
.133
.142
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.540
.530
.540
.530
.551
.551
.576
.565
.576
.565
.588
.588
.612
.600
.612
.600
.625
.625
HYDRAULIC FLAT TAPPET
THUMPR™ HYDRAULICS Continued
HYDRAULIC FLAT TAPPET
HYDRAULIC FLAT TAPPET
XTREME ENERGY™ HYDRAULICS
Designed to maximize torque, acceleration and throttle response while providing excellent high RPM horsepower. A faster intake valve opening increases engine
vacuum and enhances throttle response. Special intake closing ramps close the valve sooner, providing more cylinder pressure and torque without resulting
in excessive valve train noise. Faster ramps achieve maximum velocity sooner, increasing the area under the lift curve and providing maximum horsepower.
Smoother exhaust designs allow for a more effective purge of spent gasses from the combustion chamber to further increase horsepower.
CAMSHAFT TYPE
Xtreme Energy™ Int.
Rated Duration @
.006" Tappet Lift
.842" Min. Dia.
MI 22.9 (11.1/11.8)
Xtreme Energy™ Exh.
Rated Duration @
.006" Tappet Lift
.842" Min. Dia.
LOBE #
RATED
DURATION
5437
5440
5430
5441
5431
5442
5432
5443
5433
5444
5414
5445
5435
5446
5447
5418
5448
5438
5449
5439
5419
5207
5205
5230
5232
5212
5201
5202
5203
5216
5208
5238
5214
5209
5210
5231
5234
5233
DURATION IN DEGREES
@ .050
@ .200
240
250
250
256
256
262
262
268
268
270
270
274
274
278
284
288
290
294
294
298
298
196
206
206
212
212
218
218
224
224
226
226
230
230
234
240
244
246
250
250
254
254
106
117
114
124
120
130
128
137
134
139
136
143
140
147
153
157
159
163
163
167
166
260
260
268
268
268
270
270
280
280
286
286
292
296
305
308
316
316
212
212
218
218
222
224
224
230
230
236
236
244
246
253
256
264
264
121
117
128
124
130
133
132
140
138
144
143
154
154
160
165
170
173
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
106°
110°
.275
.288
.277
.298
.283
.308
.297
.318
.303
.321
.303
.325
.303
.332
.338
.335
.344
.360
.346
.360
.338
.026
.041
.041
.050
.050
.060
.060
.070
.070
.073
.073
.080
.080
.087
.097
.104
.108
.115
.115
.122
.122
.018
.030
.030
.038
.038
.047
.047
.056
.056
.060
.060
.066
.066
.073
.084
.091
.094
.101
.101
.108
.108
.413
.432
.416
.447
.425
.462
.446
.477
.455
.482
.455
.488
.455
.498
.507
.503
.516
.540
.519
.540
.507
.440
.461
.443
.477
.453
.493
.475
.509
.485
.514
.485
.520
.485
.531
.541
.536
.550
.576
.554
.576
.541
.468
.490
.471
.507
.481
.524
.505
.541
.515
.546
.515
.553
.515
.564
.575
.570
.585
.612
.588
.612
.575
.296
.280
.303
.285
.309
.313
.300
.320
.306
.327
.306
.334
.340
.350
.350
.285
.353
.050
.050
.059
.059
.064
.067
.068
.078
.078
.085
.086
.100
.101
.111
.120
.132
.133
.040
.040
.048
.047
.052
.056
.056
.065
.066
.072
.073
.087
.088
.098
.106
.118
.120
.444
.420
.455
.428
.464
.470
.450
.480
.459
.491
.459
.501
.510
.525
.525
.428
.530
.474
.448
.485
.456
.494
.501
.480
.512
.490
.523
.490
.534
.544
.560
.560
.456
.565
.503
.476
.515
.485
.525
.532
.510
.544
.520
.556
.520
.568
.578
.595
.595
.485
.600
COMPCAMS.COM
CAM HELP® 1.800.999.0853
HYDRAULIC FLAT TAPPET
The Xtreme Energy XFI™ Series is designed for use with modern induction systems, heads, springs and rockers. The XFI™ intake lobes have more lift than
the base Xtreme series, and the XFI™ exhaust lobes have more area under the curve, for better exhaust flow, than the base exhaust series. These are the first
hydraulic flat tappet profiles designed for use with COMP Cams® Beehive™ Valve Springs, such as the #26915, #26918 and #26120. The combination of these
profiles, the Beehive™ Springs, and our Ultra Pro Magnum™ Rocker Arms in higher ratios, makes for the most revolutionary improvement in hydraulic flat tappet
design to date by bringing the latest race winning technology to the street.
CAMSHAFT TYPE
Xtreme XFI™ Int.
Rated Duration @
.006" Tappet Lift
.842" Min. Dia.
MI 23.1 (11.2/11.9)
Xtreme XFI™ Exh.
Rated Duration @
.006" Tappet Lift
.842" Min. Dia.
MI 25.0 (12.1/12.9)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
5082
5083
5084
5085
5086
5087
5088
5089
5090
252
256
260
262
268
274
280
286
292
208
212
216
218
224
230
236
242
248
121
125
129
131
138
143
150
156
162
.298
.305
.312
.315
.325
.336
.345
.355
.365
.044
.050
.056
.060
.070
.081
.091
.102
.112
.032
.038
.044
.047
.057
.067
.077
.088
.098
.447
.458
.468
.473
.488
.504
.518
.533
.548
.477
.488
.499
.504
.520
.538
.552
.568
.584
.507
.519
.530
.536
.553
.571
.587
.604
.621
5101
5103
5105
5107
5109
266
272
280
290
302
217
223
231
241
253
127
134
143
154
166
.295
.308
.322
.342
.362
.059
.068
.082
.099
.120
.047
.056
.068
.085
.106
.443
.462
.483
.513
.543
.472
.493
.515
.547
.579
.502
.524
.547
.581
.615
LOBE LIFT
PURPLE PLUS HYDRAULICS (.904" MIN. TAPPET)
These use the same ramps as the New Nostalgia Plus™ lobes but have more velocity for use with Chrysler/Mopar .904" minimum tappet diameters.
CAMSHAFT TYPE
Purple Plus
Rated Duration @
.006" Tappet Lift
.904" Min. Dia.
MI 24.0 (11.6/12.4)
LOBE #
RATED
DURATION
6882
6883
6884
6885
6886
6887
280
287
284
291
292
299
DURATION IN DEGREES
@ .050
@ .200
233
240
239
246
247
254
148
153
154
159
163
169
LOBE LIFT
.316
.316
.323
.323
.339
.339
TAPPET LIFT @ TDC
106°
110°
.086
.096
.097
.107
.111
.123
.071
.082
.082
.092
.097
.108
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.474
.474
.485
.485
.509
.509
.506
.506
.517
.517
.542
.542
.537
.537
.549
.549
.576
.576
HYDRAULIC FLAT TAPPET
XTREME ENERGY XFI™ HYDRAULICS
HYDRAULIC FLAT TAPPET
HYDRAULIC FLAT TAPPET
XTREME MOPAR HYDRAULICS (.904" MIN. TAPPET)
Xtreme Mopar Hydraulics are optimized for use with .904" minimum tappet diameters. The additional velocity allowed with the Chrysler/Mopar .904" tappet
results in more area and lift than any of our other comparable hydraulic designs. These are the best large tappet hydraulics ever.
CAMSHAFT TYPE
Xtreme Mopar Int.
Rated Duration @
.006" Tappet Lift
.904" Min. Dia.
MI 23.1 (11.2/11.9)
Xtreme Mopar Exh.
Rated Duration @
.006" Tappet Lift
.904" Min. Dia.
MI 25.0 (12.1/12.9)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
5964
5962
5965
5960
5961
5966
275
279
285
289
295
295
231
235
241
245
251
251
149
153
159
163
169
169
.350
.356
.363
.356
.356
.376
.083
.089
.101
.109
.120
.120
.069
.075
.087
.094
.105
.105
.525
.534
.545
.534
.534
.564
.560
.570
.581
.570
.570
.602
.595
.605
.617
.605
.605
.639
5984
5985
5980
5981
5986
287
297
301
307
307
237
247
251
257
257
151
161
166
171
171
.350
.363
.360
.360
.376
.090
.107
.115
.126
.126
.076
.093
.101
.111
.111
.525
.545
.540
.540
.564
.560
.581
.576
.576
.602
.595
.617
.612
.612
.639
LOBE LIFT
XTREME 4X4 HYDRAULICS (.904" MIN. TAPPET)
The Xtreme 4x4 for .904" are similar to the XE Mopar .904" designs but optimized for AMC I6 off-road applications for great torque, responsiveness and a
wide power range. For use with .904" or larger OD hydraulic tappets and 1.948" or larger journal diameter. Slightly softer off the seat than the XFI .842" series
but with greatly increased area for a given seat timing by taking advantage of the larger .904" tappet. Quiet, stable and great torque. Nitriding recommended,
especially on shorter duration, for enhanced durability.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
Xtreme 4x4 .904
Rated Duration @
.006" Tappet Lift
1.948"+ Journal
.904"+ Tappet OD
MI 23.5 (11.3/12.2)
Low Lift
5900
5901
5902
5903
5904
5852
250
254
258
262
266
258
DURATION IN DEGREES
@ .050
@ .200
205
209
213
217
221
213
122
126
130
134
138
117
LOBE LIFT
.305
.311
.317
.321
.325
.270
TAPPET LIFT @ TDC
106°
110°
.047
.052
.057
.062
.067
.052
.036
.041
.046
.051
.056
.039
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.458
.467
.476
.482
.488
.405
.488
.498
.507
.514
.520
.432
.519
.529
.539
.546
.553
.459
MPM STOCKER HYDRAULICS (.842" MIN. TAPPET)
These are high RPM hydraulic flat tappets designed around a minimum tappet diameter of .842" or larger. Intended for all out racing only.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
MPM Stocker
Rated Duration @
.006" Tappet Lift
.842" Min. Dia.
MI 29.1 (13.8/15.3)
6622
6624
6626
6628
315
319
323
327
DURATION IN DEGREES
@ .050
@ .200
260
264
268
272
167
171
174
178
LOBE LIFT
.324
.324
.324
.324
TAPPET LIFT @ TDC
106°
110°
.127
.134
.141
.147
.113
.120
.127
.134
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.486
.486
.486
.486
.518
.518
.518
.518
.551
.551
.551
.551
COMPCAMS.COM
CAM HELP® 1.800.999.0853
HYDRAULIC FLAT TAPPET
These hydraulic flat tappet Stocker/Lift Rule profiles are quicker than the MPMs, while designed around a minimum tappet diameter of .842" or larger. These
designs are intended for all out racing only.
CAMSHAFT TYPE
CRL Stocker
Rated Duration @
.006" Tappet Lift
.842" Min. Dia.
MI 29.3 (13.7/15.6)
LOBE #
RATED
DURATION
6592
6593
6594
6575
6595
6596
6576
6577
6578
312
314
316
318
320
322
324
326
328
DURATION IN DEGREES
@ .050
@ .200
258
260
262
264
266
268
270
272
274
168
170
172
173
175
177
179
181
183
LOBE LIFT
.325
.325
.325
.325
.325
.325
.325
.325
.325
TAPPET LIFT @ TDC
106°
110°
.128
.132
.135
.139
.143
.146
.150
.153
.156
.114
.117
.121
.125
.128
.132
.135
.139
.143
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.488
.488
.488
.488
.488
.488
.488
.488
.488
.520
.520
.520
.520
.520
.520
.520
.520
.520
.553
.553
.553
.553
.553
.553
.553
.553
.553
USI USX UPI UPX STOCKER HYDRAULICS
These are new designs for high RPM stocker applications.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
USI
Rated Duration @
.020" Tappet Lift
5538
DURATION IN DEGREES
@ .050
@ .200
294
262
166
5540
298
266
USX
Rated Duration @
.020" Tappet Lift
5544
301
5546
Thumpr™ Int. FW
Rated Duration @
.006" Tappet Lift
.875" Min. Dia.
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
106°
110°
.345
.123
.110
.552
.587
.621
170
.345
.130
.116
.552
.587
.621
268
174
.365
.134
.121
.584
.621
.657
305
272
178
.365
.141
.128
.584
.621
.657
5520
5522
5524
279
287
295
227
235
243
137
145
153
.306
.313
.320
.073
.087
.101
.060
.073
.087
.459
.470
.480
.490
.501
.512
.520
.532
.544
USI
Rated Duration @
.020" Tappet Lift
5840
298
266
157
.267
.125
.113
.401
.427
.454
USX
Rated Duration @
.020" Tappet Lift
5846
305
272
166
.277
.136
.124
.416
.443
.471
UPI
Rated Duration @
.020" Tappet Lift
5854
294
263
157
.267
.124
.111
.401
.427
.454
UPX
Rated Duration @
.020" Tappet Lift
5862
300
269
164
.277
.135
.122
.416
.443
.471
HYDRAULIC FLAT TAPPET
CRL STOCKER HYDRAULICS (.842" MIN. TAPPET)
HYDRAULIC ROLLER
HYDRAULIC ROLLER
HIGH ENERGY™ & MAGNUM HYDRAULIC ROLLERS − LOW & HIGH LIFT
The low lift profiles were designed for street and marine use. The low lift adds dependability and reliability for extended use applications. The high lift versions
of the hydraulic rollers are designed for all out applications where high lift is desired because of cylinder head or engine modifications. They function well for
street/strip. These lobes run well in big cubic inch marine engines.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
Hydraulic Roller Low Lift
Rated Duration @
.006" Tappet Lift
Low Lift
Journal = S,B,F,R…
MI 28.7 (13.8/14.9)
3100
3101
3102
3103
3104
3105
3106
3160
3050
3168
3161
3051
3162
3052
3163
3053
3164
230
240
242
246
254
256
262
266
264
273
276
274
292
284
302
296
312
178
188
191
192
199
200
206
210
210
215
220
220
230
230
240
240
250
93
103
97
110
116
118
116
116
127
119
123
134
128
142
135
148
142
.2700
.2850
.2600
.3000
.3000
.3100
.3000
.2853
.3200
.2853
.2853
.3200
.2853
.3200
.2853
.3200
.2853
.014
.022
.024
.024
.032
.035
.041
.047
.047
.052
.060
.061
.075
.077
.090
.091
.104
.009
.015
.017
.017
.024
.026
.032
.037
.037
.041
.049
.050
.064
.064
.078
.078
.092
.405
.428
.390
.450
.450
.465
.450
.428
.480
.428
.428
.480
.428
.480
.428
.480
.428
.432
.456
.416
.480
.480
.496
.480
.456
.512
.456
.456
.512
.456
.512
.456
.512
.456
.459
.485
.442
.510
.510
.527
.510
.485
.544
.485
.485
.544
.485
.544
.485
.544
.485
Hydraulic Roller High Lift
Rated Duration @
.006" Tappet Lift
High Lift
Journal = S,B,F,R…
MI 28.7 (13.8/14.9)
3118
3107
3108
3114
3109
3110
3119
3112
3111
3511
3122
3113
3150
3120
3115
3170
3151
3116
3171
3152
3117
260
266
270
281
276
284
280
290
286
286
290
304
307
304
304
315
318
314
325
329
324
206
210
215
220
220
224
224
230
230
230
236
242
244
244
244
248
252
252
258
262
262
126
130
133
134
138
136
144
143
152
153
160
158
158
161
164
161
164
169
169
172
177
.3330
.3330
.3330
.3200
.3400
.3330
.3500
.3400
.3760
.3760
.3800
.3670
.3600
.3830
.4000
.3600
.3600
.4000
.3600
.3600
.4200
.041
.047
.055
.060
.060
.066
.066
.075
.076
.079
.091
.101
.100
.101
.104
.105
.111
.115
.122
.127
.130
.032
.037
.044
.048
.049
.054
.054
.063
.063
.065
.076
.087
.087
.087
.090
.091
.097
.100
.108
.113
.115
.500
.500
.500
.480
.510
.500
.525
.510
.564
.564
.570
.551
.540
.575
.600
.540
.540
.600
.540
.540
.630
.533
.533
.533
.512
.544
.533
.560
.544
.602
.602
.608
.587
.576
.613
.640
.576
.576
.640
.576
.576
.672
.566
.566
.566
.544
.578
.566
.595
.578
.639
.639
.646
.624
.612
.651
.680
.612
.612
.680
.612
.612
.714
LOBE LIFT
COMPCAMS.COM
CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
The Tri-Power Xtreme™ lobes are designed to deliver the best combination of torque, horsepower and fuel effeciency. These designs have quick seat timing
and excellent area under the curve but allow reduced spring force for less frictional losses compared to other members of the Xtreme family. These are sized
especially for the required timing of the Tri-Power series to provide optimum valve timing to reduce the parisitic losses of pumping the intake charge in past the
throttle blades and pushing out spent exhaust.e
CAMSHAFT TYPE
Tri-Power Xtreme™
Rated Duration @
.006" Tappet Lift
Hydraulic Roller
Journal = J,S,B,R…
MI 27.1 (13.3/13.8)
Tri-Power Xtreme™
Rated Duration @
.006" Tappet Lift
Hydraulic Roller
Journal = J,S,B,R…
LOBE #
RATED
DURATION
3590
3591
3592
3595
3596
DURATION IN DEGREES
@ .050
@ .200
246
254
262
258
264
194
202
210
206
212
111
118
125
118
124
3597
3604
3605
3606
3608
3609
3611
3594
270
246
254
262
258
264
270
262
218
194
202
210
206
212
218
210
13390
13391
13392
13393
13394
13395
13396
13397
13398
262
264
266
268
270
272
274
276
278
210
212
214
216
218
220
222
224
226
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
106°
110°
.294
.298
.302
.290
.294
.028
.036
.047
.043
.051
.020
.028
.036
.034
.041
.441
.447
.453
.435
.441
.470
.477
.483
.464
.470
.500
.507
.513
.493
.500
130
115
123
130
124
130
136
129
.298
.312
.318
.324
.309
.314
.320
.320
.060
.028
.036
.047
.043
.052
.060
.047
.049
.020
.028
.037
.034
.041
.049
.037
.447
.468
.477
.486
.464
.471
.480
.480
.477
.499
.509
.518
.494
.502
.512
.512
.507
.530
.541
.551
.525
.534
.544
.544
129
131
132
134
136
137
139
141
143
.325
.325
.325
.325
.325
.325
.325
.325
.325
.047
.050
.053
.056
.059
.062
.065
.068
.071
.037
.039
.042
.045
.047
.050
.053
.056
.059
.488
.488
.488
.488
.488
.488
.488
.488
.488
.520
.520
.520
.520
.520
.520
.520
.520
.520
.553
.553
.553
.553
.553
.553
.553
.553
.553
HYDRAULIC ROLLER
TRI-POWER XTREME™ HYDRAULIC ROLLERS
HYDRAULIC ROLLER
HYDRAULIC ROLLER
THUMPR™ HYDRAULIC ROLLERS
The Thumpr™ lobe profiles are designed to optimize the character and sound, while providing excellent stability and a very wide power range in hydraulic roller
applications. Specific profiles are developed uniquely for intake and exhaust.
CAMSHAFT TYPE
Thumpr™ Int.
Rated Duration @
.006" Tappet Lift
Journal = N,S,B,R…
MI 29.7 (14.7/15.0)
Thumpr™ Exh.
Rated Duration @
.006" Tappet Lift
Journal = N,S,B,R…
MI 32.0 (14.7/17.3)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
3028
3022
3024
3026
3056
3058
275
283
291
299
307
315
219
227
235
243
251
259
134
142
150
157
165
173
.335
.341
.347
.354
.361
.368
.058
.070
.082
.096
.110
.125
.047
.058
.070
.082
.096
.110
.503
.512
.521
.531
.542
.552
.536
.546
.555
.566
.578
.589
.570
.580
.590
.602
.614
.626
3528
3532
3534
3536
3538
3552
3554
3556
275
283
291
299
307
283
291
299
219
227
235
243
251
227
235
243
133
140
148
156
164
139
146
154
.325
.331
.337
.344
.350
.321
.327
.334
.058
.070
.082
.096
.111
.070
.082
.096
.047
.058
.070
.082
.096
.058
.070
.082
.488
.497
.506
.516
.525
.482
.491
.501
.520
.530
.539
.550
.560
.514
.523
.534
.553
.563
.573
.585
.595
.546
.556
.568
3031
3043
3045
3047
295
303
311
319
233
241
249
257
142
149
157
165
.325
.331
.338
.345
.082
.094
.107
.120
.070
.082
.094
.107
.488
.497
.507
.518
.520
.530
.541
.552
.553
.563
.575
.587
3541
3543
3545
3547
295
303
311
319
233
241
249
257
139
147
155
164
.315
.321
.328
.335
.082
.094
.107
.120
.070
.082
.094
.107
.473
.482
.492
.503
.504
.514
.525
.536
.536
.546
.558
.570
3563
3565
3567
303
311
319
241
249
257
145
153
161
.311
.318
.325
.094
.106
.119
.082
.093
.106
.467
.477
.488
.498
.509
.520
.529
.541
.553
LOBE LIFT
QND HYDRAULIC ROLLERS
The QND series is based off the popular LXL series profiles but are optimized to be used in smaller journal applications including standard (1.868") Small Block
Chevy engines with lower (1.5:1 to 1.65:1) rocker ratios. These lobes have a softer closing ramp than the Xtreme Energy™ series and are a great choice for
either marine or industrial applications where lift is important, as well as low seat erosion over time and low valve noise. Also a great choice for the exhaust
lobe in any application.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
QND
Rated Duration @
.006" Tappet Lift
Journal = S,B,F,R…
MI 28.0 (13.5/14.5)
13354
13355
13356
13357
13358
266
270
274
278
282
DURATION IN DEGREES
@ .050
@ .200
211
215
219
223
227
133
137
141
145
148
LOBE LIFT
.365
.365
.365
.365
.365
TAPPET LIFT @ TDC
106°
110°
.049
.054
.061
.067
.074
.038
.034
.049
.055
.061
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.548
.548
.548
.548
.548
.584
.584
.584
.584
.584
.621
.621
.621
.621
.621
COMPCAMS.COM
CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
The SLW Hydraulic Rollers are very smooth designs, slower than the Thumpr™ exhaust, intended for high RPM use with heavy valves and more flexible rocker
systems.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
SLW
Rated Duration @
.006" Tappet Lift
MI 35.0 (16.6/18.4)
13531
13533
20535
316
324
332
DURATION IN DEGREES
@ .050
@ .200
244
252
260
150
158
166
LOBE LIFT
.349
.355
.360
TAPPET LIFT @ TDC
106°
110°
.092
.105
.119
.080
.092
.105
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.558
.568
.576
.593
.604
.612
.628
.639
.648
XTREME ENERGY™ HYDRAULIC ROLLERS
These designs share all of the characteristics of the flat tappet lobes but we have added the new technology of CRC (Constant Radius of Curvature) inverted
radius of curvature ramp designs. COMP Cams® has enhanced this technique to ensure durability with these most aggressive hydraulic roller designs. The high
lift versions that have lobe numbers in the 3100s are more aggressive over the nose and will require more spring or less RPM. These lobes run well in street/
strip and marine applications. With more agressive and faster ramps they also provide good vacuum.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
3322
3323
3304
3310
3305
244
249
252
252
256
192
198
200
200
204
89
104
113
122
116
.245
.265
.285
.315
.285
.026
.032
.034
.034
.039
.018
.024
.026
.026
.030
.368
.398
.428
.473
.428
.392
.424
.456
.504
.456
.417
.451
.485
.536
.485
3302
3311
3300
3312
3301
3313
3314
3315
3316
3317
3318
3319
258
258
262
264
266
270
276
282
288
294
300
306
206
206
210
212
214
218
224
230
236
242
248
254
124
128
126
133
129
139
145
151
157
164
171
178
.305
.320
.305
.325
.305
.330
.335
.340
.347
.360
.375
.387
.041
.041
.046
.049
.052
.058
.068
.078
.089
.101
.114
.127
.032
.032
.036
.039
.041
.046
.055
.064
.075
.086
.097
.110
.458
.480
.458
.488
.458
.495
.503
.510
.521
.540
.563
.581
.488
.512
.488
.520
.488
.528
.536
.544
.555
.576
.600
.619
.519
.544
.519
.553
.519
.561
.570
.578
.590
.612
.638
.658
Xtreme Energy™
Rated Duration @
.006" Tappet Lift
Small Block Journal
Journal = S,B,R…
3188
3190
3192
3194
3196
258
266
276
282
288
206
214
224
230
236
132
141
152
157
162
.336
.353
.378
.389
.390
.042
.053
.069
.078
.090
.032
.042
.056
.064
.075
.504
.530
.567
.584
.585
.538
.565
.605
.622
.624
.571
.600
.643
.661
.663
Big Block Journal
Journal = B,R…
MI 27.1 (13.4/13.7)
3340
3341
3342
3343
3344
3345
3346
252
258
264
270
276
282
288
200
206
212
218
224
230
236
118
123
127
131
136
141
147
.300
.300
.300
.300
.300
.300
.306
.034
.042
.050
.058
.068
.078
.089
.026
.032
.039
.047
.055
.065
.075
.450
.450
.450
.450
.450
.450
.459
.480
.480
.480
.480
.480
.480
.490
.510
.510
.510
.510
.510
.510
.520
CAMSHAFT TYPE
Xtreme Energy
Rated Duration @
.006" Tappet Lift
Small Block Journal
Journal = I,S,B,R…
MI 27.1 (13.4/13.7)
™
LOBE LIFT
Continued on page 22
HYDRAULIC ROLLER
SLW HYDRAULIC ROLLER SERIES
HYDRAULIC ROLLER
HYDRAULIC ROLLER
XTREME ENERGY™ HYDRAULIC ROLLERS Continued
CAMSHAFT TYPE
LOBE #
RATED
DURATION
Big Block Journal
Journal = B,R…
MI 27.1 (13.4/13.7)
3347
3348
3349
3414
3415
Ford Journal
Journal = F,R…
MI 25.9(12.7/13.2)
3628
3610
3630
3611
3612
3632
3633
3613
3634
3635
3636
3637
3638
DURATION IN DEGREES
@ .050
@ .200
294
300
306
310
312
242
248
254
258
260
155
162
170
173
174
256
264
266
270
276
274
278
288
282
286
290
294
298
208
212
216
218
224
224
228
230
232
236
240
244
248
133
131
140
136
140
148
152
144
155
159
162
166
169
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
106°
110°
.318
.329
.341
.341
.341
.100
.111
.123
.130
.133
.085
.096
.108
.115
.118
.477
.494
.512
.512
.512
.509
.526
.546
.546
.546
.541
.559
.580
.580
.580
.333
.320
.340
.320
.320
.347
.352
.320
.353
.356
.359
.362
.365
.044
.050
.056
.058
.068
.069
.076
.078
.084
.092
.099
.107
.115
.033
.039
.044
.047
.055
.056
.062
.065
.069
.076
.084
.091
.099
.500
.480
.510
.480
.480
.521
.528
.480
.530
.534
.539
.543
.548
.533
.512
.544
.512
.512
.555
.563
.512
.565
.570
.574
.579
.584
.566
.544
.578
.544
.544
.590
.598
.544
.600
.605
.610
.615
.621
XTREME 4X4™ HYDRAULIC ROLLERS
Due to the allowances of lower engine speed, these designs are slightly faster than the original Xtreme Energy™ Hydraulic Rollers. Great low and mid-range
torque. They are our most aggressive hydraulic roller lobes and run well in street, off-road and four-wheeling.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
Xtreme 4x4
Rated Duration @
.006" Tappet Lift
Small Block Journal
Journal = S,B,F,R…
MI 25.9(12.7/13.2)
3324
3326
3303
3306
3307
3308
3309
259
263
265
269
273
279
283
™
DURATION IN DEGREES
@ .050
@ .200
210
214
216
220
224
230
234
131
134
136
138
141
145
148
LOBE LIFT
.316
.316
.316
.316
.316
.316
.316
TAPPET LIFT @ TDC
106°
110°
.047
.052
.056
.062
.069
.079
.087
.036
.041
.044
.049
.056
.065
.072
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.474
.474
.474
.474
.474
.474
.474
.506
.506
.506
.506
.506
.506
.506
.537
.537
.537
.537
.537
.537
.537
COMPCAMS.COM
CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
The Xtreme Energy XFI™ series is designed for use with modern induction systems, heads, springs and rockers. The XFI™ intake lobes have more lift than the
base Xtreme series, and the XFI™ exhaust lobes have more area under the curve, for better exhaust flow, than the base exhaust series. These are the first hydraulic roller profiles designed for use with COMP Cams® Beehive™ Valve Springs such as the #26915, #26918 & #26120. The combination of these profiles,
the springs and our very stiff Ultra Pro Magnum™ Rocker Arms in higher ratios, makes for the most revolutionary improvement in hydraulic roller design to date
by bringing the latest race winning technology to the street.
CAMSHAFT TYPE
Xtreme XFI™ Int.
Rated Duration @
.006" Tappet Lift
Hydraulic Roller
Journal = J,S,B,R…
MI 26.6 (13.1/13.5)
Xtreme XFI™ Exh.
Rated Duration @
.006" Tappet Lift
Hydraulic Roller
Journal = I,S,B,R…
MI 27.3 (13.4/13.9)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
3004
3010
3005
3011
3002
3012
3003
3013
3006
3014
3007
3008
3015
3009
13080
3016
13081
13082
3017
13083
13084
3018
13085
13086
3019
13087
13088
3020
13089
13090
3021
250
252
254
256
258
260
262
264
266
268
270
272
274
276
278
280
282
284
286
288
290
292
294
296
298
300
302
304
306
308
310
200
202
204
206
208
210
212
214
216
218
220
222
224
226
228
230
232
234
236
238
240
242
244
246
248
250
252
254
256
258
260
126
128
130
132
134
136
137
139
141
143
145
147
149
150
152
154
156
157
159
161
163
165
166
168
170
172
174
176
178
180
182
.342
.344
.345
.347
.348
.350
.352
.353
.354
.356
.357
.357
.358
.359
.360
.360
.361
.361
.362
.363
.364
.365
.366
.366
.367
.368
.369
.370
.371
.372
.373
.034
.036
.039
.041
.044
.047
.049
.052
.055
.058
.062
.065
.068
.072
.075
.079
.083
.087
.090
.094
.098
.102
.106
.110
.115
.119
.123
.127
.131
.136
.140
.025
.027
.029
.032
.034
.036
.039
.041
.044
.047
.049
.052
.055
.058
.062
.065
.068
.072
.075
.079
.083
.087
.090
.094
.098
.102
.106
.111
.115
.119
.123
.513
.516
.518
.521
.522
.525
.528
.530
.531
.534
.536
.536
.537
.539
.540
.540
.542
.542
.543
.545
.546
.548
.549
.549
.551
.552
.554
.555
.557
.558
.560
.547
.550
.552
.555
.557
.560
.563
.565
.566
.570
.571
.571
.573
.574
.576
.576
.578
.578
.579
.581
.582
.584
.586
.586
.587
.589
.590
.592
.594
.595
.597
.581
.585
.587
.590
.592
.595
.598
.600
.602
.605
.607
.607
.609
.610
.612
.612
.614
.614
.615
.617
.619
.621
.622
.622
.624
.626
.627
.629
.631
.632
.634
3030
13130
13131
13132
3033
13133
256
258
260
262
264
266
204
206
208
210
212
214
128
130
131
133
135
137
.333
.335
.337
.339
.341
.343
.040
.043
.045
.048
.050
.053
.031
.033
.035
.038
.040
.043
.500
.503
.506
.509
.512
.515
.533
.536
.539
.542
.546
.566
.570
.573
.576
.580
13134
3034
268
270
216
218
139
141
.345
.347
.056
.059
.045
.048
.518
.521
.549
.552
.555
.583
.587
.590
LOBE LIFT
Continued on page 24
HYDRAULIC ROLLER
XTREME ENERGY XFI™ HYDRAULIC ROLLERS
HYDRAULIC ROLLER
HYDRAULIC ROLLER
XTREME ENERGY XFI™ HYDRAULIC ROLLERS Continued
CAMSHAFT TYPE
Xtreme XFI™ Exh.
Rated Duration @
.006" Tappet Lift
Hydraulic Roller
Journal = I,S,B,R…
MI 27.3 (13.4/13.9)
LOBE #
RATED
DURATION
13135
13136
3035
13137
13138
3036
13139
13140
3037
13141
13142
3038
13143
13144
3039
13145
13146
3040
13147
13148
3041
272
274
276
278
280
282
284
286
288
290
292
294
296
298
300
302
304
306
308
310
312
DURATION IN DEGREES
@ .050
@ .200
220
222
224
226
228
230
232
234
236
238
240
242
244
246
248
250
252
254
256
258
260
143
145
147
148
151
152
154
156
158
160
162
163
165
167
169
171
172
174
176
178
180
LOBE LIFT
.349
.351
.353
.353
.354
.355
.356
.356
.357
.358
.359
.360
.361
.361
.362
.363
.363
.364
.365
.366
.367
TAPPET LIFT @ TDC
106°
110°
.063
.066
.069
.072
.076
.080
.083
.087
.091
.094
.098
.102
.106
.110
.114
.118
.122
.126
.130
.134
.138
.051
.053
.056
.059
.063
.066
.069
.072
.076
.079
.083
.087
.091
.094
.098
.102
.106
.110
.114
.118
.122
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.524
.527
.530
.530
.531
.533
.534
.534
.536
.537
.539
.540
.542
.542
.543
.545
.545
.546
.548
.549
.551
.558
.562
.565
.565
.566
.568
.570
.570
.571
.573
.574
.576
.578
.578
.579
.581
.581
.582
.584
.586
.587
.593
.597
.600
.600
.602
.604
.605
.605
.607
.609
.610
.612
.614
.614
.615
.617
.617
.619
.621
.622
.624
QXI HYDRAULIC ROLLERS
The QXI Series lobe profiles are designed to provide the highest available valve lift for modern cylinder head ports, along with excellent stability and the broadest
possible power range in hydraulic roller applications. Designed for both street and racing use, these lobes were developed in two degree intervals to allow small
tuning variations between the long and short runners of single 4bbl type manifolds.
CAMSHAFT TYPE
QXI
Rated Duration @
.006" Tappet Lift
Journal = S,B,F,R…
MI 27.4 (13.4/14.0)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
13440
13441
13442
13443
13444
13445
13446
13447
13448
13449
267
269
271
273
275
277
279
281
283
285
215
217
219
221
223
225
227
229
231
233
137
139
141
142
144
146
148
150
152
154
.373
.375
.377
.379
.381
.383
.385
.387
.389
.391
.054
.057
.060
.063
.067
.070
.073
.077
.080
.084
.043
.046
.049
.051
.054
.057
.060
.064
.067
.070
.560
.563
.566
.569
.572
.575
.578
.581
.584
.587
.597
.600
.603
.606
.610
.613
.616
.619
.622
.626
.634
.638
.641
.644
.648
.651
.655
.658
.661
.665
13450
13451
13452
13453
287
289
291
293
235
237
239
241
156
158
160
162
.393
.395
.397
.398
.087
.091
.095
.099
.073
.077
.080
.084
.590
.593
.596
.597
.629
.632
.635
.637
.668
.672
.675
.677
LOBE LIFT
Continued on page 25
COMPCAMS.COM
CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
CAMSHAFT TYPE
QXI
Rated Duration @
.006" Tappet Lift
Journal = S,B,F,R…
MI 27.4 (13.4/14.0)
LOBE #
RATED
DURATION
13454
13455
13456
13457
13458
13459
13460
13461
13462
13948
13950
13952
13954
13956
13958
13960
13962
13964
13966
295
297
299
301
303
305
307
309
311
283
287
291
295
299
303
307
311
315
319
DURATION IN DEGREES
@ .050
@ .200
243
245
247
249
251
253
255
257
259
231
235
239
243
247
251
255
259
263
267
164
166
168
170
172
174
176
177
179
151
155
159
163
167
171
174
178
182
185
LOBE LIFT
.399
.399
.399
.399
.399
.399
.399
.399
.399
.374
.376
.378
.382
.384
.384
.384
.384
.384
.384
TAPPET LIFT @ TDC
106°
110°
.103
.106
.110
.114
.118
.122
.126
.130
.134
.080
.087
.095
.103
.110
.118
.126
.134
.142
.149
.087
.091
.095
.099
.103
.106
.110
.114
.118
.067
.073
.080
.087
.095
.103
.110
.118
.126
.133
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.599
.599
.599
.599
.599
.599
.599
.599
.599
.561
.564
.567
.573
.576
.576
.576
.576
.576
.576
.638
.638
.638
.638
.638
.638
.638
.638
.638
.598
.602
.605
.611
.614
.614
.614
.614
.614
.614
.678
.678
.678
.678
.678
.678
.678
.678
.678
.636
.639
.643
.649
.653
.653
.653
.653
.653
.653
QXX HYDRAULIC ROLLERS
The QXX Series lobe profiles are based off of the QXI series but are even more stable, have slightly less lobe lift and are softer off the seat for either exhaust
lobe use or as intakes in even higher engine speed applications. Designed for both street and racing use, these lobes were developed in two degree intervals
to allow small tuning variations between the long and short runners of single 4bbl type manifolds.
CAMSHAFT TYPE
QXX
Rated Duration @
.006" Tappet Lift
Journal = S,B,F,R…
MI 28.1 (13.7/14.4)
LOBE #
RATED
DURATION
13470
13471
13472
13473
13474
13475
13476
13477
13478
13479
13480
13481
13482
13483
13484
13485
277
279
281
283
285
287
289
291
293
295
297
299
301
303
305
307
DURATION IN DEGREES
@ .050
@ .200
223
225
227
229
231
233
235
237
239
241
243
245
247
249
251
253
142
144
146
148
150
152
154
156
158
160
162
164
166
168
170
172
LOBE LIFT
.363
.365
.367
.369
.371
.373
.375
.377
.379
.381
.383
.385
.387
.388
.389
.389
TAPPET LIFT @ TDC
106°
110°
.066
.070
.073
.076
.080
.083
.087
.090
.094
.098
.101
.105
.109
.113
.117
.121
.054
.057
.060
.063
.066
.070
.073
.076
.080
.083
.087
.090
.094
.098
.101
.105
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.545
.548
.551
.554
.557
.560
.563
.566
.569
.572
.575
.578
.581
.582
.584
.584
.581
.584
.587
.590
.594
.597
.600
.603
.606
.610
.613
.616
.619
.621
.622
.622
.617
.621
.624
.627
.631
.634
.638
.641
.644
.648
.651
.655
.658
.660
.661
.661
Continued on page 26
HYDRAULIC ROLLER
QXI HYDRAULIC ROLLERS Continued
HYDRAULIC ROLLER
HYDRAULIC ROLLER
QXX HYDRAULIC ROLLERSContinued
CAMSHAFT TYPE
QXX
Rated Duration @
.006" Tappet Lift
Journal = S,B,F,R…
MI 28.1 (13.7/14.4)
LOBE #
RATED
DURATION
13486
13487
13488
13489
13490
13491
13492
309
311
313
315
317
319
321
DURATION IN DEGREES
@ .050
@ .200
255
257
259
261
263
265
267
174
175
177
179
181
183
185
LOBE LIFT
.389
.389
.389
.389
.389
.389
.389
TAPPET LIFT @ TDC
106°
110°
.125
.128
.132
.136
.140
.144
.148
.109
.113
.117
.120
.124
.128
.132
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.584
.584
.584
.584
.584
.584
.584
.622
.622
.622
.622
.622
.622
.622
.661
.661
.661
.661
.661
.661
.661
QNI HYDRAULIC ROLLERS
The QNI series lobe profiles are based off of the QXI series but are softened just enough to grind accurately even with lobe base circle sizes as small as .900"
diameter, as is sometimes required in long stroke Small Block Chevy applications.
CAMSHAFT TYPE
QNI
Rated Duration @
.006" Tappet Lift
Journal = N,I,J…
MI 28.5 (14.0/14.5)
LOBE #
RATED
DURATION
13540
13541
13542
13543
13544
13545
13546
13547
13548
13549
13550
13551
13552
13553
13554
13555
13556
13557
13558
279
281
283
285
287
289
291
293
295
297
299
301
303
305
307
309
311
313
315
DURATION IN DEGREES
@ .050
@ .200
226
228
230
232
234
236
238
240
242
244
246
248
250
252
254
256
258
260
262
147
149
151
153
155
157
159
161
163
165
167
169
170
172
174
176
178
180
182
LOBE LIFT
.384
.386
.388
.390
.392
.394
.396
.397
.398
.398
.398
.398
.398
.398
.398
.398
.398
.398
.398
TAPPET LIFT @ TDC
106°
110°
.071
.075
.078
.082
.085
.089
.092
.096
.100
.104
.108
.112
.115
.119
.123
.127
.131
.135
.139
.059
.062
.065
.068
.072
.075
.078
.082
.085
.089
.092
.096
.100
.104
.108
.111
.115
.119
.123
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.576
.579
.582
.585
.588
.591
.594
.596
.597
.597
.597
.597
.597
.597
.597
.597
.597
.597
.597
.614
.618
.621
.624
.627
.630
.634
.635
.637
.637
.637
.637
.637
.637
.637
.637
.637
.637
.637
.653
.656
.660
.663
.666
.670
.673
.675
.677
.677
.677
.677
.677
.677
.677
.677
.677
.677
.677
COMPCAMS.COM
CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
The QNX Series lobe profiles are based off of the QXX series but are softened just enough to grind accurately even with lobe base circle sizes as small as .900"
diameter as is sometimes required in long stroke Small Block Chevy applications.
CAMSHAFT TYPE
QNX
Rated Duration @
.006" Tappet Lift
Journal = N,I,J…
MI 29.1 (14.2/14.9)
LOBE #
RATED
DURATION
13570
13571
13572
13573
13574
13575
13576
13577
13578
13579
13580
13581
13582
13583
13584
13585
13586
13587
13588
289
291
293
295
297
299
301
303
305
307
309
311
313
315
317
319
321
323
325
DURATION IN DEGREES
@ .050
@ .200
234
236
238
240
242
244
246
248
250
252
254
256
258
260
262
264
266
268
270
153
155
157
159
161
163
165
167
169
171
172
174
176
178
180
182
183
185
187
LOBE LIFT
.374
.376
.378
.380
.382
.384
.386
.387
.388
.388
.388
.388
.388
.388
.388
.388
.388
.388
.388
TAPPET LIFT @ TDC
106°
110°
.084
.087
.091
.094
.098
.101
.105
.109
.113
.116
.120
.124
.128
.132
.136
.140
.143
.147
.151
.070
.074
.077
.080
.084
.087
.091
.094
.098
.101
.105
.109
.113
.116
.120
.124
.128
.132
.135
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.561
.564
.567
.570
.573
.576
.579
.581
.582
.582
.582
.582
.582
.582
.582
.582
.582
.582
.582
.598
.602
.605
.608
.611
.614
.618
.619
.621
.621
.621
.621
.621
.621
.621
.621
.621
.621
.621
.636
.639
.643
.646
.649
.653
.656
.658
.660
.660
.660
.660
.660
.660
.660
.660
.660
.660
.660
XTREME MARINE™ HYDRAULIC ROLLERS
These profiles use the same design techniques of the base Xtreme Energy™ Hydraulic Rollers but have been optimized to increase power and durability when
run at steady RPM for extended periods of time. Specifically designed for Big Blocks with heavier valve train components..
CAMSHAFT TYPE
LOBE #
RATED
DURATION
Xtreme Marine™
Rated Duration @
.006" Tappet Lift
Big Block Journal
Journal = G,I,S,B,R…
MI 28.6 (13.7/15.0)
3354
3355
3356
3357
3358
3359
3362
3363
3364
286
292
298
304
310
316
322
328
334
DURATION IN DEGREES
@ .050
@ .200
230
236
242
248
254
260
266
272
278
142
146
153
159
163
169
174
179
185
LOBE LIFT
.322
.322
.333
.333
.338
.338
.342
.347
.353
TAPPET LIFT @ TDC
106°
110°
.074
.085
.095
.106
.116
.126
.136
.146
.155
.062
.071
.081
.092
.101
.112
.122
.132
.142
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.483
.483
.500
.500
.507
.507
.513
.521
.530
.515
.515
.533
.533
.541
.541
.547
.555
.565
.547
.547
.566
.566
.575
.575
.581
.590
.600
HYDRAULIC ROLLER
QNX HYDRAULIC ROLLERS
HYDRAULIC ROLLER
HYDRAULIC ROLLER
XTREME MARINE™ HYDRAULIC ROLLERS − HIGH LIFT
These have the same ramp designs as the lower lift Xtreme Marine™ designs but have higher lift to enhance power output with cylinder head and engine
modifications.
CAMSHAFT TYPE
Xtreme Marine™
High Lift
Rated Duration @
.006" Tappet Lift
Journal = G,I,S,B,R..
MI 28.6 (13.7/15.0)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
3473
3474
3410
3475
3376
3411
3479
290
292
294
294
296
300
300
234
236
238
238
240
244
244
152
154
154
156
157
159
163
.360
.360
.350
.360
.360
.350
.380
.081
.085
.088
.088
.092
.099
.100
.068
.071
.075
.075
.078
.085
.085
.540
.540
.525
.540
.540
.525
.570
.576
.576
.560
.576
.576
.560
.608
.612
.612
.595
.612
.612
.595
.646
3370
3377
3371
3372
3373
3374
3375
3447
304
306
308
314
318
322
326
330
248
250
254
258
262
266
270
274
167
166
171
175
179
182
186
190
.380
.360
.380
.380
.380
.380
.380
.380
.107
.111
.119
.126
.134
.142
.149
.157
.092
.096
.103
.111
.118
.126
.134
.141
.570
.540
.570
.570
.570
.570
.570
.570
.608
.576
.608
.608
.608
.608
.608
.608
.646
.612
.646
.646
.646
.646
.646
.646
LOBE LIFT
HUC HYDRAULIC ROLLERS
These have the same ramp designs as the lower lift Xtreme Marine™ designs but have higher lift to enhance power output with cylinder head and engine
modifications.
CAMSHAFT TYPE
HUC High Lift
Rated Duration @
.006" Tappet Lift
Journal = S,B,F,R…
MI 28.7 (13.9/14.8)
LOBE #
RATED
DURATION
13033
13034
13037
13045
13046
13047
13048
13050
13051
13052
13053
13054
13055
13056
13057
13058
13059
13360
13361
278
282
282
286
288
290
292
294
298
302
306
310
314
318
322
326
330
334
338
DURATION IN DEGREES
@ .050
@ .200
223
227
227
231
233
235
237
239
243
247
251
255
259
263
267
271
275
279
283
141
145
146
149
152
154
156
158
162
166
169
173
177
181
184
188
191
195
198
LOBE LIFT
.336
.344
.352
.352
.355
.359
.359
.365
.369
.372
.372
.372
.372
.372
.372
.372
.372
.372
.372
TAPPET LIFT @ TDC
106°
110°
.066
.072
.072
.079
.082
.086
.089
.093
.100
.108
.115
.123
.131
.139
.147
.155
.162
.169
.176
.054
.059
.060
.066
.069
.072
.075
.079
.086
.093
.100
.108
.115
.123
.131
.139
.146
.154
.161
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.538
.550
.563
.563
.568
.574
.574
.584
.590
.595
.595
.595
.595
.595
.595
.595
.595
.595
.595
.571
.585
.598
.598
.604
.610
.610
.621
.627
.632
.632
.632
.632
.632
.632
.632
.632
.632
.632
.605
.619
.634
.634
.639
.646
.646
.657
.664
.670
.670
.670
.670
.670
.670
.670
.670
.670
.670
Continued on page 29
COMPCAMS.COM
CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
CAMSHAFT TYPE
LOBE #
RATED
DURATION
HUC High Lift
Rated Duration @
.006" Tappet Lift
13861
13862
13863
13064
13065
13066
13067
13068
13069
13074
13075
Journal = S,B,F,R…
MI 28.7 (13.9/14.8)
DURATION IN DEGREES
@ .050
@ .200
298
302
306
310
314
318
322
326
330
243
247
251
255
259
263
267
271
275
163
167
171
175
179
183
187
190
194
334
338
279
283
198
202
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
106°
110°
.392
.396
.400
.400
.400
.400
.400
.400
.400
.100
.108
.116
.124
.132
.140
.148
.156
.164
.086
.093
.100
.108
.116
.124
.132
.140
.148
.627
.634
.640
.640
.640
.640
.640
.640
.640
.666
.673
.680
.680
.680
.680
.680
.680
.680
.706
.713
.720
.720
.720
.720
.720
.720
.720
.400
.400
.172
.180
.156
.164
.640
.640
.680
.680
.720
.720
XTREME RPM FOR LS1
Designed with Xtreme Energy™ technology to provide excellent power with the LS1’s enhanced cylinder head design and high RPM performance. These
provide outstanding low RPM torque with increased stability when coupled with the LS1’s larger base circle and 1.7:1+ rocker ratios. High lift versions are
excellent for use with improved heads, manifolds and COMP #26915 and #26918 valve springs.
CAMSHAFT TYPE
Xtreme RPM for LS1
Rated Duration @
.006" Tappet Lift
Journal = I,S,B,R…
MI 27.8 (13.9/13.9)
Xtreme RPM for LS1
High Lift
Rated Duration @
.006" Tappet Lift
Journal = S,B,F,R…
MI 27.8 (13.9/13.9)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
3750
3751
3766
3752
3767
3753
3754
3755
3735
3756
3757
3659
260
266
270
272
274
278
280
282
284
286
290
309
206
212
216
218
220
224
226
228
230
232
236
256
121
126
130
132
134
137
139
141
142
144
147
166
.302
.306
.308
.310
.312
.314
.315
.316
.317
.318
.320
.325
.043
.051
.056
.059
.062
.069
.072
.075
.078
.082
.088
.123
.034
.040
.045
.048
.051
.056
.059
.062
.065
.069
.075
.109
.453
.459
.462
.465
.468
.471
.473
.474
.476
.477
.480
.488
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
261
263
265
267
269
271
273
275
277
279
281
283
285
208
210
212
214
216
218
220
222
224
226
228
230
232
128
129
131
133
135
136
138
140
142
143
145
147
148
.326
.327
.328
.329
.330
.331
.332
.333
.334
.335
.336
.337
.338
.045
.048
.051
.054
.056
.059
.062
.066
.069
.072
.075
.079
.082
.036
.039
.041
.043
.045
.048
.051
.054
.056
.059
.062
.066
.069
.489
.491
.492
.494
.495
.497
.498
.500
.501
.503
.504
.506
.507
LOBE LIFT
.483
.490
.493
.496
.499
.502
.504
.506
.507
.509
.512
.520
.513
.520
.524
.527
.530
.534
.536
.537
.539
.541
.544
.553
.522
.554
.523
.556
.525
.558
.526
.559
.528
.561
.530
.563
.531
.564
.533
.566
.534
.568
.536
.570
.538
.571
.539
.573
.541
.575
Continued on page 30
HYDRAULIC ROLLER
HUC HYDRAULIC ROLLERS Continued
HYDRAULIC ROLLER
HYDRAULIC ROLLER
XTREME RPM FOR LS1 Continued
CAMSHAFT TYPE
Xtreme RPM for LS1
High Lift
Rated Duration @
.006" Tappet Lift
Journal = S,B,F,R…
MI 27.8 (13.9/13.9)
LOBE #
RATED
DURATION
3706
3705
3652
3653
3654
3655
3656
3657
3658
3660
3661
3662
3663
3666
3667
3668
287
289
291
293
295
297
299
301
303
305
307
309
311
315
319
323
DURATION IN DEGREES
@ .050
@ .200
234
236
238
240
242
244
246
248
250
252
254
256
258
262
266
270
150
152
154
156
158
160
162
164
166
168
169
170
172
174
177
180
LOBE LIFT
.339
.340
.344
.346
.348
.350
.350
.350
.350
.350
.350
.350
.350
.350
.350
.350
TAPPET LIFT @ TDC
106°
110°
.086
.089
.093
.096
.100
.103
.107
.111
.114
.118
.122
.125
.129
.135
.141
.147
.072
.075
.079
.082
.085
.089
.092
.097
.100
.103
.107
.110
.114
.120
.127
.133
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.509
.510
.516
.519
.522
.525
.525
.525
.525
.525
.525
.525
.525
.525
.525
.525
.542
.544
.550
.554
.557
.560
.560
.560
.560
.560
.560
.560
.560
.560
.560
.560
.576
.578
.585
.588
.592
.595
.595
.595
.595
.595
.595
.595
.595
.595
.595
.595
XTREME RPR HYDRAULIC ROLLERS
These profiles use the Xtreme RPM opening with the faster XE-R style closing. These should be stable to higher RPM than the XE-R and the controlled opening
rates may work well in some applications.
CAMSHAFT TYPE
Xtreme RPR
Rated Duration @
.006" Tappet Lift
Journal = B,F,R,Q…
MI 27.1 (13.9/13.2)
LOBE #
RATED
DURATION
3669
3670
3671
3672
3673
3674
3675
3676
269
271
273
275
277
279
281
283
DURATION IN DEGREES
@ .050
@ .200
217
219
221
223
225
227
229
231
137
139
140
142
144
145
147
149
LOBE LIFT
.331
.332
.333
.334
.335
.336
.337
.338
TAPPET LIFT @ TDC
106°
110°
.059
.062
.066
.069
.072
.075
.079
.082
.048
.051
.054
.056
.059
.062
.066
.069
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.497
.498
.500
.501
.503
.504
.506
.507
.530
.531
.533
.534
.536
.538
.539
.541
.563
.564
.566
.568
.570
.571
.573
.575
XTREME ENERGY™ XE-R FOR LS1
The XE-R designs are the most aggressive COMP Cams® hydraulic roller ramps to date. They are quicker off and on the seat than the original Xtreme Energy™
Series, yet they are still stable with rigid valve train and optimized spring selection. These profiles provide even more area than the comparable Small Block
Chevrolet designs that are often used by other companies to "grow" a more aggressive lobe for LS1 applications.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
XE-R for LS1
Rated Duration @
.006" Tappet Lift
LS1 55mm Journal
Journal = B,F,R,Q…
MI 25.9 (12.7/13.2)
3720
3721
3722
3723
3724
269
271
273
275
277
DURATION IN DEGREES
@ .050
@ .200
220
222
224
226
228
143
144
146
147
149
LOBE LIFT
.342
.342
.342
.344
.346
TAPPET LIFT @ TDC
106°
110°
.062
.065
.069
.073
.076
.049
.052
.055
.059
.062
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.513
.513
.513
.516
.519
.547
.547
.547
.550
.554
.581
.581
.581
.585
.588
Continued on page 31
COMPCAMS.COM
CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
CAMSHAFT TYPE
LOBE #
RATED
DURATION
XE-R for LS1
Rated Duration @
.006" Tappet Lift
LS1 55mm Journal
Journal = B,F,R,Q…
MI 25.9 (12.7/13.2)
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
279
281
283
285
287
289
291
293
295
297
DURATION IN DEGREES
@ .050
@ .200
230
232
234
236
238
240
242
244
246
248
151
153
155
157
159
161
163
165
167
169
LOBE LIFT
.348
.350
.352
.354
.356
.358
.359
.360
.361
.362
TAPPET LIFT @ TDC
106°
110°
.080
.083
.087
.091
.095
.099
.102
.106
.110
.114
.065
.069
.072
.076
.079
.083
.087
.091
.095
.098
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.522
.525
.528
.531
.534
.537
.539
.540
.542
.543
.557
.560
.563
.566
.570
.573
.574
.576
.578
.579
.592
.595
.598
.602
.605
.609
.610
.612
.614
.615
XTREME ENERGY™ LSL HYDRAULIC ROLLERS FOR LS1
The LSL Series has been designed with enhanced characteristics from our latest professional drag racing profiles. These have excellent ramp quickness but
are designed in a way to improve stability over other designs with such short seat timing. The increased lift works well with the latest Gen III and LS cylinder
head port designs by providing excellent area above 1/2" valve lift.
CAMSHAFT TYPE
LSL for LS1
Rated Duration @
.006" Tappet Lift
Journal = F,R,Q…
MI 26.0 (12.8/13.2)
LOBE #
RATED
DURATION
13013
13093
13014
13094
13015
13095
13016
13096
13017
13097
13018
13041
13019
13099
13020
13230
13021
13231
13022
13232
13023
13233
13024
13234
13025
13235
261
263
265
267
269
271
273
275
277
279
281
283
285
287
289
291
293
295
297
299
301
303
305
307
309
311
DURATION IN DEGREES
@ .050
@ .200
211
213
215
217
219
221
223
225
227
229
231
233
235
237
239
241
243
245
247
249
251
253
255
257
259
261
135
137
139
141
143
145
147
149
151
152
154
156
158
160
162
164
166
167
169
171
173
174
176
178
180
181
LOBE LIFT
.353
.354
.355
.356
.357
.358
.359
.360
.361
.362
.363
.364
.365
.366
.367
.367
.367
.367
.367
.367
.367
.367
.367
.367
.367
.367
TAPPET LIFT @ TDC
106°
110°
.048
.051
.054
.057
.060
.064
.067
.071
.074
.078
.081
.085
.089
.093
.096
.101
.105
.109
.113
.117
.121
.125
.129
.133
.137
.141
.037
.040
.042
.045
.048
.051
.054
.057
.060
.064
.067
.071
.074
.078
.081
.085
.089
.093
.097
.101
.105
.109
.113
.117
.121
.125
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.565
.566
.568
.570
.571
.573
.574
.576
.578
.579
.581
.582
.584
.586
.587
.587
.587
.587
.587
.587
.587
.587
.587
.587
.587
.587
.600
.602
.604
.605
.607
.609
.610
.612
.614
.615
.617
.619
.621
.622
.624
.624
.624
.624
.624
.624
.624
.624
.624
.624
.624
.624
.635
.637
.639
.641
.643
.644
.646
.648
.650
.652
.653
.655
.657
.659
.661
.661
.661
.661
.661
.661
.661
.661
.661
.661
.661
.661
Continued on page 32
HYDRAULIC ROLLER
XTREME ENERGY™ XE-R FOR LS1 Continued
HYDRAULIC ROLLER
HYDRAULIC ROLLER
XTREME ENERGY™ LSL HYDRAULIC ROLLERS FOR LS1 Continued
CAMSHAFT TYPE
LSL for LS1
Rated Duration @
.006" Tappet Lift
Journal = F,R,Q…
MI 26.0 (12.8/13.2)
LSL 1.8 VM
Rated Duration @
.006" Tappet Lift
LSL LL
Rated Duration @
.006" Tappet Lift
LOBE #
RATED
DURATION
13026
13236
13027
13237
13028
13238
13029
DURATION IN DEGREES
@ .050
@ .200
313
315
317
319
321
323
325
263
265
267
269
271
273
275
183
185
187
188
190
192
193
13123
260
209
13125
268
13321
13322
13323
13324
13325
13326
293
297
301
305
309
313
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
106°
110°
.367
.367
.367
.367
.367
.367
.367
.145
.149
.153
.156
.160
.163
.167
.129
.133
.137
.141
.144
.148
.151
.587
.587
.587
.587
.587
.587
.587
.624
.624
.624
.624
.624
.624
.624
.661
.661
.661
.661
.661
.661
.661
130
.333
.045
.035
.533
.566
.599
217
137
.337
.057
.045
.539
.573
.607
243
247
251
255
259
263
163
167
170
174
177
181
.350
.350
.350
.350
.350
.350
.104
.112
.120
.127
.135
.143
.089
.096
.104
.111
.119
.127
.560
.560
.560
.560
.560
.560
.595
.595
.595
.595
.595
.595
.630
.630
.630
.630
.630
.630
XTREME ENERGY™ LSG HYDRAULIC ROLLERS FOR LS1
The LSG series is based of the LSL but with slightly softer ramps and less lift. Can be quieter and more stable at high engine speeds or with 1.8:1 ratios than
the LSL base profiles.
CAMSHAFT TYPE
LSG for LS1
Rated Duration @
.006" Tappet Lift
Journal = F,R,Q…
MI 25.8 (12.7/13.1)
LOBE #
RATED
DURATION
13115
13116
13117
13118
13119
13120
13121
13122
267
271
275
279
283
287
291
295
DURATION IN DEGREES
@ .050
@ .200
218
222
226
230
234
238
242
246
140
144
148
151
155
159
162
166
LOBE LIFT
.350
.351
.352
.353
.354
.355
.356
.357
TAPPET LIFT @ TDC
106°
110°
.057
.064
.071
.078
.086
.093
.101
.109
.045
.051
.058
.064
.071
.078
.086
.093
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.560
.562
.563
.565
.566
.568
.570
.571
.595
.597
.598
.600
.602
.604
.605
.607
.630
.632
.634
.635
.637
.639
.641
.643
COMPCAMS.COM
CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
The LXL Series is based off the popular LSL profiles but are optimized with lower acceleration and a softer closing ramp for less valve train noise and better
stability with higher (1.8:1+) ratio rocker arms. These profiles are an excellent choice on the exhaust when used with an LSL intake and perform well for
both the intake and exhaust when used in either LS7 or other high ratio applications. These also are a great choice for road race type engines that require
extended use at high engine speeds.
CAMSHAFT TYPE
LXL for LS1
Rated Duration @
.006" Tappet Lift
Journal = B,F,R,Q…
MI 26.9 (13.1/13.8)
LOBE #
RATED
DURATION
13155
13156
13157
13172
13158
13173
13159
13174
13160
13175
13161
13176
13162
13262
13163
13263
13164
13264
13165
13265
13166
13266
13167
13267
13168
13268
13169
13269
13170
266
270
274
276
278
280
282
284
286
288
290
292
294
296
298
300
302
304
306
308
310
312
314
316
318
320
322
324
326
DURATION IN DEGREES
@ .050
@ .200
214
218
222
224
226
228
230
232
234
236
238
240
242
244
246
248
250
252
254
256
258
260
262
264
266
268
270
272
274
136
139
143
145
147
149
151
153
155
157
159
161
162
164
166
168
170
171
173
174
176
178
179
181
182
184
186
187
189
LOBE LIFT
.350
.352
.354
.355
.356
.357
.358
.359
.360
.361
.362
.362
.362
.362
.362
.362
.362
.362
.362
.362
.362
.362
.362
.362
.362
.362
.362
.362
.362
TAPPET LIFT @ TDC
106°
110°
.053
.059
.065
.068
.072
.075
.079
.082
.086
.090
.094
.097
.101
.105
.109
.113
.117
.121
.124
.128
.132
.136
.139
.143
.146
.150
.153
.157
.160
.042
.047
.053
.056
.059
.062
.065
.068
.072
.075
.079
.082
.086
.090
.093
.097
.101
.105
.109
.112
.116
.120
.124
.127
.131
.135
.138
.142
.145
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.560
.563
.566
.568
.570
.571
.573
.574
.576
.578
.579
.579
.579
.579
.579
.579
.579
.579
.579
.579
.579
.579
.579
.579
.579
.579
.579
.579
.579
.595
.598
.602
.604
.605
.607
.609
.610
.612
.614
.615
.615
.615
.615
.615
.615
.615
.615
.615
.615
.615
.615
.615
.615
.615
.615
.615
.615
.615
.630
.634
.637
.639
.641
.643
.644
.646
.648
.650
.652
.652
.652
.652
.652
.652
.652
.652
.652
.652
.652
.652
.652
.652
.652
.652
.652
.652
.652
HYDRAULIC ROLLER
XTREME ENERGY™ LXL HYDRAULIC ROLLERS FOR LS1
HYDRAULIC ROLLER
HYDRAULIC ROLLER
XTREME ENERGY™ LSK HYDRAULIC ROLLERS FOR LS1
The LSK Series has been designed with enhanced characteristics from our latest professional drag racing profiles. These have excellent ramp quickness.
They are VERY hard on parts and not generally recommended in street applications!
CAMSHAFT TYPE
LSK for LS1
Rated Duration @
.006" Tappet Lift
Journal = B,F,R,Q…
MI 26.6 (13.1/13.5)
LOBE #
RATED
DURATION
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
265
269
273
277
281
285
289
293
297
301
305
309
313
DURATION IN DEGREES
@ .050
@ .200
215
219
223
227
231
235
239
243
247
251
255
259
263
142
145
149
153
156
160
164
168
171
175
179
183
186
LOBE LIFT
.370
.372
.374
.376
.378
.380
.382
.384
.386
.388
.390
.390
.390
TAPPET LIFT @ TDC
106°
110°
.054
.060
.066
.074
.081
.089
.096
.104
.113
.121
.130
.138
.146
.042
.048
.054
.060
.067
.074
.081
.089
.096
.104
.113
.121
.129
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.592
.595
.598
.602
.605
.608
.611
.614
.618
.621
.624
.624
.624
.629
.632
.636
.639
.643
.646
.649
.653
.656
.660
.663
.663
.663
.666
.670
.673
.677
.680
.684
.688
.691
.695
.698
.702
.702
.702
XTREME ENERGY™ VVI HYDRAULIC ROLLERS
The VVI Series is based off the popular LSL profiles but are optimized for increase piston to valve clearance and more allowable advance in variable valve
timing applications (GM LS and Dodge Hemi). These are intended as intake lobes and result in approximately .008" more tappet clearance at TDC compared
to a 1° larger LSL profile or about the same clearance as a 5° smaller LSL design.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
Xtreme Energy™ VVI
Rated Duration @
.006" Tappet Lift
Journal = R,Q…
MI 25.3 (12.5/12.8)
13180
13181
13182
13183
13184
258
262
266
270
274
DURATION IN DEGREES
@ .050
@ .200
210
214
218
222
226
133
137
141
145
149
LOBE LIFT
.356
.358
.360
.362
.364
TAPPET LIFT @ TDC
106°
110°
.041
.046
.052
.058
.065
.030
.035
.040
.046
.052
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.570
.573
.576
.579
.582
.605
.609
.612
.615
.619
.641
.644
.648
.652
.655
COMPCAMS.COM
CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
These two series are designed for GM LS applications with Displacement on Demand. Because of extra travel of the deactivation lifter seat before it locks in
lock mode, these profiles must be designed differently than the non-cylinder deactivation lobes. The result is that the LSD "Deac" profiles look more like solid
lifter profiles as that motion is akin to about .005" lash at the tappet. The LSN "non-Deac" profiles are more like standard hydraulic roller designs at the seat
but matched to the LSN profiles over the nose. Note: Cylinders 1-4-6-7 are the "Deac" or Deactivation cylinders and 2-3-5-6 are the "non-Deac" cylinders.
CAMSHAFT TYPE
LSN (Non-Deac Cyls)
Rated Duration @
.006" Tappet Lift
55mm Journal .7756"
BCR
MI 26.7 (13.1/13.6)
LSN (Non-Deac)
Rated Duration @
.006" Tappet Lift
55mm Journal .750"
BCR
MI 26.7 (13.1/13.6)
LSD (Deac Cyls)
Rated Duration @
.006" Tappet Lift
55mm Journal .7756"
BCR
MI 29.0 (13.9/15.1)
LSD (Deac Cyls)
Rated Duration @
.006" Tappet Lift
55mm Journal .750"
BCR
MI 29.0 (13.9/15.1)
LOBE #
RATED
DURATION
13299
13300
13301
13302
13303
DURATION IN DEGREES
@ .050
@ .200
258
262
266
270
274
206
210
214
218
222
119
123
126
130
133
13304
13305
13306
13307
278
282
286
290
226
230
234
238
13330
13331
13332
13333
13334
13335
262
266
270
274
278
282
13310
13311
13312
13313
13314
13315
13316
13317
13318
13340
13341
13342
13343
13344
13345
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
106°
110°
.294
.294
.294
.294
.294
.042
.047
.053
.059
.065
.031
.037
.042
.048
.053
.470
.470
.470
.470
.470
.500
.500
.500
.500
.500
.529
.529
.529
.529
.529
137
140
144
147
.294
.294
.294
.294
.072
.079
.086
.092
.059
.065
.072
.079
.470
.470
.470
.470
.500
.500
.500
.500
.529
.529
.529
.529
210
214
218
222
226
230
127
130
134
137
140
144
.318
.318
.318
.318
.318
.318
.047
.053
.059
.065
.071
.078
.037
.042
.048
.053
.058
.065
.509
.509
.509
.509
.509
.509
.541
.541
.541
.541
.541
.541
.572
.572
.572
.572
.572
.572
274
278
282
286
290
294
298
302
306
212
216
220
224
228
232
236
240
244
123
127
130
133
137
140
144
147
151
.294
.294
.294
.294
.294
.294
.294
.294
.294
.047
.053
.059
.065
.072
.079
.086
.092
.099
.037
.042
.048
.053
.059
.065
.072
.079
.085
.470
.470
.470
.470
.470
.470
.470
.470
.470
.500
.500
.500
.500
.500
.500
.500
.500
.500
.529
.529
.529
.529
.529
.529
.529
.529
.529
274
278
282
286
290
294
212
216
220
224
228
232
127
131
134
137
141
144
.318
.318
.318
.318
.318
.318
.051
.056
.062
.068
.074
.080
.041
.045
.051
.056
.061
.067
.509
.509
.509
.509
.509
.509
.541
.541
.541
.541
.541
.541
.572
.572
.572
.572
.572
.572
HYDRAULIC ROLLER
LSN & LSD HYDRAULIC ROLLERS FOR DOD
HYDRAULIC ROLLER
HYDRAULIC ROLLER
EHI EHX HYDRAULIC ROLLERS
The EHI (intake) and EHX (exhaust) Series are higher ratio versions of the DHI and DHX hybrid hydraulic/solid roller designs. These are intended for race applications that may see some street use or for other special applications with their primary emphasis on performance without compromise for noise concerns.
27 MAI intake and 30 MAI exhaust. 2.036" Journal MINIMUM.
CAMSHAFT TYPE
EHI
Rated Duration @
.006" Tappet Lift
Journal = F,R,Q,M
MI 26.8 (12.9/13.9)
EHX
Rated Duration @
.006" Tappet Lift
Journal = B,F,R,M
MI 29.8 (14.1/15.7)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
12854
12856
12858
12668
12670
12672
12674
12676
12678
12680
12682
12684
12686
12846
12848
270
274
278
282
286
290
294
298
302
306
310
314
318
322
326
219
223
227
231
235
239
243
247
251
255
259
263
267
271
275
143
147
151
154
158
162
165
169
173
176
180
183
187
190
194
.371
.373
.375
.375
.375
.375
.375
.375
.375
.375
.375
.375
.375
.375
.375
.060
.067
.073
.081
.088
.096
.104
.112
.120
.128
.136
.144
.152
.159
.166
.048
.054
.060
.067
.073
.081
.088
.096
.104
.112
.120
.128
.136
.143
.151
.631
.634
.638
.638
.638
.638
.638
.638
.638
.638
.638
.638
.638
.638
.638
.668
.671
.675
.675
.675
.675
.675
.675
.675
.675
.675
.675
.675
.675
.675
.705
.709
.713
.713
.713
.713
.713
.713
.713
.713
.713
.713
.713
.713
.713
12864
12866
12868
12690
12692
12694
12696
12698
12700
12702
12704
12874
12876
12878
292
296
300
304
308
312
316
320
324
328
332
336
340
344
233
237
241
245
249
253
257
261
265
269
273
277
281
285
153
157
161
164
168
172
176
179
183
186
190
193
197
200
.373
.375
.375
.375
.375
.375
.375
.375
.375
.375
.375
.375
.375
.375
.082
.090
.096
.105
.112
.120
.128
.136
.144
.151
.159
.166
.173
.180
.069
.076
.082
.090
.097
.105
.112
.120
.128
.135
.143
.150
.158
.165
.634
.638
.638
.638
.638
.638
.638
.638
.638
.638
.638
.638
.638
.638
.671
.675
.675
.675
.675
.675
.675
.675
.675
.675
.675
.675
.675
.675
.709
.713
.713
.713
.713
.713
.713
.713
.713
.713
.713
.713
.713
.713
LOBE LIFT
COMPCAMS.COM
CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
HYDRAULIC ROLLER
DHI DHX HYDRAULIC ROLLERS
The DHI (intake) and DHX (exhaust) Series are a hybrid hydraulic or tight lash solid roller design, based primarily on performance without compromise for
noise concerns. These are intended for race applications that may see some street use or for other special applications. 26 MAI intake and 29 MAI exhaust.
55mm Journal MINIMUM.
CAMSHAFT TYPE
DHI
Rated Duration @
.006" Tappet Lift
Journal = R,Q,M…
MI 26.2 (12.6/13.6)
DHX
Rated Duration @
.006" Tappet Lift
Journal = B,F,R,M
MI 29.3 (13.9/15.4)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
13596
13598
12600
12602
12608
12610
267
271
275
279
283
287
217
221
225
229
233
237
144
148
152
156
160
164
.377
.381
.385
.389
.393
.397
.057
.064
.071
.078
.085
.093
.045
.051
.057
.064
.071
.078
.603
.610
.616
.622
.629
.635
.641
.648
.655
.661
.668
.675
.679
.686
.693
.700
.707
.715
12612
12614
12616
12618
12104
12106
12108
12110
12112
13634
13636
13638
13640
13642
291
295
299
303
307
311
315
319
323
327
331
335
339
343
241
245
249
253
257
261
265
269
273
277
281
285
289
293
167
171
175
178
182
186
189
193
197
199
203
206
210
214
.397
.397
.397
.397
.397
.397
.397
.397
.397
.397
.397
.397
.397
.397
.102
.110
.118
.127
.136
.144
.152
.160
.168
.175
.183
.189
.196
.203
.085
.093
.102
.110
.118
.127
.135
.143
.152
.159
.167
.173
.181
.188
.635
.635
.635
.635
.635
.635
.635
.635
.635
.635
.635
.635
.635
.635
.675
.675
.675
.675
.675
.675
.675
.675
.675
.675
.675
.675
.675
.675
.715
.715
.715
.715
.715
.715
.715
.715
.715
.715
.715
.715
.715
.715
13632
12642
12644
12646
12630
12632
12634
12636
12638
12134
12136
12138
12140
12142
13644
13646
13648
13650
13652
289
293
297
301
305
309
313
317
321
325
329
333
337
341
345
349
353
357
361
231
235
239
243
247
251
255
259
263
267
271
275
279
283
287
291
295
299
303
154
158
162
166
170
174
178
182
185
189
193
196
200
204
207
210
214
218
221
.381
.385
.389
.393
.397
.397
.397
.397
.397
.397
.397
.397
.397
.397
.397
.397
.397
.080
.087
.095
.102
.110
.118
.126
.135
.144
.152
.160
.168
.176
.184
.190
.197
.204
.067
.073
.080
.087
.094
.102
.110
.119
.127
.135
.143
.152
.160
.168
.174
.182
.189
.610
.616
.622
.629
.635
.635
.635
.635
.635
.635
.635
.635
.635
.635
.635
.635
.635
.648
.655
.661
.668
.675
.675
.675
.675
.675
.675
.675
.675
.675
.675
.675
.675
.675
.686
.693
.700
.707
.715
.715
.715
.715
.715
.715
.715
.715
.715
.715
.715
.715
.715
.397
.397
.210
.216
.196
.202
.635
.635
.675
.675
.715
.715
LOBE LIFT
HYDRAULIC ROLLER
HYDRAULIC ROLLER
DTL HYDRAULIC ROLLER
The DTL Hydraulic Roller designs are intended for high lift and high RPM with light valves, COMP .750" wheel Sportsman Series Hydraulic Roller Lifters, Dual
Conical Valve Springs and 1.7:1 to 1.8:1 ratios.
CAMSHAFT TYPE
DTL
Rated Duration @
.006"Tappet Lift
Journal = R,Q,M…
MI 26.4 (13.0/13.4)
LOBE #
RATED
DURATION
13976
13978
13980
13982
13984
13986
13988
13990
13992
13994
285
289
293
297
301
305
309
313
317
321
DURATION IN DEGREES
@ .050
@ .200
235
239
243
247
251
255
259
263
267
271
162
166
170
174
177
181
185
189
193
197
LOBE LIFT
.432
.436
.440
.444
.444
.444
.444
.444
.444
.444
TAPPET LIFT @ TDC
106°
110°
.088
.096
.104
.113
.121
.130
.139
.148
.156
.165
.074
.081
.088
.096
.104
.113
.121
.130
.139
.147
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.691
.698
.704
.710
.710
.710
.710
.710
.710
.710
.734
.741
.748
.755
.755
.755
.755
.755
.755
.755
.778
.785
.792
.799
.799
.799
.799
.799
.799
.799
CHEATER HR LIFT RULE COMPETITION HYDRAULIC ROLLERS
The Cheater HR Lift Rule profiles can be run with either hydraulic roller lifters or with solid roller lifters and tight (.010" to .016") lash settings. These are very
popular in Mustang lift rule class racing. These lobes are very aggressive and are "race only" designed lobes.
CAMSHAFT TYPE
Cheater HR Lift Rule
Rated Duration @
.006" Tappet Lift
RACE ONLY!
MI 29.1 (14.2/14.9)
LOBE #
RATED
DURATION
3390
3391
3392
3393
3394
3395
3396
3397
3335
3496
3497
3498
3336
3338
3337
3339
3284
3282
3285
3283
3299
3297
3298
3295
289
291
293
295
297
299
301
303
321
325
327
329
307
311
319
329
307
311
319
323
289
297
305
297
DURATION IN DEGREES
@ .050
@ .200
236
238
240
242
244
246
248
250
268
272
274
276
254
258
266
270
254
258
266
270
236
244
252
244
148
150
152
154
156
158
160
162
180
184
186
188
166
170
178
182
167
171
179
183
150
158
166
159
LOBE LIFT
.312
.312
.312
.312
.312
.312
.312
.312
.312
.312
.312
.312
.316
.316
.316
.316
.323
.323
.323
.323
.329
.329
.329
.334
TAPPET LIFT @ TDC
106°
110°
.085
.088
.091
.095
.098
.102
.105
.109
.142
.149
.153
.157
.116
.123
.138
.146
.116
.124
.139
.146
.085
.098
.113
.099
.072
.075
.078
.081
.085
.088
.091
.095
.127
.134
.138
.142
.102
.109
.123
.139
.102
.109
.124
.131
.072
.085
.098
.085
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.468
.468
.468
.468
.468
.468
.468
.468
.468
.468
.468
.468
.474
.474
.474
.474
.485
.485
.485
.485
.494
.494
.494
.501
.499
.499
.499
.499
.499
.499
.499
.499
.499
.499
.499
.499
.506
.506
.506
.506
.517
.517
.517
.517
.526
.526
.526
.534
.530
.530
.530
.530
.530
.530
.530
.530
.530
.530
.530
.530
.537
.537
.537
.537
.549
.549
.549
.549
.559
.559
.559
.568
Continued on page 39
COMPCAMS.COM
CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
CAMSHAFT TYPE
Cheater HR Lift Rule
Rated Duration @
.006" Tappet Lift
RACE ONLY!
MI 29.1 (14.2/14.9)
LOBE #
RATED
DURATION
3296
3404
3400
3398
3384
3399
3385
3386
3387
3388
3389
3405
3288
3286
3289
3287
301
285
289
293
297
301
305
309
313
317
321
325
307
311
319
323
DURATION IN DEGREES
@ .050
@ .200
248
232
236
240
244
248
252
256
260
264
268
272
254
258
266
270
163
147
151
155
159
163
167
171
175
179
183
187
171
175
183
187
LOBE LIFT
.334
.341
.341
.341
.341
.341
.341
.341
.341
.341
.341
.341
.365
.365
.365
.365
TAPPET LIFT @ TDC
106°
110°
.106
.078
.085
.091
.098
.106
.113
.120
.128
.136
.143
.151
.118
.125
.141
.149
.092
.065
.072
.078
.085
.091
.098
.106
.113
.120
.128
.136
.103
.110
.125
.133
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.501
.512
.512
.512
.512
.512
.512
.512
.512
.512
.512
.512
.548
.548
.548
.548
.534
.546
.546
.546
.546
.546
.546
.546
.546
.546
.546
.546
.584
.584
.584
.584
.568
.580
.580
.580
.580
.580
.580
.580
.580
.580
.580
.580
.621
.621
.621
.621
MUSTANG R LIFT RULE COMPETITION HYDRAULIC ROLLERS
These are very similar to the Cheater HR series but more aggressive off the seat and provide more area.
CAMSHAFT TYPE
Mustang R Lift Rule
Rated Duration @
.006" Tappet Lift
RACE ONLY!
MI 25.9(12.7/13.2)
LOBE #
RATED
DURATION
3329
3330
3331
3332
3333
3334
273
279
285
291
297
303
DURATION IN DEGREES
@ .050
@ .200
224
230
236
242
248
254
140
145
149
153
158
162
LOBE LIFT
.312
.312
.312
.312
.312
.312
TAPPET LIFT @ TDC
106°
110°
.069
.079
.090
.101
.111
.121
.056
.065
.076
.086
.097
.107
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.468
.468
.468
.468
.468
.468
.499
.499
.499
.499
.499
.499
.530
.530
.530
.530
.530
.530
HYDRAULIC ROLLER
CHEATER HR LIFT RULE COMPETITION HYDRAULIC ROLLERS Continued
HYDRAULIC ROLLER
HYDRAULIC ROLLER
ESI ESX STOCKER HYDRAULIC ROLLERS
The ESI/ESX & EKI/EKX lobes are stocker versions of the EHI/EHX designs.
CAMSHAFT TYPE
ESI
Rated Duration @
.006" Tappet Lift
MI 26.8 (12.9/13.9)
ESX
Rated Duration @
.006" Tappet Lift
MI 29.8 (14.1/15.7)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
13196
13600
12926
12688
12689
12655
12656
12657
12658
12927
12706
12708
13686
13688
13690
13692
12916
12917
12918
12919
12920
12923
13751
13752
13754
12710
13696
13698
13700
13702
13704
12718
12712
14700
14702
258
270
318
298
300
302
306
310
314
322
298
282
278
286
294
302
318
322
324
326
328
330
282
286
294
302
314
318
320
324
328
318
310
302
306
207
219
267
247
249
251
255
259
263
271
247
231
224
236
242
250
267
271
273
275
277
279
230
234
242
251
263
267
269
273
277
267
259
251
255
128
142
175
161
163
164
168
172
175
180
161
148
147
154
161
169
188
191
193
195
197
199
151
155
162
172
184
188
190
193
197
188
181
174
178
.326
.342
.297
.306
.306
.306
.306
.306
.306
.306
.314
.323
.353
.353
.353
.353
.354
.354
.354
.354
.354
.354
.363
.363
.363
.363
.363
.363
.364
.364
.364
.367
.378
.390
.390
.042
.060
.143
.110
.114
.177
.125
.132
.139
.150
.110
.801
.072
.086
.101
.117
.153
.158
.164
.168
.171
.175
.078
.086
.101
.120
.144
.152
.156
.164
.171
.153
.137
.120
.128
.032
.048
.129
.095
.099
.102
.110
.117
.124
.136
.095
.664
.058
.072
.086
.101
.137
.142
.148
.152
.156
.160
.065
.072
.086
.104
.128
.136
.140
.148
.155
.137
.120
.104
.112
.522
.547
.475
.490
.490
.490
.490
.490
.490
.490
.502
.517
.565
.565
.565
.565
.566
.566
.566
.566
.566
.566
.581
.581
.581
.581
.581
.581
.582
.582
.582
.587
.605
.624
.624
.554
.581
.505
.520
.520
.520
.520
.520
.520
.520
.534
.549
.600
.600
.600
.600
.602
.602
.602
.602
.602
.602
.617
.617
.617
.617
.617
.617
.619
.619
.619
.624
.643
.663
.663
.587
.616
.535
.551
.551
.551
.551
.551
.551
.551
.565
.581
.635
.635
.635
.635
.637
.637
.637
.637
.637
.637
.653
.653
.653
.653
.653
.653
.655
.655
.655
.661
.680
.702
.702
13011
13197
12711
272
272
312
215
214
253
128
128
169
.306
.309
.343
.056
.054
.119
.045
.043
.490
.494
.520
.525
.551
.556
12719
12773
12720
12729
328
340
344
348
269
281
285
289
185
197
201
205
.345
.354
.354
.354
.150
.173
.180
.188
.104
.135
.158
.166
.173
.549
.552
.566
.566
.566
.583
.587
.602
.602
.602
.617
.621
.637
.637
.637
LOBE LIFT
Continued on page 41
COMPCAMS.COM
CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
CAMSHAFT TYPE
ESX
Rated Duration @
.006" Tappet Lift
MI 29.8 (14.1/15.7)
EKI EKX
Rated Duration @
.006" Tappet Lift
LOBE #
RATED
DURATION
13707
13709
13711
13717
13719
12713
12786
12787
14711
13194
13198
13195
13199
DURATION IN DEGREES
@ .050
@ .200
324
328
332
344
348
324
299
311
328
265
269
273
285
289
265
240
252
269
182
186
190
201
205
183
160
170
188
256
258
271
273
205
207
213
215
126
128
128
130
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
106°
110°
.363
.363
.363
.364
.364
.370
.375
.375
.390
.143
.151
.159
.181
.188
.143
.094
.118
.152
.128
.135
.143
.166
.173
.127
.080
.103
.136
.581
.581
.581
.582
.582
.592
.600
.600
.624
.617
.617
.617
.619
.619
.629
.638
.638
.663
.653
.653
.653
.655
.655
.666
.675
.675
.702
.326
.327
.309
.310
.040
.043
.050
.053
.030
.033
.040
.043
.522
.523
.494
.496
.554
.556
.525
.527
.587
.589
.556
.558
DSI STOCKER HYDRAULIC ROLLERS
The DSI , DJI and DJX lobes are stocker versions of the DHI/DHX designs.
CAMSHAFT TYPE
DSI
Rated Duration @
.006" Tappet Lift
MI 26.2 (12.6/13.6)
DJI DJX
Rated Duration @
.006" Tappet Lift
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
13010
12662
12914
12922
12915
255
279
315
319
319
205
229
265
269
269
128
149
187
191
191
.324
.323
.372
.367
.372
.039
.078
.150
.158
.158
.030
.063
.134
.142
.142
.486
.485
.558
.551
.558
.518
.517
.595
.587
.595
.551
.549
.632
.624
.632
13592
311
260
184
.389
.141
.124
.584
.622
.661
13595
333
274
194
.389
.165
.148
.584
.622
.661
LOBE LIFT
CEI STOCKER HYDRAULIC ROLLERS
CAMSHAFT TYPE
LOBE #
RATED
DURATION
CEI
Rated Duration @
.006" Tappet Lift
13602
271
DURATION IN DEGREES
@ .050
@ .200
219
141
LOBE LIFT
.342
TAPPET LIFT @ TDC
106°
110°
.060
.048
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.547
.581
.616
HYDRAULIC ROLLER
ESI ESX STOCKER HYDRAULIC ROLLERS Continued
HYDRAULIC ROLLER
HYDRAULIC ROLLER
CZK HYDRAULIC ROLLERS
The CZK is a stocker version of the CSZ.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
CZK
Rated Duration @
.020" Tappet Lift
MI 26.3 (12.9/13.4)
13070
13071
13072
12537
262
264
266
280
DURATION IN DEGREES
@ .050
@ .200
213
215
217
228
134
136
138
147
LOBE LIFT
.316
.316
.316
.323
TAPPET LIFT @ TDC
106°
110°
.051
.054
.057
.075
.040
.042
.045
.061
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.474
.474
.474
.485
.506
.506
.506
.517
.537
.537
.537
.549
DSK HYDRAULIC ROLLERS
The DSK is a stocker version of the DSZ.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
DSK
Rated Duration @
.020" Tappet Lift
MI 27.7 (13.4/14.3)
13800
13801
13802
12594
12597
281
283
285
290
302
DURATION IN DEGREES
@ .050
@ .200
254
256
258
262
274
167
169
171
180
192
LOBE LIFT
.306
.306
.306
.323
.323
TAPPET LIFT @ TDC
106°
110°
.122
.126
.130
.139
.163
.107
.111
.115
.123
.148
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.459
.459
.459
.485
.485
.490
.490
.490
.517
.517
.520
.520
.520
.549
.549
FSHR STOCKER HYDRAULIC ROLLER
Very quick hydraulic roller stocker.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
FSH
Rated Duration @
.006" Tappet Lift
MI 24.4 (12.0/12.4)
3576
3577
3578
3579
3580
301
303
305
307
309
256
258
260
262
264
170
172
174
176
178.0000
.292
.292
.292
.292
.292
.129
.133
.137
.140
.144
.114
.118
.122
.126
.129
.438
.438
.438
.438
.438
.467
.467
.467
.467
.467
.496
.496
.496
.496
.496
FSX
Rated Duration @
.006" Tappet Lift
MI 24.5 (12.1/12.4)
3561
298
252
166
.292
.123
.108
.438
.467
.496
FHL
Rated Duration @
.006" Tappet Lift
Q Size
MI 24.0 (11.9/12.1)
3582
3584
3585
3586
3588
279
283
285
287
291
235
239
241
243
247
164
168
170
172
176
.378
.378
.378
.378
.378
.095
.105
.109
.113
.122
.079
.087
.092
.096
.104
.567
.567
.567
.567
.567
.605
.605
.605
.605
.605
.643
.643
.643
.643
.643
LOBE LIFT
COMPCAMS.COM
CAM HELP® 1.800.999.0853
HYDRAULIC ROLLER
Designed to maximize torque, acceleration and throttle response for V-twins while providing excellent high RPM horsepower. A faster valve opening increases
engine vacuum and enhances throttle response, providing improved roll on power. Special closing ramps close the valve sooner, providing more cylinder
pressure and torque without resulting in excessive valve train noise. The faster Xtreme Energy™ ramps achieve maximum velocity sooner, increasing the area
under the lift curve and providing maximum airflow and horsepower.
CAMSHAFT TYPE
Xtreme Energy™ Harley
Rated Duration @
.053" Tappet Lift
MI 30.2 (14.8/15.4)
LOBE #
3822
3809
3810
3823
3832
3824
3833
3825
3834
3826
3816
3835
3827
3817
3818
3819
DURATION IN DEGREES
@ .053
@ .200
228
230
236
236
244
244
252
252
260
260
264
268
268
268
272
276
148
147
153
155
160
162
167
169
174
176
180
181
183
183
187
191
LOBE LIFT
.360
.346
.350
.360
.350
.360
.350
.360
.350
.360
.370
.350
.360
.370
.370
.370
TAPPET LIFT @ TDC
98°
102°
106°
.103
.106
.117
.118
.134
.134
.149
.149
.161
.163
.170
.174
.176
.177
.184
.191
.089
.091
.102
.103
.118
.118
.132
.132
.146
.147
.156
.160
.162
.162
.170
.176
.076
.079
.088
.089
.103
.103
.118
.118
.131
.133
.140
.146
.147
.147
.155
.162
THEORETICAL VALVE LIFT
ROCKER RATIO
1.625
1.65
.585
.562
.569
.585
.569
.585
.569
.585
.569
.585
.601
.569
.585
.601
.601
.601
.594
.571
.578
.594
.578
.594
.578
.594
.578
.594
.611
.578
.594
.611
.611
.611
HYDRAULIC ROLLER
XTREME ENERGY™ HARLEY HYDRAULIC ROLLERS
SOLID FLAT TAPPET
SOLID FLAT TAPPET
HIGH ENERGY™ & MAGNUM SOLIDS
The High Energy™ Solid is the mechanical version of the High Energy™ Hydraulic. Because these designs incorporate a mechanical (solid) lifter, the valve actuation is quicker than the High Energy™ Hydraulics, thus producing slightly more power than its hydraulic counterpart. The Magnum Solid Lifter Series is designed
to allow the valve lash to be varied from .015" to .030". This tuning tool can be used to fine tune any high performance application to a razor sharp edge.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
High Energy™
Rated Duration @
.015" Tappet Lift
.842" Min. Dia.
5190
6114
6038
240-3
244-3
264-1
190
200
220
104
108
130
.2660
.2660
.2933
.031
.031
.062
.023
.023
.050
.399
.399
.440
.426
.426
.469
.452
.452
.499
Magnum
Rated Duration @
.015" Tappet Lift
.842" Min. Dia.
MI 37.6 (19.1/18.5)
6017
6002
6007
6003
270-3
282-2
294-3
306-5
224
236
248
260
135
145
154
164
.3120
.3300
.3500
.3700
.064
.082
.096
.119
.054
.069
.084
.100
.468
.495
.525
.555
.499
.528
.560
.592
.530
.561
.595
.629
LOBE LIFT
NEW NOSTALGIA PLUS™ SOLIDS
These lobes are designed to mimic the sound of the great engines of the past while improving performance by applying today’s design techniques. The solid
lifter design allows more precise valve control and allows further tuning through lash adjustment. When lashed at .015" these designs provide that distinct
metallic, mechanical sound made famous by the most powerful of the great factory muscle cars.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
New Nostalgia Plus™
Rated Duration @
.015" Tappet Lift
.842" Min. Dia.
MI 28.8 (13.8/15.0)
6068
6069
6070
6071
276
283
284
291
DURATION IN DEGREES
@ .050
@ .200
239
246
247
254
149
155
158
164
LOBE LIFT
.320
.317
.336
.332
TAPPET LIFT @ TDC
106°
110°
.094
.104
.108
.118
.080
.090
.094
.104
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.480
.476
.504
.498
.512
.507
.538
.531
.544
.539
.571
.564
XTREME ENERGY™ SOLIDS
The Xtreme Energy™ Solids are designed with similar characteristics to the Xtreme Energy™ Hydraulics to maximize torque, acceleration and throttle response
while providing even more high RPM horsepower by taking advantage of the increased stability of a solid design. The Xtreme Energy™ Solids have ramps that
provide shorter seat timing than all but the most aggressive race solids but feature a special closing section to eliminate excessive noise.
CAMSHAFT TYPE
Xtreme Energy™
Rated Duration @
.015" Tappet Lift
.842" Min. Dia.
MI 28.8 (13.8/15.0)
LOBE #
RATED
DURATION
6052
6083
6053
6084
6054
6055
6056
6057
6089
6059
6091
6061
256
262
262
268
268
274
280
282
290
290
298
298
DURATION IN DEGREES
@ .050
@ .200
218
224
224
230
230
236
242
244
252
252
260
260
129
135
135
140
141
147
153
156
164
164
171
172
LOBE LIFT
.311
.313
.319
.313
.326
.335
.341
.347
.352
.361
.352
.373
TAPPET LIFT @ TDC
106°
110°
.057
.067
.067
.077
.077
.087
.097
.101
.115
.115
.129
.129
.046
.054
.054
.064
.064
.073
.083
.087
.101
.101
.155
.155
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.467
.470
.479
.470
.489
.503
.512
.521
.528
.542
.528
.560
.498
.501
.510
.501
.522
.536
.546
.555
.563
.578
.563
.597
.529
.532
.542
.532
.554
.570
.580
.590
.598
.614
.598
.634
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
The Thumpr™ lobe profiles are designed to optimize the character and sound, while providing excellent stability and a very wide power range in solid flat tappet
applications. Specific profiles are developed uniquely for the intake and exhaust.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
Thumpr Int.
Rated Duration @
.015" Tappet Lift
.842" Min. Dia.
MI 28.9 (13.3/15.6)
6440
Thumpr™ Exh.
Rated Duration @
.015" Tappet Lift
.842" Min. Dia.
MI 32.0 (13.3/18.7)
™
DURATION IN DEGREES
@ .050
@ .200
268
231
140
6442
276
239
6444
284
6455
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
106°
110°
.319
.079
.066
.479
.510
.542
148
.326
.092
.079
.489
.522
.554
247
156
.333
.106
.092
.500
.533
.566
287
245
152
.313
.101
.088
.470
.501
.532
6457
295
253
160
.320
.115
.101
.480
.512
.544
6459
303
261
168
.327
.128
.115
.491
.523
.556
HIGH TORQUE SOLIDS
The High Torque Solid is designed to be used on .842" or larger tappet diameters. These are our most winning, all around solid designs. Tappet acceleration
rates are high to produce maximum torque vs. horsepower in an all out racing engine. Works well as exhaust when coupled with TL or XTQ intake designs.
CAMSHAFT TYPE
High Torque
Rated Duration @
.020" Tappet Lift
.842" Min. Dia.
.018" Lash
MI 36.9 (18.4/18.5)
LOBE #
RATED
DURATION
6015
6001
6014
6016
6009
6018
6000
6010
6004
6011
6005
270-1
280-1
285-1
290-1
295-1
300-1
305-1
310-1
310-2
320-1
320-2
DURATION IN DEGREES
@ .050
@ .200
235
242
250
255
260
265
270
275
270
283
280
144
152
156
160
164
169
175
177
175
184
182
LOBE LIFT
.330
.338
.355
.360
.370
.375
.385
.390
.375
.392
.375
TAPPET LIFT @ TDC
106°
110°
.082
.094
.104
.111
.119
.126
.136
.142
.143
.163
.156
.068
.080
.092
.098
.100
.113
.123
.129
.129
.149
.142
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.495
.507
.533
.540
.555
.563
.578
.585
.563
.588
.563
.528
.541
.568
.576
.592
.600
.616
.624
.600
.627
.600
.561
.575
.604
.612
.629
.638
.655
.663
.638
.666
.638
HIGH RPM SOLIDS
These designs are to be used primarily on motors with 1.7 or greater rocker ratios. Design rates have been carefully chosen to allow these designs to run higher
engine speeds than their high torque counterparts.
CAMSHAFT TYPE
High RPM
Rated Duration @
.020" Tappet Lift
.842" Min. Dia.
.018" Lash
MI 37.6 (17.9/19.7)
LOBE #
RATED
DURATION
6019
6012
6013
6006
6027
6028
6029
284-1
294-1
304-1
314-1
324-1
328-3
334-2
DURATION IN DEGREES
@ .050
@ .200
246
256
266
276
286
290
296
152
162
172
182
191
184
200
LOBE LIFT
.326
.341
.356
.371
.386
.400
.400
TAPPET LIFT @ TDC
106°
110°
.097
.114
.131
.148
.165
.168
.182
.083
.100
.117
.134
.151
.154
.168
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.489
.512
.534
.557
.579
.600
.600
.522
.546
.570
.594
.618
.640
.640
.554
.580
.605
.631
.656
.680
.680
SOLID FLAT TAPPET
THUMPR™ SOLIDS
SOLID FLAT TAPPET
SOLID FLAT TAPPET
HI-TECH™ SOLIDS
These designs represent an excellent mix of horsepower, torque, RPM and durability. They work with .842" or larger diameter tappets, producing very good
results. These have been used successfully in everything from Sprint Cup and endurance applications to drag racing and hobby stocks.
CAMSHAFT TYPE
Hi-Tech™
Rated Duration @
.020" Tappet Lift
.842" Min. Dia.
.018" Lash
MI 38.2 (19.1/19.1)
LOBE #
RATED
DURATION
6030
6031
6032
6033
6034
6035
6036
300-4
304-4
308-4
312-4
316-4
320-4
324-4
DURATION IN DEGREES
@ .050
@ .200
262
266
270
274
278
282
286
166
170
174
177
181
186
192
LOBE LIFT
.365
.370
.375
.380
.385
.390
.400
TAPPET LIFT @ TDC
106°
110°
.121
.128
.134
.140
.147
.154
.163
.108
.114
.120
.127
.133
.140
.149
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.548
.555
.563
.570
.578
.585
.600
.584
.592
.600
.608
.616
.624
.640
.621
.629
.638
.646
.655
.663
.680
TIGHT LASH SOLIDS
The designs for the tight lash solid .842" diameter lifters feature shorter seat timing and more area than other similar designs. Good in restricted or open rules
circle track racing. The larger designs perform very well in drag racing.
CAMSHAFT TYPE
Tight Lash
Rated Duration @
.020" Tappet Lift
.842" Min. Dia.
.018" Lash
MI 28.1 (13.4/14.7)
LOBE #
RATED
DURATION
6312
6313
6314
6301
6302
6303
6304
6305
6306
6307
6308
6310
TL264
TL268
TL272
TL276
TL280
TL284
TL288
TL292
TL296
TL300
TL304
TL312
DURATION IN DEGREES
@ .050
@ .200
234
238
242
246
250
254
259
262
266
270
274
282
143
147
151
154
158
162
166
169
173
177
181
191
LOBE LIFT
.3300
.3350
.3400
.3476
.3534
.3600
.3667
.3734
.3800
.3867
.3934
.4067
TAPPET LIFT @ TDC
106°
110°
.083
.089
.096
.102
.109
.114
.121
.127
.133
.139
.143
.162
.070
.077
.083
.089
.095
.101
.108
.113
.119
.125
.130
.148
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.495
.503
.510
.521
.530
.540
.550
.560
.570
.580
.590
.610
.528
.536
.544
.556
.565
.576
.587
.597
.608
.619
.629
.651
.561
.570
.578
.591
.601
.612
.623
.635
.646
.657
.669
.691
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
High RPM Series II Solids are more aggressive than the original High RPM and Hi-Tech™ Solid profiles. They are designed for use in applications that need the
area of an XTQ style lobe, but are required to operate at higher engine speeds than that fast of a ramp will allow. HTL Lifters are highly recommended with these
profiles. Note: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative.
CAMSHAFT TYPE
High RPM II
Rated Duration @
.020" Tappet Lift
.842" Min. Dia.
.018" Lash
MI 30.3 (13.9/16.4)
LOBE #
RATED
DURATION
6330
6331
6332
6333
6334
6335
6336
287
291
295
299
303
307
311
DURATION IN DEGREES
@ .050
@ .200
256
260
264
268
272
276
280
167
171
175
179
183
187
191
LOBE LIFT
.367
.371
.376
.380
.384
.389
.393
TAPPET LIFT @ TDC
106°
110°
.121
.128
.135
.142
.149
.156
.163
.107
.114
.121
.128
.135
.142
.149
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.551
.557
.564
.570
.576
.584
.590
.587
.594
.602
.608
.614
.622
.629
.624
.631
.639
.646
.653
.661
.668
XTQ SOLIDS
The XTQ Solid design sets the new standard for aggressive .842" lifter designs. With seat timing as low as our original tight lash series and more area than our
famous "XX" .875" series, these designs give their racers a clear edge over the competition. Smaller designs are intended for restricted applications; larger
designs can be used in open applications with an optimized valve spring selection and lighter valve train. NOTE: Cams using these lobes should have provisions
for increased oiling. Please consult with our tech representative.
CAMSHAFT TYPE
XTQ
Rated Duration @
.020" Tappet Lift
.842" Min. Dia.
.018" Lash
MI 28.8 (13.8/15.0)
LOBE #
RATED
DURATION
6275
6276
6277
6258
16258
6259
16259
6260
16260
6261
16261
6262
16262
6263
16263
6264
16264
6265
16265
6266
16266
6267
16267
6268
16268
6269
6270
248XTQ
254XTQ
260XTQ
266XTQ
268XTQ
270XTQ
272XTQ
274XTQ
276XTQ
278XTQ
280XTQ
282XTQ
284XTQ
286XTQ
288XTQ
290XTQ
292XTQ
294XTQ
296XTQ
298XTQ
300XTQ
302XTQ
304XTQ
306XTQ
308XTQ
310XTQ
314XTQ
DURATION IN DEGREES
@ .050
@ .200
218
224
230
236
238
240
242
244
246
248
250
252
254
256
258
260
262
264
266
268
270
272
274
276
278
280
284
129
135
141
147
150
152
154
156
158
160
162
164
166
168
170
172
174
176
178
180
182
184
186
188
190
192
196
LOBE LIFT
.310
.318
.325
.334
.337
.340
.343
.346
.350
.354
.357
.360
.363
.366
.369
.372
.375
.378
.382
.386
.389
.392
.395
.398
.401
.404
.410
TAPPET LIFT @ TDC
106°
110°
.057
.067
.077
.087
.090
.094
.097
.101
.104
.108
.111
.115
.118
.122
.125
.129
.132
.136
.139
.143
.146
.150
.153
.157
.160
.164
.171
.046
.054
.064
.073
.077
.080
.083
.087
.090
.094
.097
.101
.104
.108
.111
.115
.118
.122
.125
.129
.132
.136
.139
.143
.146
.150
.157
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.465
.477
.488
.501
.506
.510
.515
.519
.525
.531
.536
.540
.545
.549
.554
.558
.563
.567
.573
.579
.584
.588
.593
.597
.602
.606
.615
.496
.509
.520
.534
.539
.544
.549
.554
.560
.566
.571
.576
.581
.586
.590
.595
.600
.605
.611
.618
.622
.627
.632
.637
.642
.646
.656
.527
.541
.553
.568
.573
.578
.583
.588
.595
.602
.607
.612
.617
.622
.627
.632
.638
.643
.649
.656
.661
.666
.672
.677
.682
.687
.697
SOLID FLAT TAPPET
HIGH RPM II SOLIDS
SOLID FLAT TAPPET
SOLID FLAT TAPPET
XTX SOLIDS
The XTX Solids are an excellent choice for exhaust profiles to be coupled with either the XTQ or MH profiles or can be used for both intake and exhaust in high
RPM applications. The closing side is similar to the High Torque profiles, but this design incorporates a faster opening side to increase torque and provide more
area. The lifts are slightly less than the High Torque profiles to increase the nose radius and reduce wear. Note: Cams using these lobes should have provisions
for increased oiling. Please consult with our tech representative.
CAMSHAFT TYPE
XTX
Rated Duration @
.020" Tappet Lift
.842" Min. Dia.
.018" Lash
MI 34.0 (16.2/17.8)
LOBE #
RATED
DURATION
6400
6402
6404
6406
6408
6410
6412
6414
6416
6418
6420
DURATION IN DEGREES
@ .050
@ .200
272
276
280
284
288
238
242
246
250
254
145
149
153
157
161
292
296
300
304
308
312
258
262
266
270
274
278
165
169
173
177
181
185
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
106°
110°
.335
.341
.347
.351
.355
.086
.092
.099
.105
.112
.074
.080
.086
.092
.098
.503
.512
.521
.527
.533
.536
.546
.555
.562
.568
.570
.580
.590
.597
.604
.359
.363
.367
.371
.375
.379
.118
.125
.132
.139
.146
.153
.105
.111
.118
.125
.132
.139
.539
.545
.551
.557
.563
.569
.574
.581
.587
.594
.600
.606
.610
.617
.624
.631
.638
.644
JF .330" LIFT SOLIDS
The JF .330" Lift Solids are designed for use in lift rule classes that require higher RPM or lighter springs than needed with the Max Area Lift Rule Series. The
JF designs are also good for use with very high rockers in more open applications. Can also be run in hydraulic lifter applications.
CAMSHAFT TYPE
JF .330" Lift
Rated Duration @
.020" Tappet Lift
.842" Min. Dia.
MI 29.3 (14.2/15.1)
LOBE #
RATED
DURATION
6158
6159
6160
6170
6161
6162
6172
6163
6173
6164
6157
6165
6166
6167
6168
6169
6184
6185
6186
6187
6188
269
271
273
275
277
281
283
285
287
289
291
293
295
297
299
301
303
305
307
309
311
DURATION IN DEGREES
@ .050
@ .200
240
242
244
246
248
252
254
256
258
260
262
264
266
268
270
272
274
276
278
280
282
149
151
153
155
157
161
163
164
166
167
168
170
172
174
176
178
180
182
183
185
187
LOBE LIFT
.327
.329
.330
.330
.330
.330
.330
.330
.330
.330
.330
.330
.330
.330
.330
.330
.330
.330
.330
.330
.330
TAPPET LIFT @ TDC
106°
110°
.100
.100
.100
.100
.107
.114
.118
.121
.123
.126
.129
.132
.136
.139
.143
.146
.149
.152
.156
.159
.162
.087
.087
.087
.087
.094
.100
.104
.107
.110
.113
.116
.119
.122
.126
.129
.133
.136
.139
.142
.146
.149
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.491
.494
.495
.495
.495
.495
.495
.495
.495
.495
.495
.495
.495
.495
.495
.495
.495
.495
.495
.495
.495
.523
.526
.528
.528
.528
.528
.528
.528
.528
.528
.528
.528
.528
.528
.528
.528
.528
.528
.528
.528
.528
.556
.559
.561
.561
.561
.561
.561
.561
.561
.561
.561
.561
.561
.561
.561
.561
.561
.561
.561
.561
.561
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
Based on the JF series except expressly for Lift Rule classes.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
HF .285" Lift
Rated Duration @
.020" Tappet Lift
.842" Min. Dia.
16230
JF .308" Lift
Rated Duration @
.020" Tappet Lift
.842" Min. Dia.
JF .301" Lift
Rated Duration @
.020" Tappet Lift
.842" Min. Dia.
DURATION IN DEGREES
@ .050
@ .200
282
252
148
16231
286
256
16234
16235
16236
16226
16237
279
281
283
285
287
16246
16248
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
106°
110°
.285
.110
.097
.428
.456
.485
151
.285
.116
.103
.428
.456
.485
250
252
254
256
258
155
157
158
160
162
.308
.308
.308
.308
.308
.110
.113
.116
.119
.123
.095
.100
.103
.106
.109
.462
.462
.462
.462
.462
.493
.493
.493
.493
.493
.524
.524
.524
.524
.524
295
266
167
.301
.135
.122
.452
.482
.512
299
270
171
.301
.141
.128
.452
.482
.512
JF SOLIDS
The JF Solids are higher lift versions of the JF .330" series. These lobes are easier on parts and more stable at high RPM than the TL series. The JF designs are
best with 1.65+ rockers in both circle track and drag race applications where durability is required. Can also be run in hydraulic lifter applications.
CAMSHAFT TYPE
JF .330" Lift
Rated Duration @
.020" Tappet Lift
.842" Min. Dia.
MI 29.5 (14.3/15.2)
LOBE #
RATED
DURATION
16104
16106
16108
16110
16112
16114
16116
16118
275
279
283
287
291
295
299
303
DURATION IN DEGREES
@ .050
@ .200
246
250
254
258
262
266
270
274
155
159
163
167
171
175
179
183
LOBE LIFT
.343
.349
.355
.361
.367
.373
.379
.385
TAPPET LIFT @ TDC
106°
110°
.102
.109
.116
.123
.130
.136
.143
.150
.089
.095
.102
.109
.116
.123
.130
.136
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.515
.524
.533
.542
.551
.560
.569
.578
.549
.558
.568
.578
.587
.597
.606
.616
.583
.593
.604
.614
.624
.634
.644
.655
SOLID FLAT TAPPET
HF & JF LIFT RULE SOLIDS
SOLID FLAT TAPPET
SOLID FLAT TAPPET
MAX AREA (MA) SOLIDS
The Max Area Series is designed for 2bbl and stock intake applications which are airflow limited. This series of lobes utilizes low seat timing with maximum
area under the curve. These lobes perform best with a 1.7 or 1.8 rocker ratio and can be used with an .842" lifter. Note: Cams using these lobes should have
provisions for increased oiling. Please consult with our tech representative.
CAMSHAFT TYPE
Max Area
Rated Duration @
.020" Tappet Lift
.842" Min. Dia.
MI 26.7 (13.0/13.7)
LOBE #
RATED
DURATION
6208
6209
6210
6211
6212
6213
6214
6215
6216
6217
6218
6219
6222
MA251-1
MA255-1
MA259-1
MA263-1
MA267-1
MA271-1
MA275-1
MA279-1
MA283-1
MA287-1
MA291-1
MA295-1
MA299-1
DURATION IN DEGREES
@ .050
@ .200
225
229
232
236
240
244
248
252
256
260
264
268
272
135
139
143
147
151
155
159
161
164
168
171
176
179
LOBE LIFT
.319
.326
.330
.331
.333
.340
.340
.340
.340
.340
.340
.345
.345
TAPPET LIFT @ TDC
106°
110°
.064
.072
.076
.090
.097
.104
.109
.116
.123
.129
.136
.143
.149
.053
.059
.064
.077
.083
.091
.096
.103
.109
.116
.123
.129
.136
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.479
.489
.495
.497
.500
.510
.510
.510
.510
.510
.510
.518
.518
.510
.522
.528
.530
.533
.544
.544
.544
.544
.544
.544
.552
.552
.542
.554
.561
.563
.566
.578
.578
.578
.578
.578
.578
.587
.587
MAX AREA LIFT RULE SOLIDS
The Max Area Lift Rule lobes can be run with solid lifters or Pro Magnum™-style hydraulic lifters. They are more aggressive off the seat than the parent Max
Area Series for tighter lash and less rocker. They work well in lift rule oval track, road race and high RPM NHRA Stock Eliminator classes. Will check 21° larger
at .006" than .020". Specifically designed to optimize dynamic valve motion and produce maximum power, these lobes use the experience gained from racing
the MA profile and the techniques we learn from our Spintron testing to provide the best performance in all lift rule applications. Grouped in lobe lift increments
for convenient selection. Note: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative.
CAMSHAFT TYPE
Max Area Low Lift
Rated Duration @
.020" Tappet Lift
.842" Min. Dia.
.010"-.020" Lash
MI 26.7 (13.0/13.7)
LOBE #
RATED
DURATION
5695
5696
5704
5718
5720
5719
5708
5645
5744
5746
5550
5517
5518
5519
5553
5547
5556
5643
273
277
283
275
279
283
293
257
261
265
267
269
271
273
274
277
279
281
DURATION IN DEGREES
@ .050
@ .200
246
250
256
248
252
256
266
230
234
238
240
242
244
246
248
250
252
254
124
127
142
140
144
148
159
124
129
133
134
138
140
142
142
145
146
148
LOBE LIFT
.237
.237
.242
.252
.252
.252
.255
.260
.260
.260
.260
.260
.260
.260
.260
.260
.260
.260
TAPPET LIFT @ TDC
106°
110°
.100
.106
.117
.103
.109
.115
.131
.076
.083
.089
.093
.096
.100
.103
.107
.109
.112
.115
.088
.094
.105
.090
.096
.103
.119
.063
.070
.076
.080
.083
.086
.090
.093
.096
.099
.102
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.356
.356
.363
.378
.378
.378
.383
.390
.390
.390
.390
.390
.390
.390
.390
.390
.390
.390
.379
.379
.387
.403
.403
.403
.408
.416
.416
.416
.416
.416
.416
.416
.416
.416
.416
.416
.403
.403
.411
.428
.428
.428
.434
.442
.442
.442
.442
.442
.442
.442
.442
.442
.442
.442
Continued on page 51
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
CAMSHAFT TYPE
Max Area Low Lift
Rated Duration @
.020" Tappet Lift
.842" Min. Dia.
.010"-.020" Lash
MI 26.7 (13.0/13.7)
LOBE #
RATED
DURATION
5548
5537
5551
5549
5801
5802
5644
5649
5646
5650
5651
5652
5653
5647
5654
5655
5657
5692
5694
5777
5778
5779
5698
5697
5667
5668
5669
5670
5656
5658
5659
5666
5663
5800
5664
5665
5687
5660
5661
5662
5678
5680
5679
5892
DURATION IN DEGREES
@ .050
@ .200
285
287
289
293
297
301
265
273
275
277
281
285
289
291
293
297
301
283
291
292
294
296
297
303
257
265
269
273
276
283
286
290
295
297
301
303
299
283
258
260
262
266
270
274
238
246
248
250
254
258
262
264
266
270
274
256
264
266
268
270
270
276
230
238
242
246
250
256
260
264
268
270
274
276
272
256
151
153
155
158
161
164
134
143
145
146
150
154
159
161
163
167
170
156
165
167
169
170
171
176
135
142
145
148
152
156
161
165
171
173
172
174
159
162
287
291
279
286
294
244
260
264
252
259
267
218
166
169
152
158
167
127
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
106°
110°
.260
.260
.260
.260
.260
.260
.266
.266
.266
.266
.266
.266
.266
.266
.266
.266
.266
.273
.273
.274
.274
.274
.278
.275
.283
.283
.283
.283
.283
.283
.283
.283
.283
.283
.283
.283
.283
.288
.121
.124
.127
.133
.139
.144
.089
.103
.106
.109
.115
.122
.129
.132
.135
.141
.147
.121
.134
.137
.140
.143
.144
.152
.078
.091
.098
.104
.110
.121
.127
.136
.144
.145
.149
.151
.136
.123
.109
.112
.115
.121
.127
.133
.076
.090
.093
.096
.102
.110
.116
.120
.123
.129
.135
.108
.121
.124
.127
.130
.131
.140
.064
.077
.084
.090
.097
.107
.113
.123
.131
.132
.136
.139
.125
.109
.390
.390
.390
.390
.390
.390
.399
.399
.399
.399
.399
.399
.399
.399
.399
.399
.399
.410
.410
.411
.411
.411
.417
.413
.425
.425
.425
.425
.425
.425
.425
.425
.425
.425
.425
.425
.425
.432
.288
.288
.290
.294
.296
.300
.130
.136
.113
.121
.134
.058
.116
.122
.100
.108
.121
.046
.432
.432
.435
.441
.444
.450
.416
.416
.416
.416
.416
.416
.426
.426
.426
.426
.426
.426
.426
.426
.426
.426
.426
.437
.437
.438
.438
.438
.445
.440
.453
.453
.453
.453
.453
.453
.453
.453
.453
.453
.453
.453
.453
.442
.442
.442
.442
.442
.442
.452
.452
.452
.452
.452
.452
.452
.452
.452
.452
.452
.464
.464
.466
.466
.466
.473
.468
.481
.481
.481
.481
.481
.481
.481
.481
.481
.481
.481
.481
.481
.461
.461
.461
.464
.470
.474
.480
.490
.490
.490
.493
.500
.503
.510
Continued on page 52
SOLID FLAT TAPPET
MAX AREA LIFT RULE SOLIDS Continued
SOLID FLAT TAPPET
SOLID FLAT TAPPET
MAX AREA LIFT RULE SOLIDS Continued
CAMSHAFT TYPE
Max Area Low Lift
Rated Duration @
.020" Tappet Lift
.842" Min. Dia.
.010"-.020" Lash
MI 26.7 (13.0/13.7)
LOBE #
RATED
DURATION
5676
5677
5738
5682
5683
5684
5685
5686
5783
5784
5681
6174
5713
5714
5715
6192
6193
6194
6195
6196
6197
6198
6199
6200
5893
5813
5814
6231
6232
6234
6257
6235
6278
6236
6237
6238
6239
6246
6240
6249
6241
6242
6243
6244
DURATION IN DEGREES
@ .050
@ .200
263
267
268
275
279
283
287
291
295
299
271
274
280
282
284
266
270
274
278
282
286
290
294
298
252
295
303
262
266
274
276
278
280
282
286
290
294
296
236
240
242
248
252
256
260
264
268
272
244
248
254
256
258
240
244
248
252
256
260
264
268
272
226
268
276
236
240
248
250
252
254
256
260
264
268
270
143
147
151
155
158
162
166
170
177
180
151
158
158
160
162
150
154
158
162
166
170
174
178
182
135
176
184
148
152
160
162
164
166
168
172
176
180
182
300
304
262
266
270
274
274
278
236
240
244
248
186
190
149
152
156
160
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
106°
110°
.300
.300
.300
.300
.300
.300
.300
.300
.300
.300
.300
.304
.306
.306
.306
.312
.312
.312
.312
.312
.312
.312
.312
.312
.315
.317
.317
.322
.322
.322
.322
.322
.322
.322
.322
.322
.324
.320
.088
.095
.097
.109
.116
.123
.130
.136
.145
.152
.102
.109
.116
.119
.123
.095
.102
.109
.116
.123
.130
.137
.144
.151
.070
.143
.143
.088
.095
.109
.113
.116
.120
.124
.131
.138
.145
.148
.074
.081
.083
.095
.102
.109
.116
.123
.131
.138
.088
.095
.103
.106
.109
.081
.088
.095
.102
.109
.116
.123
.130
.137
.058
.129
.129
.075
.081
.095
.099
.102
.106
.109
.116
.124
.131
.134
.450
.450
.450
.450
.450
.450
.450
.450
.450
.450
.450
.456
.459
.459
.459
.468
.468
.468
.468
.468
.468
.468
.468
.468
.473
.476
.476
.483
.483
.483
.483
.483
.483
.483
.483
.483
.486
.480
.324
.324
.330
.330
.330
.330
.155
.162
.088
.095
.102
.109
.141
.148
.075
.081
.088
.095
.486
.486
.495
.495
.495
.495
.480
.480
.480
.480
.480
.480
.480
.480
.480
.480
.480
.486
.490
.490
.490
.499
.499
.499
.499
.499
.499
.499
.499
.499
.504
.507
.507
.515
.515
.515
.515
.515
.515
.515
.515
.515
.518
.510
.510
.510
.510
.510
.510
.510
.510
.510
.510
.510
.517
.520
.520
.520
.530
.530
.530
.530
.530
.530
.530
.530
.530
.536
.539
.539
.547
.547
.547
.547
.547
.547
.547
.547
.547
.551
.512
.518
.518
.528
.528
.528
.528
.544
.551
.551
.561
.561
.561
.561
Continued on page 53
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
CAMSHAFT TYPE
Max Area Low Lift
Rated Duration @
.020" Tappet Lift
.842" Min. Dia.
.010"-.020" Lash
MI 26.7 (13.0/13.7)
LOBE #
RATED
DURATION
6294
6245
6247
6229
6228
6227
6230
6224
6226
6225
276
278
282
286
288
290
292
294
298
302
DURATION IN DEGREES
@ .050
@ .200
250
252
256
260
262
264
266
268
272
276
162
164
167
170
174
176
178
180
184
188
LOBE LIFT
.330
.330
.330
.330
.330
.330
.330
.330
.330
.330
TAPPET LIFT @ TDC
106°
110°
.113
.116
.124
.132
.134
.138
.141
.145
.152
.159
.099
.102
.109
.116
.120
.124
.127
.131
.138
.145
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.495
.495
.495
.495
.495
.495
.495
.495
.495
.495
.528
.528
.528
.528
.528
.528
.528
.528
.528
.528
.561
.561
.561
.561
.561
.561
.561
.561
.561
.561
USI USX UPI UPX STOCKER FLAT SOLIDS
These are designs for high RPM stocker applications.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
USI
Rated Duration @
.020" Tappet Lift
MI 32.4 (15.7/16.7)
5854
5840
5538
5540
USX
Rated Duration @
.020" Tappet Lift
MI 32.6 (15.8/16.8)
5862
5846
5544
5546
DURATION IN DEGREES
@ .050
@ .200
294
298
294
298
263
266
262
266
157
157
166
170
300
305
301
305
269
272
268
272
164
166
174
178
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
106°
110°
.267
.267
.345
.345
.124
.125
.123
.130
.111
.113
.110
.116
.401
.401
.552
.552
.427
.427
.587
.587
.454
.454
.621
.621
.277
.277
.365
.365
.135
.136
.134
.141
.122
.124
.121
.128
.416
.416
.584
.584
.443
.443
.621
.621
.471
.471
.657
.657
SOLID FLAT TAPPET
MAX AREA LIFT RULE SOLIDS Continued
SOLID FLAT TAPPET
SOLID FLAT TAPPET
MH SOLIDS
MH Solids are the most aggressive .842" solid lifter profiles available. These are best in restricted applications where maximum torque and power are required
and valve train rules are open except for requiring .842" flat tappets. The COMP Cams® #26094 valve spring, 3/8" minimum pushrod diameters, Hi-Tech™ late
oiling tappets and shaft mounted rockers are all highly recommended. Please consult with a COMP Cams® CAM HELP® technician or one of our Engine Builder
Sales personnel before using these profiles to reduce the risk from improper component selection. NOTE: Cams using these lobes should have provisions for
increased oiling. Please consult with our tech representative.
CAMSHAFT TYPE
MH
Rated Duration @
.020" Tappet Lift
.842" Min. Dia.
.018" Lash
MI 25.6 (12.3/13.3)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
6252
6286
6253
6289
262
264
266
268
236
238
240
242
149
151
153
155
.345
.348
.350
.354
.088
.092
.095
.099
.075
.078
.081
.085
.518
.522
.525
.531
.552
.557
.560
.566
.587
.592
.595
.602
6282
6251
6281
6250
6280
6254
6283
6284
6255
6285
6256
270
272
274
276
278
280
282
284
286
288
290
244
246
248
250
252
254
256
258
260
262
264
157
159
161
163
165
167
169
171
173
175
177
.357
.360
.362
.365
.367
.368
.370
.372
.375
.377
.380
.102
.106
.109
.113
.116
.120
.124
.127
.131
.134
.138
.088
.092
.095
.099
.102
.106
.109
.113
.116
.120
.124
.536
.540
.543
.548
.551
.552
.555
.558
.563
.566
.570
.571
.576
.579
.584
.587
.589
.592
.595
.600
.603
.608
.607
.612
.615
.621
.624
.626
.629
.632
.638
.641
.646
LOBE LIFT
GRI SOLIDS
The GRI Series .842" solid lifter profiles are designed using the latest techniques to fill in the gap between the XTQ and MH families while providing better
dynamics than either other design. These should be used only on nitrided camshafts. Also, the mating lifters should be inspected and sorted by the chamfer with
only small chamfer lifters used on these designs. Please consult with a COMP Cams® CAM HELP® technician or one of our Engine Builder Sales personnel
before using these profiles to reduce the risk from improper component selection. Note: Cams using these lobes should have provisions for increased oiling.
Please consult with our tech representative.
CAMSHAFT TYPE
GRI
Rated Duration @
.020" Tappet Lift
MI 27.1 (13.1/14.0)
LOBE #
RATED
DURATION
16200
16202
16203
16204
16206
16208
16210
16212
16214
16216
16218
16220
16222
16188
265
269
271
273
277
281
285
289
293
297
301
305
309
281
DURATION IN DEGREES
@ .050
@ .200
238
242
244
246
250
254
258
262
266
270
274
278
282
254
150
154
156
158
162
166
170
174
178
182
186
190
194
166
LOBE LIFT
.346
.353
.357
.360
.367
.373
.379
.385
.391
.397
.403
.409
.415
.360
TAPPET LIFT @ TDC
106°
110°
.091
.098
.102
.105
.112
.119
.126
.133
.140
.147
.154
.161
.168
.119
.078
.084
.088
.091
.098
.105
.112
.119
.126
.133
.140
.147
.154
.105
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.519
.530
.536
.540
.551
.560
.569
.578
.587
.596
.605
.614
.623
.540
.554
.565
.571
.576
.587
.597
.606
.616
.626
.635
.645
.654
.664
.576
.588
.600
.607
.612
.624
.634
.644
.655
.665
.675
.685
.695
.706
.612
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
The MEM Series .842" solid lifter profiles were designed for the first Engine Masters competition. May work on minimum chamfer .842" lifters for a short period
of time but would be much safer on .875" tappets. 1.948" minimum journal diameter. Nitriding and increased oiling are highly recommended.
CAMSHAFT TYPE
MEM
Rated Duration @
.020" Tappet Lift
MI 25.5 (12.4/13.1)
LOBE #
RATED
DURATION
6780
6782
6784
6786
6788
262
266
270
274
278
DURATION IN DEGREES
@ .050
@ .200
237
241
245
249
253
152
156
160
164
168
LOBE LIFT
.363
.369
.375
.381
.387
TAPPET LIFT @ TDC
106°
110°
.092
.099
.106
.113
.120
.078
.085
.092
.099
.106
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.545
.554
.563
.572
.581
.581
.590
.600
.610
.619
.617
.627
.638
.648
.658
MHF SOLIDS
MHF Solids are similar to the MH Series but have even more velocity and more area to take complete advantage of the larger .875" Ford lifter. Please consult
with a COMP Cams® CAM HELP® technician or one of our Engine Builder Sales personnel before using these profiles to reduce the risk from improper component selection. NOTE: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative.
CAMSHAFT TYPE
MHF
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
.018" Lash
MI 25.6 (12.4/13.2)
LOBE #
RATED
DURATION
7393
7394
7395
7404
7405
7406
7408
7409
7411
7412
7413
7414
7415
7416
260
262
264
266
268
270
274
278
282
286
290
294
296
298
DURATION IN DEGREES
@ .050
@ .200
234
236
238
240
242
244
248
252
256
260
264
268
270
272
150
152
154
156
158
160
164
168
172
176
180
184
186
188
LOBE LIFT
.355
.357
.359
.361
.362
.364
.369
.373
.380
.385
.390
.395
.397
.400
TAPPET LIFT @ TDC
106°
110°
.085
.089
.093
.096
.100
.104
.111
.118
.126
.133
.141
.148
.152
.156
.071
.075
.078
.082
.085
.089
.096
.104
.111
.118
.126
.133
.137
.141
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.533
.536
.539
.542
.543
.546
.554
.560
.570
.578
.585
.593
.596
.600
.568
.571
.574
.578
.579
.582
.590
.597
.608
.616
.624
.632
.635
.640
.604
.607
.610
.614
.615
.619
.627
.634
.646
.655
.663
.672
.675
.680
SOLID FLAT TAPPET
MEM SOLIDS
SOLID FLAT TAPPET
SOLID FLAT TAPPET
FL & SQ SOLIDS
The FL Series is designed to provide excellent area under the curve with an .875" tappet. These work well in place of TLs where .875" lifters can be used.
Excellent in restricted applications with 1.65:1 to 1.75:1 rocker arms. Increased valve spring loads are recommended for higher RPM. The SQ designs are the
larger cousins of the FL series and can be used in higher RPM applications with increased spring loads. Note: Cams using these lobes should have provisions
for increased oiling. Please consult with our tech representative.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
FL .875"
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 29.2 (14.6/14.6)
7130
7131
7132
7133
7134
SQ .875"
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 29.2 (14.6/14.6)
7250
7262
7260
7263
7261
7265
7266
7267
DURATION IN DEGREES
@ .050
@ .200
FL268
FL272
FL276
FL280
FL284
239
243
247
251
254
153
157
161
165
169
289
291
293
295
297
300
302
304
260
262
264
266
268
270
272
274
175
177
179
181
183
185
187
189
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
106°
110°
.356
.361
.366
.371
.381
.091
.098
.106
.113
.120
.078
.084
.091
.098
.106
.534
.542
.549
.557
.572
.570
.578
.586
.594
.610
.605
.614
.622
.631
.648
.385
.385
.390
.390
.400
.400
.400
.400
.132
.135
.138
.142
.146
.150
.154
.158
.117
.120
.123
.127
.131
.135
.139
.143
.578
.578
.585
.585
.600
.600
.600
.600
.616
.616
.624
.624
.640
.640
.640
.640
.655
.655
.663
.663
.680
.680
.680
.680
HIGH RPM DASH 12 SOLIDS
Designed to turn high engine speed while maintaining control of the valve. Must use .875" diameter lifter. For use with 1.65 to 1.7+ rocker arms. Easy on valve
train components. Intake designs have faster opening ramps and can be used on intake or exhaust. Exhaust designs have symmetric ramps and are smoother.
Note: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
High RPM Dash 12 Int.
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 35.0 (16.5/18.5)
7160
7161
7162
7163
7164
7165
7166
7168
7158
7159
292-12
296-12
300-12
302-12
304-12
306-12
308-12
312-12
314-12
318-12
258
262
266
268
270
272
274
278
280
284
168
171
176
179
180
182
183
188
190
194
.375
.380
.390
.395
.395
.400
.400
.408
.410
.410
.120
.128
.130
.134
.138
.142
.145
.153
.156
.164
.106
.113
.116
.119
.123
.127
.130
.138
.142
.149
.563
.570
.585
.593
.593
.600
.600
.612
.615
.615
.600
.608
.624
.632
.632
.640
.640
.653
.656
.656
.638
.646
.663
.672
.672
.680
.680
.694
.697
.697
High RPM Dash 12 Exh.
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 37.0 (18.5/18.5)
7169
7170
7174
7171
7172
312-11
316-12
318-11
320-12
322-12
276
280
282
284
286
184
188
190
192
194
.400
.408
.410
.410
.410
.148
.155
.159
.163
.167
.134
.141
.145
.148
.152
.600
.612
.615
.615
.615
.640
.653
.656
.656
.656
.680
.694
.697
.697
.697
LOBE LIFT
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
Dash 13 Solids are very similar to both the Dash 12 and XX open designs. These provide a more modern, in-between series that can handle more rocker ratio
than either of the two earlier families. Note: Cams using these lobes should have provisions for increased oiling.
CAMSHAFT TYPE
Dash 13
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 33.8 (16.6/16.9)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
7185
9185
7186
9186
7187
9187
7188
9188
7189
9189
7190
9190
7191
9191
7192
310-13
310
312-13
312
314-13
314
316-13
316
318-13
318
320-13
320
322-13
322
324-13
276
276
278
278
280
280
282
282
284
284
286
286
288
288
290
186
186
188
188
190
190
192
192
194
194
196
196
198
198
200
.392
.402
.394
.404
.396
.406
.398
.408
.400
.410
.402
.412
.403
.414
.404
.151
.151
.155
.155
.159
.159
.163
.163
.166
.166
.170
.170
.174
.174
.178
.136
.136
.140
.140
.144
.144
.148
.148
.151
.151
.155
.155
.159
.159
.163
.627
.643
.630
.646
.634
.650
.637
.653
.640
.656
.643
.659
.645
.662
.646
.666
.683
.670
.687
.673
.690
.677
.694
.680
.697
.683
.700
.685
.704
.687
.706
.724
.709
.727
.713
.731
.716
.734
.720
.738
.724
.742
.725
.745
.727
9192
7193
9193
7194
9194
7015
9195
7016
324
326-13
326
328-13
328
330-13
330
332-13
290
292
292
294
294
296
296
298
200
202
202
204
204
206
206
208
.416
.405
.418
.406
.420
.407
.422
.408
.178
.182
.182
.186
.186
.189
.189
.193
.163
.167
.167
.171
.171
.174
.174
.178
.666
.648
.669
.650
.672
.651
.675
.653
.707
.689
.711
.690
.714
.692
.717
.694
.749
.729
.752
.731
.756
.733
.760
.734
LOBE LIFT
F3 EXHAUST SOLIDS
The F3 Exhaust Solids are like the Dash 13 high lift lobes, but they have a faster opening ramp design to help increase torque while increasing opening area to
reduce pumping losses. NOTE: Cams using these lobes should have provisions for increased oiling.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
F3 Exh.
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 31.9 (15.0/16.9)
9158
9159
9160
9161
9162
314
316
318
320
322
DURATION IN DEGREES
@ .050
@ .200
283
285
287
289
291
194
196
198
200
202
LOBE LIFT
.410
.412
.414
.416
.418
TAPPET LIFT @ TDC
106°
110°
.166
.170
.174
.178
.182
.151
.155
.159
.163
.167
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.656
.659
.662
.666
.669
.697
.700
.704
.707
.711
.738
.742
.745
.749
.752
SOLID FLAT TAPPET
DASH 13 SOLIDS
SOLID FLAT TAPPET
SOLID FLAT TAPPET
D3C SOLIDS
D3C Solids are like the Dash 13 designs but with slightly less velocity for coated tappets.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
D3C
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 33.8 (16.6/16.9)
9384
9385
9386
9387
9388
9389
312
314
316
318
320
322
DURATION IN DEGREES
@ .050
@ .200
278
280
282
284
286
288
187
189
191
193
195
197
LOBE LIFT
.390
.392
.394
.396
.398
.400
TAPPET LIFT @ TDC
106°
110°
.154
.158
.162
.166
.169
.173
.140
.144
.147
.151
.155
.158
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.624
.627
.630
.634
.637
.640
.663
.666
.670
.673
.677
.680
.702
.706
.709
.713
.716
.720
XX SOLIDS
The smaller Restricted Designs are very aggressive. The larger Open Designs are for continuous high RPM, providing stability over 8500 with good related components. Both require proper spring selection and regular maintenance. Very good horsepower curves. Proper break-in is very critical with these lobe designs.
Best when used with COMP® HTL Lifters and 1.6-1.7 rocker ratios. Note: Cams using these lobes should have provisions for increased oiling. Please consult
with our tech representative.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
XX
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 30.0 (13.6/16.4)
7110
7113
7114
7115
7136
7116
7118
7117
278XX
280XX
282XX
284XX
286XX
288XX
294XX
298XX
246
248
250
254
256
258
262
266
159
160
162
166
168
170
175
180
.365
.365
.370
.366
.378
.380
.390
.400
.102
.103
.106
.114
.118
.120
.129
.137
.088
.090
.092
.100
.104
.107
.115
.122
.548
.548
.555
.549
.567
.570
.585
.600
.584
.584
.592
.586
.605
.608
.624
.640
.621
.621
.629
.622
.643
.646
.663
.680
Open Designs
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 32.7 (16.4/16.4)
7068
7069
7071
7072
7073
7074
7075
7125
7077
7078
7127
7135
292XX
296XX
300XX
302XX
304XX
306XX
308XX
310XX
312XX
314XX
316XX
320XX
260
264
268
270
272
274
276
278
280
282
284
288
170
174
178
180
182
184
186
190
191
193
196
200
.390
.395
.400
.403
.406
.408
.410
.415
.415
.418
.420
.420
.124
.133
.139
.141
.145
.148
.153
.158
.161
.165
.169
.177
.110
.119
.122
.124
.126
.131
.133
.139
.143
.150
.146
.154
.585
.593
.600
.605
.609
.612
.615
.623
.623
.627
.630
.630
.624
.632
.640
.645
.650
.653
.656
.664
.664
.669
.672
.672
.663
.672
.680
.685
.690
.694
.697
.706
.706
.711
.714
.714
LOBE LIFT
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
Specially designed for NASCAR Sprint Cup restrictor plate engines. Use with 2.0:1 intake rocker and 1.9:1 exhaust along with a COMP Cams® #927 valve
spring. Very smooth for 2.0:1 design and very easy on other valve train parts. Note: Cams using these lobes should have provisions for increased oiling. Please
consult with our tech representative.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
High Rocker Ratio
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 32.3 (15.7/16.6)
7380
7381
7382
7388
7383
7386
7384
7387
7385
7389
7396
7399
261
265
270
272
274
276
278
280
282
286
292
298
DURATION IN DEGREES
@ .050
@ .200
230
234
238
240
242
244
246
248
250
254
260
266
141
144
146
149
152
153
154
157
158
163
169
175
LOBE LIFT
.325
.325
.325
.335
.335
.335
.335
.340
.340
.350
.355
.360
TAPPET LIFT @ TDC
106°
110°
.075
.081
.087
.090
.094
.097
.100
.104
.107
.114
.125
.136
.063
.069
.075
.078
.081
.084
.087
.090
.094
.100
.111
.121
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.9
2.0
2.1
.618
.618
.618
.637
.637
.637
.637
.646
.646
.665
.675
.684
.650
.650
.650
.670
.670
.670
.670
.680
.680
.700
.710
.720
.683
.683
.683
.704
.704
.704
.704
.714
.714
.735
.746
.756
HIGH ROCKER RATIO II SOLIDS
Specially designed for NASCAR Sprint Cup restrictor plate engines. Use with 2.0:1 intake rocker and 1.9:1 exhaust along with a COMP Cams® #927 valve
spring. More aggressive than earlier 2.0:1 design but still very easy on valve train parts.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
High Rocker Ratio II
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 29.9 (14.6/15.3)
7353
7354
7355
7356
7357
7358
7359
7362
7363
7364
7365
7366
7367
7368
266
268
270
272
274
276
278
280
282
284
286
288
290
292
DURATION IN DEGREES
@ .050
@ .200
236
238
240
242
244
246
248
250
252
254
256
258
260
262
148
150
152
154
157
158
160
162
164
166
167
169
170
172
LOBE LIFT
.332
.335
.338
.342
.345
.345
.345
.345
.345
.345
.345
.345
.345
.345
TAPPET LIFT @ TDC
106°
110°
.087
.090
.093
.097
.101
.104
.108
.111
.115
.119
.122
.126
.129
.133
.063
.076
.080
.083
.087
.090
.093
.097
.100
.104
.108
.111
.115
.118
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.9
2.0
2.1
.631
.637
.642
.650
.656
.656
.656
.656
.656
.656
.656
.656
.656
.656
.664
.670
.676
.684
.690
.690
.690
.690
.690
.690
.690
.690
.690
.690
.697
.704
.710
.718
.725
.725
.725
.725
.725
.725
.725
.725
.725
.725
SOLID FLAT TAPPET
HIGH ROCKER RATIO SOLIDS
SOLID FLAT TAPPET
SOLID FLAT TAPPET
N SOLIDS
Our most popular NASCAR Sprint Cup designs, these provide excellent power and reliability. Very stable at high RPM (9400+) with COMP Cams® #927 valve
springs and proper valve train selection. Excellent high end power with slightly less low-end torque than XX series. Needs .875" HTL tappet and true lifter bores
with very careful break-in.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
N
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 31.8 (15.0/16.8)
7020
7021
7022
7028
7023
7084
7085
7086
7087
294N-1
298N-2
300N-1
302N-1
304N-1
306N-1
308N-1
310N-1
312N-1
262
266
268
270
272
274
276
278
280
174
176
173
181
183
186
187
189
191
.401
.410
.406
.410
.412
.411
.411
.411
.411
.129
.134
.132
.143
.147
.151
.155
.158
.161
.115
.120
.121
.128
.132
.136
.141
.143
.147
.602
.615
.609
.615
.618
.617
.617
.617
.617
.642
.656
.650
.656
.659
.658
.658
.658
.658
.682
.697
.690
.697
.700
.699
.699
.699
.699
N
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 38.7 (20.6/18.1)
7120
7121
7122
7123
7124
304N-3E
308N-1E
310N-1E
314N-1E
318N-1E
266
270
271
276
280
174
179
178
183
186
.390
.400
.390
.400
.405
.128
.133
.137
.145
.149
.114
.119
.123
.131
.135
.585
.600
.585
.600
.608
.624
.640
.624
.640
.648
.663
.680
.663
.680
.689
LOBE LIFT
OVAL+ SOLIDS
These profiles have their design based on the ever popular N-1 series but have been optimized for the higher rocker ratios, tighter lash settings and lower compression used in today’s NASCAR Sprint Cup engines. For use with 1.7 to 1.8:1 rockers (or more in qualifying). Requires the same care as the N-1 for break-in.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
Oval+
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 32.5 (15.6/16.9)
7037
7038
7039
7040
7041
7042
7043
7044
7049
299
301
303
305
307
309
311
313
315
DURATION IN DEGREES
@ .050
@ .200
266
268
270
272
274
276
278
280
282
177
179
181
183
185
187
189
191
193
LOBE LIFT
.399
.401
.403
.405
.407
.409
.411
.413
.415
TAPPET LIFT @ TDC
106°
110°
.136
.140
.143
.147
.151
.154
.158
.162
.165
.122
.125
.128
.132
.136
.140
.143
.147
.151
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.75
1.8
.678
.682
.685
.689
.692
.695
.699
.702
.706
.698
.702
.705
.709
.712
.716
.719
.723
.726
.718
.722
.725
.729
.733
.736
.740
.743
.747
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
These profiles have their design based on the ever popular N-1 series but have been optimized for the higher rocker ratios, tighter lash settings and lower compression used in today’s NASCAR Sprint Cup engines. For use with 1.7 to 1.8:1 rockers (or more in qualifying). Requires the same care as the N-1 for break-in.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
FE .875"
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 32.0 (15.0/17.0)
7665
7666
7667
7668
7669
7670
7671
299
301
303
305
307
309
311
DURATION IN DEGREES
@ .050
@ .200
267
269
271
273
275
277
279
178
180
182
184
186
188
190
LOBE LIFT
.398
.400
.402
.405
.408
.411
.413
TAPPET LIFT @ TDC
106°
110°
.138
.141
.145
.149
.153
.156
.159
.123
.127
.130
.134
.137
.141
.145
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.75
1.8
.677
.680
.683
.689
.694
.699
.702
.697
.700
.704
.709
.714
.719
.723
.716
.720
.724
.729
.734
.740
.743
TDLC SOLIDS
The TDLC Solids are a cross between the Oval+ and FE designs but with lower velocity for use with coated tappets.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
TDLC
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 31.8 (15.5/16.3)
9374
9375
9376
9377
297
299
301
303
DURATION IN DEGREES
@ .050
@ .200
266
268
270
272
176
178
180
182
LOBE LIFT
.384
.386
.388
.390
TAPPET LIFT @ TDC
106°
110°
.134
.138
.142
.145
.120
.124
.127
.131
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.9
2.0
2.1
.730
.733
.737
.741
.768
.772
.776
.780
.806
.811
.815
.819
T1N − VERY HIGH RPM .875" FLAT
The T1N series is the next step in the evolution of the N1, Oval+ and FE series. These are optimized for use on tool steel cams and work very well with the
popular DLC tappet coatings. T1N profiles have been used very successfully on both the intake and exhaust side.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
T1N High RPM .875" Flat
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 32.6 (15.7/16.9)
9360
9361
9362
9363
9364
9365
9366
9367
9368
9369
9370
303
305
307
309
311
313
315
317
319
321
323
DURATION IN DEGREES
@ .050
@ .200
270
272
274
276
278
280
282
284
286
288
290
181
183
185
187
189
191
193
195
197
199
201
LOBE LIFT
.394
.396
.398
.400
.402
.404
.406
.408
.410
.412
.414
TAPPET LIFT @ TDC
106°
110°
.142
.146
.150
.153
.157
.161
.164
.168
.172
.176
.179
.128
.131
.135
.139
.142
.146
.150
.153
.157
.161
.164
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
.709
.713
.716
.720
.724
.727
.731
.734
.738
.742
.745
.749
.752
.756
.760
.764
.768
.771
.775
.779
.783
.787
.788
.792
.796
.800
.804
.808
.812
.816
.820
.824
.828
SOLID FLAT TAPPET
FE .875" SOLIDS
SOLID FLAT TAPPET
SOLID FLAT TAPPET
TCT − HIGH RATIO .875" FLAT
CAMSHAFT TYPE
LOBE #
RATED
DURATION
TCT High Ratio
.875" Flat
Rated Duration @
.020" Tappet Lift
MI 33.3 (16.4/16.9)
9771
DURATION IN DEGREES
@ .050
@ .200
298
265
173
9772
300
267
9773
302
269
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
2.0
2.1
2.2
106°
110°
.372
.130
.116
.744
.781
.818
175
.374
.133
.119
.748
.785
.823
177
.376
.137
.123
.752
.790
.827
NRX SOLIDS
The NRX Solids are designed for use in NASCAR Spring Cup engines with 55mm or larger journals. They are designed with higher lobe lifts than the standard
journal families to allow either less ratio or higher lift. Use in applications with less than 55mm journals will result in a small nose radius and premature wear.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
NRX
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 32.6 (15.5/17.1)
7203
7204
7205
7206
7207
7208
9709
9710
9711
9712
9713
9714
299
301
303
305
307
309
311
313
315
317
319
321
DURATION IN DEGREES
@ .050
@ .200
266
268
270
272
274
276
278
280
282
284
286
288
179
181
183
185
187
189
191
193
195
197
199
201
LOBE LIFT
.414
.416
.418
.420
.422
.424
.426
.428
.430
.432
.434
.436
TAPPET LIFT @ TDC
106°
110°
.139
.143
.147
.151
.155
.158
.162
.166
.170
.174
.177
.181
.124
.128
.132
.136
.139
.143
.147
.151
.155
.158
.162
.166
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.75
1.8
.704
.707
.711
.714
.717
.721
.724
.728
.731
.734
.738
.741
.725
.728
.732
.735
.739
.742
.746
.749
.753
.756
.760
.763
.745
.749
.752
.756
.760
.763
.767
.770
.774
.778
.781
.785
DIR 2.3 RATIO CONVERSIONS − .875" FLAT
CAMSHAFT TYPE
LOBE #
RATED
DURATION
DIR High Lift
Rated Duration @
.020" Tappet Lift
MI 34.0 (16.0/18.0)
17574
17600
17382
17525
17576
17549
17537
17570
17538
17605
17572
290
294
294
292
294
314
312
316
314
318
320
DURATION IN DEGREES
@ .050
@ .200
256
259
260
260
260
279
280
281
282
282
285
166
167
169
172
169
186
189
185
191
187
189
LOBE LIFT
.378
.379
.376
.375
.380
.380
.382
.374
.384
.379
.376
TAPPET LIFT @ TDC
106°
110°
.115
.119
.121
.126
.122
.154
.158
.153
.162
.156
.159
.101
.105
.108
.112
.108
.140
.144
.139
.147
.142
.146
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
2.20
2.30
2.40
.832
.834
.827
.825
.836
.836
.840
.823
.845
.834
.827
.869
.872
.865
.863
.874
.874
.879
.860
.883
.872
.865
.907
.910
.902
.900
.912
.912
.917
.898
.922
.910
.902
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
CAMSHAFT TYPE
LOBE #
RATED
DURATION
BB & GG COT
Rated Duration @
.875" Min. Dia.
MI 33.1 (16.1/17.0)
17238
17239
17240
17241
17242
BB & GG COT
Rated Duration @
.875" Min. Dia.
MI 34.1 (16.5/17.6)
DURATION IN DEGREES
@ .050
@ .200
280
282
284
286
288
247
249
251
253
255
158
160
162
163
165
17244
17245
17246
17248
290
292
294
298
256
258
260
264
165
167
169
173
CAMSHAFT TYPE
LOBE #
RATED
DURATION
TDP Flat Plate
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 29.6 (14.4/15.2)
9635
9636
9637
9638
9639
270
272
274
276
278
CAMSHAFT TYPE
LOBE #
RATED
DURATION
TDP 2 Flat Plate
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 29.6 (14.4/15.2)
9631
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
2.2
2.3
2.4
106°
110°
.369
.370
.371
.372
.373
.102
.105
.109
.112
.116
.088
.092
.095
.098
.102
.812
.814
.816
.818
.821
.849
.851
.853
.856
.858
.886
.888
.890
.893
.895
.376
.377
.378
.380
.115
.118
.121
.128
.101
.104
.108
.114
.827
.829
.832
.836
.865
.867
.869
.874
.902
.905
.907
.912
TDP FLAT PLATE
DURATION IN DEGREES
@ .050
@ .200
241
243
245
247
249
154
156
158
160
162
LOBE LIFT
.354
.356
.358
.360
.362
TAPPET LIFT @ TDC
106°
110°
.094
.098
.102
.105
.109
.081
.084
.088
.091
.095
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
2.0
2.1
2.2
.708
.712
.716
.720
.724
.743
.748
.752
.756
.760
.779
.783
.788
.792
.796
TDP 2 FLAT PLATE
DURATION IN DEGREES
@ .050
@ .200
270
241
154
9632
272
243
9633
274
245
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
2.0
2.1
2.2
106°
110°
.344
.094
.081
.688
.722
.757
156
.346
.098
.084
.692
.727
.761
158
.348
.102
.088
.696
.731
.766
TDP FLAT PLATE − LOWER LOBE LIFT
CAMSHAFT TYPE
LOBE #
RATED
DURATION
TDP − LLL
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 29.6 (14.4/15.2)
9602
9603
9604
9605
9606
9608
270
272
274
276
278
280
DURATION IN DEGREES
@ .050
@ .200
241
243
245
247
249
251
153
155
157
159
161
163
LOBE LIFT
.334
.336
.338
.340
.342
.344
TAPPET LIFT @ TDC
106°
110°
.094
.098
.102
.105
.109
.112
.081
.084
.088
.091
.095
.098
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
2.0
2.1
2.2
.668
.672
.676
.680
.684
.688
.701
.706
.710
.714
.718
.722
.735
.739
.744
.748
.752
.757
SOLID FLAT TAPPET
BB GG .875" PLATE
SOLID FLAT TAPPET
SOLID FLAT TAPPET
HY SERIES FLAT PLATE
CAMSHAFT TYPE
LOBE #
RATED
DURATION
HY Flat Plate
Rated Duration @
.020" Tappet Lift
.875" Min. Dia.
MI 29.0 (14.1/14.9)
9829
9830
9831
9832
9833
9834
9835
9837
273
275
277
279
281
283
285
289
DURATION IN DEGREES
@ .050
@ .200
244
246
248
250
252
254
256
260
159
161
163
165
167
169
171
175
LOBE LIFT
.348
.350
.352
.354
.356
.358
.360
.364
TAPPET LIFT @ TDC
106°
110°
.103
.107
.110
.114
.118
.121
.125
.133
.089
.092
.096
.099
.103
.107
.110
.118
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
2.0
2.1
2.2
.696
.700
.704
.708
.712
.716
.720
.728
.731
.735
.739
.743
.748
.752
.756
.764
.766
.770
.774
.779
.783
.788
.792
.801
CHRYSLER SPECIAL SOLIDS
These lobes are for use only in Chrysler Corporation engines with .904" tappet diameter. The "Specials" are to be used in 426c.i. or larger engines. Developed
for the Top Fuel drag racing program, these designs offer excellent torque and horsepower.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
Chrysler Special
Rated Duration @
.020" Tappet Lift
.904" Min. Dia.
MI 37.8 (16.8/21.0)
6129
6130
6132
6133
6131
6134
324-7
328-10
330-1
330-2
334-1
335-1
DURATION IN DEGREES
@ .050
@ .200
290
296
290
292
296
300
200
208
200
200
203
207
LOBE LIFT
.433
.425
.410
.395
.413
.438
TAPPET LIFT @ TDC
106°
110°
.176
.193
.170
.175
.186
.193
.161
.178
.154
.160
.171
.177
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.650
.638
.615
.592
.620
.657
.693
.680
.656
.632
.660
.700
.736
.723
.697
.671
.702
.745
MP SOLIDS
The MP Series uses a design similar to the TL Series except these have more area due to being designed with more velocity for a .904" minimum tappet
diameter. They are very good in Late Model Stock applications where rules allow the larger tappet diameter. Note: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
MP Solids
Rated Duration @
.020" Tappet Lift
.904" Min. Dia.
.018" Lash
6610
DURATION IN DEGREES
@ .050
@ .200
274
247
162
6611
284
251
6612
288
256
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
106°
110°
.345
.108
.093
.518
.552
.587
166
.355
.115
.100
.533
.568
.604
171
.365
.123
.108
.548
.584
.621
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID FLAT TAPPET
MM solids are similar to the MH and MHF Series but have even more velocity and more area to take complete advantage of the larger .904" Chrysler/Mopar
lifter. Please consult with a COMP Cams® CAM HELP® technician or one of our Engine Builder Sales personnel before using these profiles to reduce the risk
from improper component selection. Note: Cams using these lobes should have provisions for increased oiling. Please consult with our tech representative.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
MM
Rated Duration @
.020" Tappet Lift
.904" Min. Dia.
.018" Lash
MI 25.6 (12.3/13.3)
6580
6581
6582
6579
6583
6584
6585
6586
6587
6588
6589
6590
6591
261
265
269
271
273
277
281
285
289
293
297
301
305
DURATION IN DEGREES
@ .050
@ .200
235
239
243
245
247
251
255
259
263
267
271
275
279
153
157
161
163
165
169
173
177
181
185
189
193
197
LOBE LIFT
.350
.358
.366
.370
.373
.380
.388
.396
.404
.411
.418
.426
.433
TAPPET LIFT @ TDC
106°
110°
.089
.096
.104
.108
.111
.119
.126
.134
.142
.149
.157
.164
.172
.075
.082
.089
.093
.096
.104
.111
.119
.126
.134
.142
.149
.157
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.525
.537
.549
.554
.560
.570
.582
.594
.606
.617
.627
.639
.650
.560
.573
.586
.591
.597
.608
.621
.634
.646
.658
.669
.682
.693
.595
.609
.622
.628
.634
.646
.660
.673
.687
.699
.711
.724
.736
SOLID FLAT TAPPET
MM SOLIDS
SOLID ROLLER
SOLID ROLLER
SOLID ROLLER (A = BASE FOR STD JOURNAL)
HIGH ENERGY™ STREET ROLLER
Designed specifically for street use, these Street Rollers offer unique approach ramps, allowing the use of lower seat pressure to ensure long life. These lobes
are very "soundy" or "throaty" because of the opening and closing ramp designs.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
High Energy Street
Rated Duration @
.015" Tappet Lift
Valve Lash
.020"
MI 35.0 (17.5/17.5)
1496
4002
1498
1474
1476
4220
4221
268HER-2
272HER-2
276HER-2
280HER-2
288HER-4
300HER-2
308HER-4
™
DURATION IN DEGREES
@ .050
@ .200
224
228
232
236
244
255
262
141
144
148
152
158
170
176
LOBE LIFT
.3500
.3500
.3500
.3666
.3666
.3833
.3833
TAPPET LIFT @ TDC
106°
110°
.068
.073
.078
.085
.098
.119
.130
.056
.061
.066
.072
.084
.104
.115
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.525
.525
.525
.550
.550
.575
.575
.560
.560
.560
.587
.587
.613
.613
.595
.595
.595
.623
.623
.652
.652
XTREME ENERGY™ STREET ROLLER
This newest addition to the Xtreme family of lobes delivers the responsiveness, torque and reliability only available with COMP Cams® Xtreme designs coupled
with the high RPM power of modern race roller designs. Our development test included Spintron dynamics evaluations, engine dyno testing, chassis dyno testing
and three Hot Rod Power Tours. Coupled with the COMP Cams® Endure-X™ Roller Lifters, these profiles bring street roller technology into the new millennium.
CAMSHAFT TYPE
Xtreme Energy
Street Roller
Standard Ratio
Rated Duration @
.015" Tappet Lift
Valve Lash
.014"-.018"
™
Journal = I,S,B,R…
MI 28.9 (13.9/15.0)
Xtreme Energy™
Street Roller
High Ratio
Rated Duration @
.015" Tappet Lift
Valve Lash
.014"-.018"
Journal = I,T,S,R…
MI 32.0 (14.7/17.3)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
256XSR
262XSR
268XSR
274XSR
280XSR
286XSR
292XSR
298XSR
304XSR
310XSR
218
224
230
236
242
248
254
260
266
272
141
147
153
159
164
170
176
181
187
193
.360
.360
.368
.376
.380
.384
.388
.392
.398
.404
.056
.066
.076
.087
.098
.110
.122
.135
.137
.159
.045
.053
.062
.072
.083
.094
.106
.118
.130
.143
.540
.540
.552
.564
.570
.576
.582
.588
.597
.606
.576
.576
.589
.602
.608
.614
.621
.627
.637
.646
.612
.612
.626
.639
.646
.653
.660
.666
.677
.687
4850
4851
4855
4854
4852
4853
4856
4857
4858
4859
4860
4861
259
265
267
270
274
280
284
288
292
296
300
308
219
225
227
230
234
240
244
248
252
256
260
268
131
136
138
140
144
149
152
155
161
164
167
173
.330
.330
.330
.330
.330
.335
.335
.335
.346
.346
.346
.346
.055
.064
.067
.070
.076
.086
.092
.099
.106
.112
.119
.132
.045
.053
.055
.058
.064
.053
.079
.085
.092
.099
.105
.118
.495
.495
.495
.495
.495
.503
.503
.503
.519
.519
.519
.519
.528
.528
.528
.528
.528
.536
.536
.536
.554
.554
.554
.554
.561
.561
.561
.561
.561
.570
.570
.570
.588
.588
.588
.588
LOBE LIFT
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
These lobes are similar to the Xtreme Energy™ Street Rollers and are optimized for the GM Duramax applications. Intake profiles are designed around a
1.37:1 ratio and exhaust profiles for a 1.69:1 ratio. The exhaust lobes are slightly less aggressive for the Duramax valve train system. These profiles are
designed for .006" to .010" cold lash. The exhaust lobes go up in 14° increments compared to 12° for the intakes in order to reduce exhaust pumping losses
in higher RPM applications.
CAMSHAFT TYPE
Xtreme Energy™
Duramax Int.
Rated Duration @
.006" Tappet Lift
MI 28.4 (13.6/14.8)
Xtreme Energy™
Duramax Exh.
Rated Duration @
.006" Tappet Lift
MI 32.4 (15.7/16.7)
LOBE #
RATED
DURATION
4884
4910
4886
4911
4888
4912
4904
4913
246
245
258
257
270
269
281
281
4894
4915
4896
4916
4898
4917
4908
4918
254
254
268
268
282
282
294
297
DURATION IN DEGREES
@ .050
@ .200
185
185
197
197
209
209
221
221
106
111
119
123
132
135
144
147
@ .050
@ .200
188
188
202
202
216
216
228
228
84
95
101
110
117
123
129
136
LOBE LIFT
.306
.346
.329
.366
.350
.381
.363
.396
.249
.281
.266
.297
.284
.309
.294
.321
106°
110°
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.37
.019
.019
.030
.030
.044
.044
.062
.062
.014
.014
.022
.022
.034
.034
.050
.050
.419
.474
.451
.501
.480
.522
.497
.543
106°
110°
1.69
.028
.028
.041
.041
.057
.057
.073
.073
.022
.022
.033
.033
.047
.047
.062
.062
.421
.475
.450
.502
.480
.522
.497
.542
TAPPET LIFT @ TDC
SOLID ROLLER
XTREME ENERGY™ DURAMAX STREET ROLLERS
SOLID ROLLER
SOLID ROLLER
BASE DESIGN ROLLERS
A twenty year culmination of design and research, these lobes range from extra gentle to very aggressive. Included in this group are the High Torque Roller and
High Torque Oval Roller Series used in the early 80s.
CAMSHAFT TYPE
Base Design
Rated Duration @
.020" Tappet Lift
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
1460
1462
1464
1465
4034
1473
1466
285-2
286-1
295-2
295-3
295-5
296-1
296-2
252
250
262
262
260
260
265
164
162
174
176
170
173
180
.375
.392
.366
.390
.394
.393
.400
.110
.112
.128
.128
.116
.124
.137
.096
.096
.114
.113
.102
.108
.121
.563
.588
.549
.585
.591
.590
.600
.600
.627
.586
.624
.630
.629
.640
.638
.666
.622
.663
.670
.668
.680
1677
4000
1609
4035
4059
4242
1611
1612
1613
1479
4066
4244
1617
1628
1658
1620
1486
4025
1469
4062
4087
1630
1394
1659
1639
1619
1392
302-1
305-2
305-3
305-4
306-1
306-2
308-2
309-2
310-2
312-2
316-1
316-2
316-3
324-4
320-1
320-2
321-4
322-1
322-2
323-5
324-2
325-4
327-5
328-1
329-5
319-2
319-3
265
272
270
272
270
273
275
276
280
279
276
284
282
287
281
288
284
282
288
287
286
288
290
286
292
285
285
177
186
186
184
186
190
191
196
195
197
186
200
200
201
196
201
196
193
204
202
197
198
204
192
200
202
200
.395
.366
.418
.394
.400
.416
.452
.420
.545
.425
.413
.433
.454
.423
.450
.434
.440
.427
.458
.460
.454
.440
.460
.413
.440
.456
.460
.132
.146
.146
.151
.145
.153
.156
.163
.165
.167
.150
.176
.173
.174
.164
.179
.170
.163
.185
.180
.171
.176
.179
.163
.177
.179
.173
.117
.132
.130
.135
.130
.137
.139
.146
.147
.150
.134
.159
.156
.159
.148
.163
.154
.147
.165
.164
.155
.160
.163
.145
.161
.161
.156
.593
.549
.627
.591
.600
.624
.678
.630
.818
.638
.620
.650
.681
.635
.675
.651
.660
.641
.687
.690
.681
.660
.690
.620
.660
.684
.690
.632
.586
.669
.630
.640
.666
.723
.672
.872
.680
.661
.693
.726
.677
.720
.694
.704
.683
.733
.736
.726
.704
.736
.661
.704
.730
.736
.672
.622
.711
.670
.680
.707
.768
.714
.927
.723
.702
.736
.772
.719
.765
.738
.748
.726
.779
.782
.772
.748
.782
.702
.748
.775
.782
LOBE LIFT
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
These designs are typically used with high rocker ratios (1.65-1.75) and efficient cylinder heads. The Hi-Tech™ .400" is great for Big Block Chevy, Big Block
Fords and Clevelands. Due to their lower acceleration rates, these lobe designs are also very well suited for small block, high endurance applications.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
Hi-Tech™
Rated Duration @
.020" Tappet Lift
MI 36.5 (18.8/17.7)
1461
4210
4211
4058
288-7
296-7
306-7
316-7
DURATION IN DEGREES
@ .050
@ .200
251
259
269
279
167
175
182
190
LOBE LIFT
.400
.400
.400
.400
TAPPET LIFT @ TDC
106°
110°
.116
.129
.146
.161
.102
.114
.131
.146
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.600
.600
.600
.600
.640
.640
.640
.640
.680
.680
.680
.680
HI-TECH™ .420" EXHAUST ROLLERS
These designs are used primarily on the exhaust side of the motor. The Hi-Tech™ .420" Exhaust Rollers offer controlled valve opening which promotes torque
over broad ranges.
CAMSHAFT TYPE
Hi-Tech™ .420" Exh.
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 37.0 (18.5/18.5)
LOBE #
RATED
DURATION
4005
4007
4003
4027
4029
4023
4046
4045
4047
4019
4049
294-6
296-6
298-6
300-6
302-6
304-6
306-6
308-6
310-6
312-6
316-6
DURATION IN DEGREES
@ .050
@ .200
256
258
260
262
264
266
268
270
272
274
278
171
173
175
177
179
180
182
183
185
187
189
LOBE LIFT
.420
.420
.420
.420
.420
.420
.420
.420
.420
.420
.420
TAPPET LIFT @ TDC
106°
110°
.117
.123
.125
.130
.133
.137
.141
.144
.148
.151
.158
.103
.108
.111
.115
.117
.122
.126
.129
.133
.136
.142
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.630
.630
.630
.630
.630
.630
.630
.630
.630
.630
.630
.672
.672
.672
.672
.672
.672
.672
.672
.672
.672
.672
.714
.714
.714
.714
.714
.714
.714
.714
.714
.714
.714
SOLID ROLLER
HI-TECH™ ROLLERS
SOLID ROLLER
SOLID ROLLER
HI-TECH™ .420" ROLLERS
The Hi-Tech™ .420" Rollers are primarily used in oval track racing with good cylinder heads. The ramp designs are easy on valve springs yet produce good
power. They are great for long rod motors. They are also popular in bracket and marine applications where power with durability is a must. Also available in
Small Block Ford and Big Block Chevy or 50mm sizes to prevent "cam growth" in the grinding process, allowing the engine builder to have more control over
the tuning process.
CAMSHAFT TYPE
Hi-Tech™ .420" Exh.
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 37.0 (18.5/18.5)
LOBE #
RATED
DURATION
4001
4004
4006
4009
4008
4013
4017
4015
4022
4020
4024
4018
4026
4016
4028
4030
4031
4032
284-5
286-5
288-5
290-5
292-5
294-5
296-5
298-5
300-5
302-5
304-5
306-5
308-5
310-5
312-5
314-5
316-5
318-5
DURATION IN DEGREES
@ .050
@ .200
248
250
252
254
256
258
260
262
264
266
268
270
272
274
276
278
280
282
165
167
169
171
173
175
177
179
181
183
184
186
188
189
190
192
193
195
LOBE LIFT
.420
.420
.420
.420
.420
.420
.420
.420
.420
.420
.420
.420
.420
.420
.420
.420
.420
.420
TAPPET LIFT @ TDC
106°
110°
.108
.112
.116
.119
.123
.127
.131
.136
.140
.143
.146
.150
.154
.157
.160
.163
.166
.170
.094
.098
.101
.105
.108
.112
.116
.120
.124
.127
.130
.134
.138
.141
.144
.148
.151
.154
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.630
.630
.630
.630
.630
.630
.630
.630
.630
.630
.630
.630
.630
.630
.630
.630
.630
.630
.672
.672
.672
.672
.672
.672
.672
.672
.672
.672
.672
.672
.672
.672
.672
.672
.672
.672
.714
.714
.714
.714
.714
.714
.714
.714
.714
.714
.714
.714
.714
.714
.714
.714
.714
.714
HI-TECH™ .440" INTAKE ROLLERS
These lobes are to be used in medium to large cubic inch engines. The Hi-Tech .440" are designed with ported cylinder heads in mind and are easy on springs.
These designs are very stable at high engine speeds.
CAMSHAFT TYPE
Hi-Tech™ .440" Int.
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 36.7 (19.0/17.7)
LOBE #
RATED
DURATION
3207
4076
4119
4077
4078
4079
4080
4081
4082
296-16
301-6
303-6
305-6
309-6
313-6
317-6
321-6
325-6
DURATION IN DEGREES
@ .050
@ .200
260
264
266
268
272
276
280
284
287
178
181
183
184
187
189
192
195
198
LOBE LIFT
.440
.440
.440
.440
.440
.440
.440
.440
.440
TAPPET LIFT @ TDC
106°
110°
.132
.141
.144
.147
.153
.157
.161
.168
.173
.116
.125
.129
.132
.137
.142
.146
.153
.158
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.660
.660
.660
.660
.660
.660
.660
.660
.660
.704
.704
.704
.704
.704
.704
.704
.704
.704
.748
.748
.748
.748
.748
.748
.748
.748
.748
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The High Torque .420" Exhaust series is primarily used in drag racing applications with or without ported heads and can be used with a variety of rocker ratios.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
High Torque .420" Exh.
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 34.3 (14.8/19.5)
1660
1480
4070
4065
307-4
311-4
317-2
323-6
DURATION IN DEGREES
@ .050
@ .200
275
279
283
288
192
194
197
200
LOBE LIFT
.420
.420
.420
.420
TAPPET LIFT @ TDC
106°
110°
.165
.173
.172
.177
.152
.156
.156
.161
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.630
.630
.630
.630
.672
.672
.672
.672
.714
.714
.714
.714
HIGH TORQUE .460" ROLLERS
The High Torque .460" series is primarily used in drag racing applications with or without ported heads. They are less aggressive than the High Torque .440"
designs.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
High Torque .460"
Rated Duration @
.020" Tappet Lift
Journal = S,B,F,R…
MI 32.6 (16.3/16.3)
1393
DURATION IN DEGREES
@ .050
@ .200
319-7
285
200
4075
323-7
287
1395
327-7
290
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
106°
110°
.460
.180
.163
.690
.736
.782
202
.460
.185
.169
.690
.736
.782
205
.460
.192
.176
.690
.736
.782
HIGH RATIO - HIGH RPM SUPER STOCK ROLLERS
These profiles are designed to increase high RPM performance in NHRA Super Stock applications when coupled with a 1.8:1 to 2.0:1+ rocker arm. Optimized
for the higher RPM capability of the latest Super Stock cylinder heads.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
High Ratio-High RPM
Super Stock
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 32.0 (14.7/17.3)
4480
4482
4483
4484
4485
4486
298
302
304
306
308
310
DURATION IN DEGREES
@ .050
@ .200
266
270
272
274
276
278
182
186
188
189
191
193
LOBE LIFT
.414
.414
.414
.414
.416
.418
TAPPET LIFT @ TDC
106°
110°
.136
.143
.147
.151
.155
.160
.119
.127
.131
.135
.139
.143
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
.745
.745
.745
.745
.749
.752
.787
.787
.787
.787
.790
.794
.828
.828
.828
.828
.832
.836
SOLID ROLLER
HIGH TORQUE .420" EXHAUST ROLLERS
SOLID ROLLER
SOLID ROLLER
NC ROLLERS
Designed with aggressive opening side of the RT Series lobes and the easier closing rate of the ever popular Hi-Tech™ -5 series, the NC series allows good
engine speed, stability and durability. This fast open, slower closing design works very well on the exhaust side of many applications.
CAMSHAFT TYPE
NC
Rated Duration @
.020" Tappet Lift
Journal = S,B,F,R…
MI 32.0 (14.5/17.5)
LOBE #
RATED
DURATION
4151
4152
4150
4153
4149
4145
4147
4144
4146
4143
4148
284
286
288
290
292
295
296
298
300
302
304
DURATION IN DEGREES
@ .050
@ .200
252
254
256
258
260
262
264
266
268
270
272
172
173
177
178
181
183
183
185
187
190
192
LOBE LIFT
.405
.405
.415
.415
.421
.421
.421
.425
.430
.430
.430
TAPPET LIFT @ TDC
106°
110°
.115
.117
.123
.125
.131
.138
.140
.143
.146
.153
.158
.099
.101
.107
.109
.114
.122
.123
.127
.130
.136
.141
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.608
.608
.623
.623
.632
.632
.632
.638
.645
.645
.645
.648
.648
.664
.664
.674
.674
.674
.680
.688
.688
.688
.689
.689
.706
.706
.716
.716
.716
.723
.731
.731
.731
NSC ROLLERS
The NSC series is very similar to the original NC series but uses a smoother -6 style closing ramp. This fast open, slower closing design works very well on the
exhaust side of many applications, especially those that are larger displacement or higher engine speeds than where the original NC designs would be used.
CAMSHAFT TYPE
NSC
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 33.0 (14.4/18.6)
LOBE #
RATED
DURATION
4163
4167
4168
4162
4160
4164
4165
4166
309
311
313
315
317
319
321
323
DURATION IN DEGREES
@ .050
@ .200
276
278
280
282
284
286
288
290
195
196
198
200
201
203
205
207
LOBE LIFT
.440
.440
.440
.440
.440
.440
.440
.440
TAPPET LIFT @ TDC
106°
110°
.167
.170
.174
.178
.181
.185
.189
.193
.150
.154
.158
.162
.165
.169
.173
.177
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.660
.660
.660
.660
.660
.660
.660
.660
.704
.704
.704
.704
.704
.704
.704
.704
.748
.748
.748
.748
.748
.748
.748
.748
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The RZ Rollers are designed for high RPM circle track, drag race and endurance applications that benefit from higher lift while requiring stability and reliability.
Designed for 1.6:1 to 1.8:1 rockers, these profiles incorporate the latest developments in high RPM and high rocker ratio developments.
CAMSHAFT TYPE
RZ
Rated Duration @
.020" Tappet Lift
Journal = S,B,F,R…
MI 33.0 (15.0/18.0)
LOBE #
RATED
DURATION
4260
4261
4262
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4276
4277
RZ293
RZ295
RZ297
RZ301
RZ303
RZ305
RZ307
RZ309
RZ311
RZ313
RZ315
RZ317
RZ319
RZ321
RZ325
RZ329
DURATION IN DEGREES
@ .050
@ .200
260
262
264
268
270
272
274
276
278
280
282
284
286
288
292
296
174
176
178
182
184
186
188
190
192
194
196
197
199
201
205
208
LOBE LIFT
.428
.430
.430
.432
.433
.434
.435
.436
.437
.438
.439
.440
.441
.442
.444
.446
TAPPET LIFT @ TDC
106°
110°
.122
.126
.129
.137
.141
.145
.149
.153
.157
.161
.164
.168
.172
.176
.183
.191
.107
.111
.114
.122
.125
.129
.133
.137
.141
.145
.148
.152
.156
.160
.167
.175
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.642
.645
.645
.648
.650
.651
.653
.654
.656
.657
.659
.660
.662
.663
.666
.669
.685
.688
.688
.691
.693
.694
.696
.698
.699
.701
.702
.704
.706
.707
.710
.714
.728
.731
.731
.734
.736
.738
.740
.741
.743
.745
.746
.748
.750
.751
.755
.758
RZ LOW LIFT ROLLERS
These lower lift versions of the RZ family work very well in high endurance applications where maximum valve lift needs to be limited to ensure maximum
valve spring life.
CAMSHAFT TYPE
RZ Low Lift
Rated Duration @
.020" Tappet Lift
Journal = S,B,F,R…
MI 33.0 (15.0/18.0)
LOBE #
RATED
DURATION
2314
2315
4294
2318
4293
4295
4283
4286
4284
4278
4285
4287
4296
4279
2735
2298
283
287
289
291
291
293
295
295
297
299
301
301
303
305
315
317
DURATION IN DEGREES
@ .050
@ .200
250
254
256
258
258
260
262
262
264
266
268
268
270
272
282
284
161
164
167
168
171
171
171
175
174
178
178
180
181
182
194
193
LOBE LIFT
.370
.370
.390
.370
.400
.390
.370
.400
.375
.400
.380
.400
.385
.380
.420
.380
TAPPET LIFT @ TDC
106°
110°
.103
.110
.113
.117
.118
.121
.124
.125
.128
.133
.135
.136
.139
.143
.164
.163
.089
.096
.099
.103
.103
.106
.110
.110
.113
.118
.121
.121
.125
.128
.148
.149
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.555
.555
.585
.555
.600
.585
.555
.600
.563
.600
.570
.600
.578
.570
.630
.570
.592
.592
.624
.592
.640
.624
.592
.640
.600
.640
.608
.640
.616
.608
.672
.608
.629
.629
.663
.629
.680
.663
.629
.680
.638
.680
.646
.680
.655
.646
.714
.646
SOLID ROLLER
RZ ROLLERS
SOLID ROLLER
SOLID ROLLER
AS ENDURANCE ROLLERS
The AS Endurance Roller lobe family is for use in 24-hour or longer endurance roller cam applications or where a slow camshaft is desired to reduce power or
shape the torque curve.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
20540
20541
20542
20519
20520
277
281
285
289
293
244
248
252
256
260
153
157
161
167
171
.360
.360
.360
.380
.380
.094
.101
.108
.115
.122
.082
.088
.094
.101
.108
.576
.576
.576
.608
.608
.612
.612
.612
.646
.646
.648
.648
.648
.684
.684
ASX
Rated Duration @
.020" Tappet Lift
20525
300
266
175
.380
.132
.118
.608
.646
.684
ALI
Rated Duration @
.020" Tappet Lift
20515
20521
20522
284
288
292
252
256
260
166
170
173
.400
.400
.400
.111
.117
.125
.097
.103
.110
.640
.640
.640
.680
.680
.680
.720
.720
.720
ALX
Rated Duration @
.020" Tappet Lift
20527
300
266
177
.400
.134
.119
.640
.680
.720
20572
255
222
133
.336
.061
.050
.538
.571
.605
20574
263
230
140
.336
.078
.066
.538
.571
.605
CAMSHAFT TYPE
ASI
Rated Duration @
.020" Tappet Lift
MI 33.1 (15.7/17.4)
ALL
Rated Duration @
.020" Tappet Lift
LOBE LIFT
SRI SRX HIGH RATIO ROLLER
The SRI and SRX are extremely smooth high rocker ratio designs, especially suited for engines with very high ratios or any application than needs a very smooth
profile.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
SRI
Rated Duration @
.020" Tappet Lift
MI 35.6 (17.1/18.5)
12260
SRX
Rated Duration @
.020" Tappet Lift
MI 35.2 (17.0/18.2)
DURATION IN DEGREES
@ .050
@ .200
291
255
163
12261
293
257
12262
295
12266
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.9
2.1
2.3
106°
110°
.3925
.111
.098
.746
.824
.903
165
.3925
.115
.101
.746
.824
.903
259
167
.3925
.118
.105
.746
.824
.903
305
270
178
.4050
.136
.122
.770
.851
.932
12267
307
272
180
.4050
.140
.125
.770
.851
.932
12268
309
274
182
.4050
.143
.129
.770
.851
.932
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
RT ROLLERS
The RT Series provides shorter seat timing and more area than our Hi-Tech™ .420" Series. This results in great torque and power potential. Available in Small
Block Ford and Big Block Chevy or 50mm sizes to prevent "cam growth" in the grinding process, allowing the engine builder to have more control over the
tuning process of the cam.
CAMSHAFT TYPE
RT
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 30.6 (14.4/16.2)
LOBE #
RATED
DURATION
4121
4123
4124
4126
4127
4130
4128
4129
4131
4132
4133
4134
4135
4136
4137
4139
4138
RT274-1
RT276-2
RT278-3
RT280-1
RT282-1
RT284-1
RT286-1
RT288-1
RT290-1
RT292-1
RT294-1
RT296-1
RT298-1
RT300-1
RT302-1
RT304-1
RT308-1
DURATION IN DEGREES
@ .050
@ .200
244
246
248
250
252
254
256
258
260
262
264
266
268
270
272
274
278
167
169
171
173
175
177
179
181
183
185
186
189
190
191
193
195
197
LOBE LIFT
.410
.412
.414
.416
.418
.421
.423
.426
.430
.430
.430
.430
.435
.435
.435
.435
.435
TAPPET LIFT @ TDC
106°
110°
.101
.105
.107
.113
.117
.120
.125
.131
.134
.140
.142
.148
.150
.154
.158
.162
.168
.086
.089
.092
.097
.101
.104
.109
.114
.117
.123
.125
.130
.132
.137
.141
.144
.151
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.615
.618
.621
.624
.627
.632
.635
.639
.645
.645
.645
.645
.653
.653
.653
.653
.653
.656
.659
.662
.666
.669
.674
.677
.682
.688
.688
.688
.688
.696
.696
.696
.696
.696
.697
.700
.704
.707
.711
.716
.719
.724
.731
.731
.731
.731
.740
.740
.740
.740
.740
SOLID ROLLER
SOLID ROLLER (B = BASE FOR STD JOURNAL)
SOLID ROLLER
SOLID ROLLER
CR ROLLERS
The CR Series profiles are excellent for high RPM, high rocker ratio applications where good valve train components can be used. The smaller profiles work well
in restricted applications where extended life is required, and the larger profiles are excellent in high RPM open applications.
CAMSHAFT TYPE
CR
Rated Duration @
.020" Tappet Lift
Journal = S,B,F,R…
MI 31.2 (14.5/16.7)
LOBE #
RATED
DURATION
4345
4346
4347
4348
4349
4382
4383
4384
4385
4386
2486
4387
4388
2488
4389
2489
4390
2490
4391
4682
2492
4683
4684
2494
4685
4686
4687
CR281
CR283
CR285
CR287
CR289
CR291
CR293
CR295
CR297
CR299
299
CR301
CR303
303
CR305
305
CR307
307
CR309
CR311
311
CR313
CR315
315
CR317
CR319
CR321
DURATION IN DEGREES
@ .050
@ .200
250
252
254
256
258
260
262
264
266
268
268
270
272
272
274
274
276
276
278
280
280
282
284
284
286
288
290
168
170
172
174
176
178
179
181
183
185
186
186
188
190
190
192
192
194
193
195
198
197
199
201
200
202
204
LOBE LIFT
.395
.395
.395
.395
.395
.395
.395
.395
.395
.395
.420
.395
.395
.420
.395
.420
.395
.420
.395
.395
.420
.395
.395
.420
.395
.395
.395
TAPPET LIFT @ TDC
106°
110°
.111
.115
.119
.123
.127
.131
.135
.139
.143
.147
.147
.150
.154
.156
.158
.160
.161
.164
.165
.169
.172
.172
.176
.180
.180
.183
.187
.096
.100
.104
.107
.111
.115
.119
.123
.127
.131
.131
.134
.138
.139
.142
.143
.146
.147
.149
.153
.155
.157
.161
.163
.165
.168
.172
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.75
1.8
.672
.672
.672
.672
.672
.672
.672
.672
.672
.672
.714
.672
.672
.714
.672
.714
.672
.714
.672
.672
.714
.672
.672
.714
.672
.672
.672
.691
.691
.691
.691
.691
.691
.691
.691
.691
.691
.735
.691
.691
.735
.691
.735
.691
.735
.691
.691
.735
.691
.691
.735
.691
.691
.691
.711
.711
.711
.711
.711
.711
.711
.711
.711
.711
.756
.711
.711
.756
.711
.756
.711
.756
.711
.711
.756
.711
.711
.756
.711
.711
.711
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
These low lift designs are based on the CR Rollers and are specifically designed for lift rule application such as Rev-Oil Pro Cup. Typically they will be used with
either 1.65:1 or 1.7:1 rocker ratios, but would be stable with up to 1.8:1 ratios.
CAMSHAFT TYPE
CR Lift Rule .367"
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 31.2 (14.5/16.7)
CR Lift Rule .378"
Rated Duration @
.020" Tappet Lift
Journal = S,B,F,R…
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.9
2.1
2.3
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
4436
4427
4428
4429
4430
4431
4432
4433
4438
275
279
283
287
291
295
299
303
307
244
248
252
256
260
264
268
272
276
161
165
168
172
175
179
182
186
189
.367
.367
.367
.367
.367
.367
.367
.367
.367
.100
.107
.115
.123
.130
.138
.146
.153
.159
.085
.092
.100
.107
.115
.122
.130
.137
.145
.587
.587
.587
.587
.587
.587
.587
.587
.587
.606
.606
.606
.606
.606
.606
.606
.606
.606
.624
.624
.624
.624
.624
.624
.624
.624
.624
4445
4447
4449
4451
283
287
291
295
252
256
260
264
168
172
175
179
.378
.378
.378
.378
.115
.123
.131
.138
.100
.107
.115
.123
.605
.605
.605
.605
.624
.624
.624
.624
.643
.643
.643
.643
LOBE LIFT
RX ROLLERS
These are similar to the RT Series but are designed for a higher RPM operating range. These were developed to allow the performance of RT designs in applications that operate well over 8400 RPM, such as the NASCAR engines. RX profiles were developed using dynamic testing to ensure stability over 9000 RPM,
even when coupled with a 1.7:1 rocker arm.
CAMSHAFT TYPE
RX
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 32.6 (15.5/17.1)
LOBE #
RATED
DURATION
4301
4302
4303
4304
4305
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4340
4341
286
288
290
292
294
296
298
300
302
304
306
308
310
312
314
316
318
320
322
DURATION IN DEGREES
@ .050
@ .200
253
255
257
259
261
263
265
267
269
271
273
275
277
279
281
283
285
287
289
172
174
176
177
179
181
183
185
187
189
191
193
195
197
199
201
203
205
207
LOBE LIFT
.427
.428
.429
.430
.431
.432
.433
.434
.435
.436
.437
.438
.439
.440
.440
.440
.440
.440
.440
TAPPET LIFT @ TDC
106°
110°
.114
.118
.122
.126
.130
.134
.139
.143
.147
.151
.155
.160
.164
.168
.172
.176
.180
.185
.189
.099
.103
.107
.110
.114
.118
.122
.126
.130
.134
.138
.143
.147
.151
.155
.159
.163
.167
.172
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.641
.642
.644
.645
.647
.648
.650
.651
.653
.654
.656
.657
.659
.660
.660
.660
.660
.660
.660
.683
.685
.686
.688
.690
.691
.693
.694
.696
.698
.699
.701
.702
.704
.704
.704
.704
.704
.704
.726
.728
.729
.731
.733
.734
.736
.738
.740
.741
.743
.745
.746
.748
.748
.748
.748
.748
.748
SOLID ROLLER
CR LIFT RULE ROLLERS
SOLID ROLLER
SOLID ROLLER
TC ROLLERS
The TC lobes are specially designed to be stable in small base circle applications or where short duration and high lift are required.
CAMSHAFT TYPE
TC
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 31.3 (15.4/15.9)
LOBE #
RATED
DURATION
11460
11462
11464
11466
11468
11470
11472
11474
11476
267
271
275
279
283
287
291
295
299
DURATION IN DEGREES
@ .050
@ .200
236
240
244
248
252
256
260
264
268
156
160
164
168
172
176
180
184
188
LOBE LIFT
.420
.424
.428
.432
.436
.440
.444
.448
.452
TAPPET LIFT @ TDC
106°
110°
.085
.092
.099
.106
.114
.122
.130
.138
.146
.072
.079
.085
.092
.099
.106
.114
.122
.130
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.630
.636
.642
.648
.654
.660
.666
.672
.678
.672
.678
.685
.691
.698
.704
.710
.717
.723
.714
.721
.728
.734
.741
.748
.755
.762
.768
ZT ROLLERS
The ZT Rollers are a high rocker ratio, high RPM series designed to take advantage of valve spring developments that allow valve lifts up to and above .750" in
endurance applications. These are designed for NASCAR and other endurance applications that have similar RPM and lift requirements.
CAMSHAFT TYPE
ZT
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 31.5 (15.4/16.2)
LOBE #
RATED
DURATION
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4826
4827
290
292
294
296
298
300
302
304
306
308
310
312
314
DURATION IN DEGREES
@ .050
@ .200
258
260
262
264
266
268
270
272
274
276
278
280
282
175
177
179
181
182
184
186
188
190
192
194
196
198
LOBE LIFT
.406
.407
.408
.409
.410
.411
.412
.413
.412
.416
.418
.418
.420
TAPPET LIFT @ TDC
106°
110°
.124
.128
.133
.137
.141
.145
.149
.153
.157
.161
.165
.169
.173
.110
.114
.117
.121
.125
.129
.133
.137
.141
.144
.149
.152
.157
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.75
1.8
.690
.692
.694
.695
.697
.699
.700
.702
.700
.707
.711
.711
.714
.711
.712
.714
.716
.718
.719
.721
.723
.721
.728
.732
.732
.735
.731
.733
.734
.736
.738
.740
.742
.743
.742
.749
.752
.752
.756
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The ZS Rollers are a high ratio roller series for restricted applications limited to below 8400 RPM. These are very good for applications that benefit from higher
lift than the HRR series. These profiles work well with the new generation valve springs such as COMP Cams® #26099 and #26091. The ZS II lobes are the
same as the .413" lobe lift versions except these have increasing lobe lift as the duration increases.
CAMSHAFT TYPE
ZS .413" Lift
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 30.4 (14.8/15.6)
ZS II
Rated Duration @
.020" Tappet Lift
Journal = S,B,F,R…
MI 30.4 (14.8/15.6)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.75
1.8
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
4402
4404
4405
4406
4407
4408
4409
4416
4418
284
288
290
292
294
296
298
302
306
254
258
260
262
264
266
268
272
276
175
179
181
183
184
186
188
192
195
.413
.413
.413
.413
.413
.413
.413
.413
.413
.122
.130
.134
.139
.143
.147
.151
.159
.167
.106
.114
.118
.122
.126
.130
.134
.142
.150
.702
.702
.702
.702
.702
.702
.702
.702
.702
.723
.723
.723
.723
.723
.723
.723
.723
.723
.743
.743
.743
.743
.743
.743
.743
.743
.743
2950
2952
2953
2954
14255
14256
14257
2958
280
284
286
288
290
292
294
296
250
254
256
258
260
262
264
266
172
176
178
180
182
184
186
188
.420
.424
.426
.428
.430
.432
.433
.434
.114
.122
.126
.131
.135
.139
.143
.147
.098
.106
.110
.114
.118
.122
.126
.130
.714
.721
.724
.728
.731
.734
.736
.738
.735
.742
.746
.749
.753
.756
.758
.760
.756
.763
.767
.770
.774
.778
.779
.781
LOBE LIFT
TD, TJ & TJS ROLLERS
These TD designs are excellent for high ratio, four gauge, 390 carb rules, such as NASCAR applications. The TJs have slightly more lift but are a little smoother
while the TJS rollers are very similar to the TJs except for a slightly softer closing ramp.
CAMSHAFT TYPE
TD
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 30.5 (14.8/15.7)
LOBE #
RATED
DURATION
2978
2979
2980
2981
2982
4321
2983
2984
2985
4327
4328
4329
2989
288
290
292
294
296
298
300
302
304
306
308
310
312
DURATION IN DEGREES
@ .050
@ .200
258
260
262
264
266
268
270
272
274
276
278
280
282
176
178
180
182
184
186
188
190
192
193
195
197
199
LOBE LIFT
.411
.412
.413
.414
.415
.416
.418
.420
.421
.424
.426
.428
.430
TAPPET LIFT @ TDC
106°
110°
.127
.131
.135
.139
.143
.147
.151
.156
.159
.163
.167
.171
.175
.112
.116
.119
.123
.127
.131
.135
.139
.143
.147
.151
.155
.159
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.75
1.8
.699
.700
.702
.704
.706
.707
.711
.714
.716
.721
.724
.728
.731
.719
.721
.723
.725
.726
.728
.732
.735
.737
.742
.746
.749
.753
.740
.742
.743
.745
.747
.749
.752
.756
.758
.763
.767
.770
.774
Continued on page 80
SOLID ROLLER
ZS ROLLERS
SOLID ROLLER
SOLID ROLLER
TD, TJ & TJS ROLLERS Continued
CAMSHAFT TYPE
LOBE #
RATED
DURATION
TJ
Rated Duration @
.020" Tappet Lift
Journal = S,B,F,R…
2962
2963
2964
2965
TJS
Rated Duration @
.020" Tappet Lift
2881
2882
2885
DURATION IN DEGREES
@ .050
@ .200
296
298
300
302
266
268
270
272
184
185
187
189
297
299
305
266
268
274
183
185
191
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.75
1.8
106°
110°
.420
.422
.424
.426
.143
.147
.151
.156
.127
.131
.135
.139
.714
.717
.721
.724
.735
.739
.742
.746
.756
.760
.763
.767
.419
.421
.427
.412
.146
.158
.126
.130
.142
.712
.716
.726
.733
.737
.747
.754
.758
.769
TS ROLLERS
These are an additional series of high rocker ratio profiles that are similar to both the ZT and ZS series, but these are designed for slightly less rocker ratio.
CAMSHAFT TYPE
TS
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 31.0 (15.4/15.6)
LOBE #
RATED
DURATION
4837
4838
4839
4840
4841
4842
295
297
299
301
303
305
DURATION IN DEGREES
@ .050
@ .200
264
266
268
270
272
274
183
185
187
189
191
192
LOBE LIFT
.422
.423
.425
.426
.427
.428
TAPPET LIFT @ TDC
106°
110°
.141
.145
.149
.153
.157
.161
.125
.129
.133
.137
.141
.145
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.75
1.8
.717
.719
.723
.724
.726
.728
.739
.740
.744
.746
.747
.749
.760
.761
.765
.767
.769
.770
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The HRR designs, when coupled with high rocker ratios, result in extremely quick valve action. 8100 RPM maximum with light valve train. Very good in restricted
applications.
CAMSHAFT TYPE
High Ratio Restricted
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 30.0 (14.0/16.0)
LOBE #
RATED
DURATION
4358
4359
4361
4362
4363
4364
4198
4365
4366
4199
4367
4196
4368
4370
4371
4372
4373
4374
4375
4376
4377
4378
HRR260
HRR262
HRR264
HRR266
HRR268
HRR270
272
HRR272
HRR274
276
HRR276
278
HRR278
HRR282
HRR284
HRR286
HRR288
HRR290
HRR292
HRR294
HRR296
HRR298
DURATION IN DEGREES
@ .050
@ .200
230
232
234
236
238
240
242
242
244
246
246
248
248
252
254
256
258
260
262
264
266
268
152
154
156
158
160
162
163
164
166
167
168
169
170
173
175
177
179
180
182
184
186
188
LOBE LIFT
.374
.377
.380
.383
.386
.389
.380
.392
.396
.380
.396
.380
.396
.396
.396
.396
.396
.396
.396
.396
.396
.396
TAPPET LIFT @ TDC
106°
110°
.078
.082
.085
.089
.093
.097
.101
.101
.105
.109
.109
.113
.113
.121
.125
.129
.133
.137
.141
.145
.149
.153
.065
.068
.071
.075
.078
.082
.085
.085
.089
.093
.093
.097
.097
.104
.108
.112
.116
.120
.124
.128
.133
.137
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.75
1.8
.636
.641
.646
.651
.656
.661
.646
.666
.673
.646
.673
.646
.673
.673
.673
.673
.673
.673
.673
.673
.673
.673
.655
.660
.665
.670
.676
.681
.665
.686
.693
.665
.693
.665
.693
.693
.693
.693
.693
.693
.693
.693
.693
.693
.673
.679
.684
.689
.695
.700
.684
.706
.713
.684
.713
.684
.713
.713
.713
.713
.713
.713
.713
.713
.713
.713
RC ROLLERS
The RC rollers are designed to be faster off the seat than the RT profiles with more area than the High Torque .440" profiles. These are slightly less aggressive
than the TK profiles. Very good for Sprint Car and Late Model applications. Also used in some hydraulic roller applications.
CAMSHAFT TYPE
RC
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 30.0 (14.0/16.0)
LOBE #
RATED
DURATION
4176
4178
4180
4181
4182
4183
4184
4185
4186
280
284
288
290
292
294
296
298
300
DURATION IN DEGREES
@ .050
@ .200
250
254
258
260
262
264
266
268
270
175
178
182
184
186
188
190
192
194
LOBE LIFT
.425
.425
.430
.430
.430
.430
.435
.435
.435
TAPPET LIFT @ TDC
106°
110°
.118
.127
.136
.140
.144
.149
.153
.158
.162
.101
.110
.118
.122
.127
.131
.135
.140
.144
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.638
.638
.645
.645
.645
.645
.653
.653
.653
.680
.680
.688
.688
.688
.688
.696
.696
.696
.723
.723
.731
.731
.731
.731
.740
.740
.740
SOLID ROLLER
HIGH RATIO RESTRICTED ROLLERS
SOLID ROLLER
SOLID ROLLER
RP ROLLERS
The RP Rollers are a high ratio roller series for restricted applications limited to below 8400 RPM. These are based off of the latest flat tappet restrictor plate
designs but have increased area as allowed with roller tappets. For use with 1.8 to 1.95:1 rocker ratios.
CAMSHAFT TYPE
RP
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 30.0 (15.0/15.0)
LOBE #
RATED
DURATION
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
270
272
274
276
278
280
282
284
286
288
290
292
294
296
DURATION IN DEGREES
@ .050
@ .200
240
242
244
246
248
250
252
254
256
258
260
262
264
266
159
161
163
165
166
168
170
172
173
175
177
179
180
182
LOBE LIFT
.381
.381
.381
.381
.381
.381
.381
.381
.381
.381
.381
.381
.381
.381
TAPPET LIFT @ TDC
106°
110°
.093
.097
.101
.104
.108
.112
.115
.119
.123
.127
.131
.135
.138
.142
.080
.083
.086
.090
.093
.097
.101
.104
.108
.112
.115
.119
.123
.127
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.85
1.9
.686
.686
.686
.686
.686
.686
.686
.686
.686
.686
.686
.686
.686
.686
.705
.705
.705
.705
.705
.705
.705
.705
.705
.705
.705
.705
.705
.705
.724
.724
.724
.724
.724
.724
.724
.724
.724
.724
.724
.724
.724
.724
SP ROLLERS
The SP Rollers are a high ratio roller series for restricted applications limited to below 8200 RPM. These lobes are more aggressive than the RP series and can
be used successfully with lower rocker ratios. For use with 1.7 to 1.9:1 rocker ratios. Also used in some hydraulic roller applications.
CAMSHAFT TYPE
SP
Rated Duration @
.020" Tappet Lift
Journal = S,B,F,R…
MI 28.2 (13.8/14.4)
LOBE #
RATED
DURATION
1514
1515
4793
4784
4785
4788
4789
4830
4831
264
268
273
275
277
279
281
283
285
DURATION IN DEGREES
@ .050
@ .200
236
240
245
247
249
251
253
255
257
158
161
166
168
170
172
174
176
178
LOBE LIFT
.374
.374
.378
.380
.382
.384
.386
.388
.390
TAPPET LIFT @ TDC
106°
110°
.089
.096
.108
.112
.116
.120
.124
.128
.133
.074
.081
.092
.096
.100
.104
.108
.112
.116
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
.636
.636
.643
.646
.649
.653
.656
.660
.663
.673
.673
.680
.684
.688
.691
.695
.698
.702
.711
.711
.718
.722
.726
.730
.733
.737
.741
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The High Torque .406", when coupled with higher rocker ratios (1.7 and up), result in very aggressive valve motion. These provide excellent torque curves and
great responsiveness. The smaller lobes are great for restricted applications and the larger lobes provide stronger alternatives to the High Torque .440" profiles
when coupled with higher rocker ratios to achieve equivalent valve lift..
CAMSHAFT TYPE
High Torque .406"
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 32.8 (16.4/16.4)
LOBE #
RATED
DURATION
4600
4601
1477
4209
4206
4207
4208
4205
1481
280-6
284-6
288-6
292-6
296-4
300-7
304-7
308-7
312-14
DURATION IN DEGREES
@ .050
@ .200
248
252
256
260
264
268
272
276
280
169
172
176
180
184
188
192
195
199
LOBE LIFT
.406
.406
.406
.406
.406
.406
.406
.406
.406
TAPPET LIFT @ TDC
106°
110°
.106
.114
.122
.131
.139
.148
.156
.164
.173
.091
.098
.106
.114
.122
.131
.136
.147
.156
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.609
.609
.609
.609
.609
.609
.609
.609
.609
.650
.650
.650
.650
.650
.650
.650
.650
.650
.690
.690
.690
.690
.690
.690
.690
.690
.690
HIGH TORQUE .440" ROLLERS
The High Torque .406", when coupled with higher rocker ratios (1.7 and up), result in very aggressive valve motion. These provide excellent torque curves and
great responsiveness. The smaller lobes are great for restricted applications and the larger lobes provide stronger alternatives to the High Torque .440" profiles
when coupled with higher rocker ratios to achieve equivalent valve lift..
CAMSHAFT TYPE
High Torque .440"
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 32.6 (16.3/16.3)
LOBE #
RATED
DURATION
4217
4216
4240
4241
4243
4245
4252
4253
4213
4214
4254
278-8
280-8
284-8
288-8
292-8
296-8
300-8
304-8
308-8
312-8
316-8
DURATION IN DEGREES
@ .050
@ .200
250
252
256
260
264
268
272
276
280
284
288
174
176
178
182
186
190
194
197
201
205
210
LOBE LIFT
.440
.440
.440
.440
.440
.440
.440
.440
.440
.440
.440
TAPPET LIFT @ TDC
106°
110°
.115
.119
.122
.131
.140
.149
.157
.177
.185
.191
.198
.099
.102
.105
.114
.123
.131
.139
.160
.167
.174
.180
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.660
.660
.660
.660
.660
.660
.660
.660
.660
.660
.660
.704
.704
.704
.704
.704
.704
.704
.704
.704
.704
.704
.748
.748
.748
.748
.748
.748
.748
.748
.748
.748
.748
SOLID ROLLER
HIGH TORQUE .406" ROLLERS
SOLID ROLLER
SOLID ROLLER
HXL ROLLERS
The HXL Rollers are intended for high lift applications that require maximum torque and extended RPM. These fall somewhere in between the RX and TK Series
in terms of aggressiveness but provide more lobe lift. They are closest to the High Torque .440" lobes but have incorporated our latest profile advancements
that should allow higher engine speeds and improved dynamics.
CAMSHAFT TYPE
HXL
Rated Duration @
.020" Tappet Lift
Journal = S,B,F,R…
MI 29.7 (14.6/15.1)
LOBE #
RATED
DURATION
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2208
2209
2210
281
283
285
287
289
291
293
295
297
299
301
303
305
307
309
311
313
315
317
DURATION IN DEGREES
@ .050
@ .200
252
254
256
258
260
262
264
266
268
270
272
274
276
278
280
282
284
286
288
175
177
179
181
183
185
187
189
191
193
195
197
199
201
202
204
206
208
210
LOBE LIFT
.434
.436
.438
.440
.442
.444
.446
.448
.450
.452
.454
.454
.454
.454
.454
.454
.454
.454
.454
TAPPET LIFT @ TDC
106°
110°
.118
.122
.126
.130
.135
.139
.144
.148
.152
.157
.161
.166
.170
.174
.178
.183
.187
.191
.195
.102
.106
.110
.114
.118
.122
.126
.130
.135
.139
.143
.148
.152
.156
.161
.165
.169
.173
.177
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.694
.698
.701
.704
.707
.710
.714
.717
.720
.723
.726
.726
.726
.726
.726
.726
.726
.726
.726
.738
.741
.745
.748
.751
.755
.758
.762
.765
.768
.772
.772
.772
.772
.772
.772
.772
.772
.772
.781
.785
.788
.792
.796
.799
.803
.806
.810
.814
.817
.817
.817
.817
.817
.817
.817
.817
.817
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The QRI series are higher lift lobe profiles based off a modern optimized combination of the TK, TC, HXL and new QNI designs. Designed for STD CS journals
and/or 0.900" BCD and up to 1.7:1 ratios.
CAMSHAFT TYPE
QRI
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 28.3 (13.9/14.4)
LOBE #
RATED
DURATION
11534
11535
11536
11537
11508
11509
11510
11511
11512
11513
11514
11515
11516
11517
11518
11519
11520
262
264
266
268
270
272
274
276
278
280
282
284
286
288
290
292
294
DURATION IN DEGREES
@ .050
@ .200
234
236
238
240
242
244
246
248
250
252
254
256
258
260
262
264
266
160
162
164
166
168
170
172
174
176
178
180
182
184
186
188
190
192
LOBE LIFT
.441
.443
.445
.447
.449
.451
.453
.455
.457
.459
.461
.463
.465
.467
.469
.471
.473
TAPPET LIFT @ TDC
106°
110°
.086
.089
.093
.097
.101
.105
.109
.114
.118
.122
.127
.131
.136
.140
.145
.149
.154
.071
.075
.078
.082
.086
.089
.093
.097
.101
.105
.109
.114
.118
.122
.127
.131
.136
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.662
.665
.668
.671
.674
.677
.680
.683
.686
.689
.692
.695
.698
.701
.704
.707
.710
.706
.709
.712
.715
.718
.722
.725
.728
.731
.734
.738
.741
.744
.747
.750
.754
.757
.750
.753
.757
.760
.763
.767
.770
.774
.777
.780
.784
.787
.791
.794
.797
.801
.804
HXX ROLLERS
The HXX Rollers are exhaust optimized versions of our popular HXL Intake lobes..
CAMSHAFT TYPE
HXX
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 29.7 (14.6/15.1)
LOBE #
RATED
DURATION
12404
12406
12198
12199
12200
12201
12202
12203
12204
12205
12206
12207
12208
286
290
294
296
298
300
302
304
306
308
310
312
314
DURATION IN DEGREES
@ .050
@ .200
256
260
264
266
268
270
272
274
276
278
280
282
284
179
183
187
189
191
193
194
196
198
200
202
204
206
LOBE LIFT
.445
.445
.445
.445
.445
.445
.445
.445
.445
.445
.445
.445
.445
TAPPET LIFT @ TDC
106°
110°
.126
.135
.143
.147
.152
.156
.161
.165
.169
.174
.178
.183
.187
.110
.118
.126
.130
.134
.139
.143
.147
.152
.156
.161
.165
.169
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.668
.668
.668
.668
.668
.668
.668
.668
.668
.668
.668
.668
.668
.712
.712
.712
.712
.712
.712
.712
.712
.712
.712
.712
.712
.712
.757
.757
.757
.757
.757
.757
.757
.757
.757
.757
.757
.757
.757
SOLID ROLLER
QRI ROLLERS
SOLID ROLLER
SOLID ROLLER
HXX HL ROLLERS
Higher lift versions on the HXX lobes..
CAMSHAFT TYPE
LOBE #
RATED
DURATION
HXX HL
Rated Duration @
.020" Tappet Lift
12410
299
DURATION IN DEGREES
@ .050
@ .200
269
193
LOBE LIFT
.469
TAPPET LIFT @ TDC
106°
110°
.155
.137
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.704
.750
.797
HXX LL ROLLERS
These are softer ramp designs like the HXL designs but with lower lift. Work well for AL block applications with higher ratios or anywhere as an exhaust lobe.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
HXX LL
Rated Duration @
.020" Tappet Lift
12050
12052
12054
292
296
300
DURATION IN DEGREES
@ .050
@ .200
262
266
270
180
184
188
LOBE LIFT
.390
.392
.394
TAPPET LIFT @ TDC
106°
110°
.135
.143
.151
.119
.127
.134
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.585
.588
.591
.663
.666
.670
.702
.706
.709
IXL ROLLERS
The IXL Series is very similar to the HXL but is optimized for higher rocker ratios. This family also incorporates a design characteristic which should improve
stability at very high RPM. These are quicker off the seat than the RX profiles, but the IXL nose shape will provide better stability with high ratios.
CAMSHAFT TYPE
IXL
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 30.0 (14.5/15.5)
IXLL
Rated Duration @
.020" Tappet Lift
LOBE #
RATED
DURATION
12129
12131
12133
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
275
279
283
287
289
291
293
295
297
299
301
303
305
14502
14504
14506
14508
282
286
291
295
DURATION IN DEGREES
@ .050
@ .200
245
249
253
257
259
261
263
265
267
269
271
273
275
163
167
171
175
177
179
181
182
184
186
188
190
192
@ .050
@ .200
252
256
260
264
167
171
175
179
LOBE LIFT
.400
.404
.408
.412
.414
.416
.418
.420
.422
.424
.426
.428
.430
.387
.389
.391
.393
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
106°
110°
.102
.110
.117
.125
.129
.133
.136
.140
.144
.148
.152
.156
.160
.088
.095
.102
.110
.113
.117
.121
.125
.128
.132
.136
.140
.144
.680
.687
.694
.700
.704
.707
.711
.714
.717
.721
.724
.728
.731
.720
.727
.734
.742
.745
.749
.752
.756
.760
.763
.767
.770
.774
.760
.768
.775
.783
.787
.790
.794
.798
.802
.806
.809
.813
.817
106°
110°
1.8
1.9
2.0
.114
.122
.129
.137
.100
.107
.114
.122
.697
.700
.704
.707
.735
.739
.743
.747
.774
.778
.782
.786
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The TK Series is our most aggressive standard rocker ratio series. These designs get from .020" to .050" tappet lift and back from .050" to .020" tappet lift in
only 28°. That quickness provides more duration at .200" and more area than comparable profiles. Excellent for all out Sprint Car and Late Model applications.
Please consult with a COMP Cam® CAM HELP® technician or one of our Engine Builder salesmen for proper component selection.
CAMSHAFT TYPE
TK
Rated Duration @
.020" Tappet Lift
Journal = S,B,F,R…
MI 28.2 (13.8/14.4)
LOBE #
RATED
DURATION
4639
4640
4641
4642
4643
4609
4610
4611
4612
4613
4614
4572
4615
4573
4616
4574
4617
4575
4618
4576
4619
4620
4621
4622
4623
4624
4625
4627
4628
TK258
TK262
TK266
TK270
TK274
TK277
TK279
TK281
TK283
TK285
TK287
TK289-420
TK289
TK291-420
TK291
TK293-420
TK293
TK295-420
TK295
TK297-420
TK297
TK299
TK301
TK303
TK305
TK307
TK309
TK311
TK313
DURATION IN DEGREES
@ .050
@ .200
230
234
238
242
246
249
251
253
255
257
259
261
261
263
263
265
265
267
267
269
269
271
273
275
277
279
281
283
285
156
160
164
168
172
175
177
179
180
182
184
184
186
186
188
188
190
190
191
191
193
195
197
199
201
202
204
206
208
LOBE LIFT
.405
.410
.415
.420
.425
.430
.430
.430
.430
.430
.430
.420
.430
.420
.430
.420
.430
.420
.430
.420
.430
.430
.430
.430
.430
.430
.430
.430
.430
TAPPET LIFT @ TDC
106°
110°
.078
.085
.093
.101
.109
.118
.122
.127
.131
.135
.140
.147
.144
.149
.149
.151
.153
.155
.157
.159
.162
.166
.170
.174
.178
.183
.187
.191
.195
.064
.071
.078
.085
.093
.101
.105
.109
.114
.118
.122
.129
.126
.131
.131
.134
.135
.138
.140
.142
.144
.148
.154
.157
.161
.165
.169
.173
.178
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.608
.615
.623
.630
.638
.645
.645
.645
.645
.645
.645
.630
.645
.630
.645
.630
.645
.630
.645
.630
.645
.645
.645
.645
.645
.645
.645
.645
.645
.648
.656
.664
.672
.680
.688
.688
.688
.688
.688
.688
.672
.688
.672
.688
.672
.688
.672
.688
.672
.688
.688
.688
.688
.688
.688
.688
.688
.688
.689
.697
.706
.714
.723
.731
.731
.731
.731
.731
.731
.714
.731
.714
.731
.714
.731
.714
.731
.714
.731
.731
.731
.731
.731
.731
.731
.731
.731
SOLID ROLLER
TK ROLLERS
SOLID ROLLER
SOLID ROLLER
TK LIFT RULE ROLLERS
These low lift designs are based on the TK series rollers and are specifically designed for lift rule applications such as Rev-Oil Pro Cup. Typically they will be
used with 1.8:1 ratios.
CAMSHAFT TYPE
TK Lift Rule .347"
Rated Duration @
.020" Tappet Lift
Journal = S,B,F,R…
MI 28.2 (13.8/14.4)
LOBE #
RATED
DURATION
1416
1417
1418
1419
4421
4422
4423
4424
1427
1429
263
267
271
275
279
283
287
291
295
299
DURATION IN DEGREES
@ .050
@ .200
235
239
243
247
251
255
259
263
267
271
154
158
161
165
168
171
174
177
180
184
LOBE LIFT
.347
.347
.347
.347
.347
.347
.347
.347
.347
.347
TAPPET LIFT @ TDC
106°
110°
.089
.096
.104
.111
.119
.126
.134
.141
.147
.154
.074
.081
.089
.096
.104
.111
.118
.126
.133
.140
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.75
1.8
1.85
.607
.607
.607
.607
.607
.607
.607
.607
.607
.607
.625
.625
.625
.625
.625
.625
.625
.625
.625
.625
.642
.642
.642
.642
.642
.642
.642
.642
.642
.642
SPL ROLLERS
The SPL Rollers are very similar to the TK family but have special ramps designed to be used with looser lash values. These lobes are designed for hot lash settings in the .022" to .028" range. Otherwise, they should perform as well as the TK family in high torque applications that respond well to aggressive lobe profiles.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
SPL
Rated Duration @
.020" Tappet Lift
Journal = S,B,F,R…
MI 30.6 (15.2/15.4)
2906
2907
2908
2909
291
295
299
303
DURATION IN DEGREES
@ .050
@ .200
260
264
268
272
184
188
192
195
LOBE LIFT
0.435
0.435
0.435
0.435
TAPPET LIFT @ TDC
106°
110°
.137
.146
.154
.163
.120
.128
.137
.145
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.696
.696
.696
.696
.740
.740
.740
.740
.783
.783
.783
.783
VK LIFT RULE ROLLERS
These low lift designs are similar to the low lift TKs but optimized with quicker ramps for the lower lobe lift. Designed for lift rule solid roller applications including
revised NMRA specs.
CAMSHAFT TYPE
VK Lift Rule .323"
Rated Duration @
.020" Tappet Lift
Journal = S,B,F,R…
MI 27.2 (13.3/13.9)
LOBE #
RATED
DURATION
2688
2689
2690
2691
2692
2693
2694
276
280
284
288
292
296
300
DURATION IN DEGREES
@ .050
@ .200
249
253
257
261
265
269
273
161
164
167
171
174
178
181
LOBE LIFT
.323
.323
.323
.323
.323
.323
.323
TAPPET LIFT @ TDC
106°
110°
.112
.119
.126
.133
.140
.147
.153
.098
.105
.112
.119
.126
.133
.139
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.55
1.6
1.65
.501
.501
.501
.501
.501
.501
.501
.517
.517
.517
.517
.517
.517
.517
.533
.533
.533
.533
.533
.533
.533
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The CSZ Rollers are "tweaked" versions of the DSZ profiles for use in standard journal Small Block Chevy applications and higher lift Big Block Chevy or 50mm.
These are not quite as quick as the DSZ profiles, and they give up a little area and stability compared to the larger journal versions. However, this as close to a
DSZ as you can get with a smaller journal. Also good for hydraulic rollers if noise is not a primary concern.
CAMSHAFT TYPE
CSZ
Rated Duration @
.020" Tappet Lift
Journal = S
MI 27.7 (13.5/14.2)
CSZ H
Rated Duration @
.020" Tappet Lift
Journal = S, B
MI 27.7 (13.5/14.2)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
12540
12581
12582
12588
12543
12583
12584
12589
12543
12550
12552
12554
12555
12556
12558
12560
240
242
244
252
252
254
256
260
252
268
272
276
278
280
284
288
212
214
216
224
224
226
228
232
224
240
244
248
250
252
256
260
133
135
137
144
147
148
150
154
147
165
169
173
175
177
181
185
.325
.325
.325
.325
.348
.348
.348
.348
.348
.394
.398
.402
.404
.406
.410
.414
.049
.052
.055
.068
.068
.071
.075
.082
.068
.098
.106
.114
.118
.123
.132
.140
.039
.041
.044
.055
.055
.058
.061
.068
.055
.082
.090
.098
.102
.106
.114
.123
.488
.488
.488
.488
.522
.522
.522
.522
.522
.591
.597
.603
.606
.609
.615
.621
.520
.520
.520
.520
.557
.557
.557
.557
.557
.630
.637
.643
.646
.650
.656
.662
.553
.553
.553
.553
.592
.592
.592
.592
.592
.670
.677
.683
.687
.690
.697
.704
12564
12566
12568
12570
12571
12572
12573
12574
12575
12576
12577
12578
12580
256
260
264
268
270
272
274
276
278
280
282
284
288
228
232
236
240
242
244
246
248
250
252
254
256
260
154
158
162
166
168
170
172
174
176
178
180
182
186
.399
.403
.407
.411
.413
.415
.417
.419
.421
.423
.425
.427
0.431
.075
.082
.090
.098
.102
.106
.110
.114
.119
.123
.127
.132
.141
.061
.068
.075
.082
.086
.090
.094
.098
.102
.106
.110
.114
.123
.599
.605
.611
.617
.620
.623
.626
.629
.632
.635
.638
.641
.647
.638
.645
.651
.658
.661
.664
.667
.670
.674
.677
.680
.683
.690
.678
.685
.692
.699
.702
.706
.709
.712
.716
.719
.723
.726
.733
LOBE LIFT
SOLID ROLLER
CSZ ROLLERS
SOLID ROLLER
SOLID ROLLER
SOLID ROLLER (C = LARGE JOURNAL MULTI-USE)
DSZ ROLLERS
The DSZ Rollers are tight lash designs based on our high lift DSP and DSS series but optimized with quicker ramps for shorter duration applications. These lobes
have shorter seat timing than even the TK series. DSZ Rollers provide great torque and power in limited engine speed or limited ratio applications. DSZ profiles
are also very good with limited travel hydraulic roller lifters if noise is not a primary concern.
CAMSHAFT TYPE
DSZ Series
Rated Duration @
.020" Tappet Lift
Journal = B, F, R, M
MI 27.1 (13.0/14.1)
DSZ H Series
Rated Duration @
.020" Tappet Lift
Journal = F, R, M
MI 27.1 (13.0/14.1)
LOBE #
RATED
DURATION
12500
12502
12504
12506
12508
12510
12522
12524
12526
12527
12528
12530
DURATION IN DEGREES
@ .050
@ .200
267
271
275
279
283
287
240
244
248
252
256
260
166
170
174
177
181
185
271
275
279
281
283
287
244
248
252
254
256
260
170
174
178
180
182
186
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
106°
110°
.394
.398
.402
.406
.410
.414
.098
.106
.115
.123
.132
.141
.083
.090
.098
.106
.115
.123
.591
.597
.603
.609
.615
.621
.630
.637
.643
.650
.656
.662
.670
.677
.683
.690
.697
.704
.415
.419
.423
.425
.427
.431
.106
.115
.124
.128
.132
.141
.090
.098
.106
.111
.115
.124
.623
.629
.635
.638
.641
.647
.664
.670
.677
.680
.683
.690
.706
.712
.719
.723
.726
.733
TK .455" ROLLERS
These higher lift designs are based on the original TK series rollers, but with higher lobe lift for applications with larger journals only.
CAMSHAFT TYPE
TK - .455"
Rated Duration @
.020" Tappet Lift
Journal = B,F,R,M
MI 28.2 (13.8/14.4)
LOBE #
RATED
DURATION
1528
1530
1532
1534
1536
1538
1540
1542
273
277
281
285
289
293
297
301
DURATION IN DEGREES
@ .050
@ .200
245
249
253
257
261
265
269
273
172
176
179
183
187
190
194
198
LOBE LIFT
.455
.455
.455
.455
.455
.455
.455
.455
TAPPET LIFT @ TDC
106°
110°
.109
.118
.127
.135
.144
.153
.162
.170
.093
.101
.109
.118
.126
.135
.144
.154
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.683
.683
.683
.683
.683
.683
.683
.683
.728
.728
.728
.728
.728
.728
.728
.728
.774
.774
.774
.774
.774
.774
.774
.774
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
These higher lift designs are based on the TK .455" series rollers, but have faster opening side velocities and more lobe lift. For use with 1.948" or larger
journals only.
CAMSHAFT TYPE
SP-TK
Rated Duration @
.020" Tappet Lift
Journal = B,F,R,M
MI 28.2 (13.8/14.4)
LOBE #
RATED
DURATION
1519
1520
1521
1522
1523
1524
276
280
284
288
292
296
DURATION IN DEGREES
@ .050
@ .200
248
252
256
260
264
268
175
179
183
187
190
194
LOBE LIFT
.470
.470
.470
.470
.470
.470
TAPPET LIFT @ TDC
106°
110°
.114
.123
.131
.140
.149
.158
.097
.105
.113
.122
.131
.140
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.705
.705
.705
.705
.705
.705
.752
.752
.752
.752
.752
.752
.799
.799
.799
.799
.799
.799
DIX ROLLERS
The DIX series is similar to the RX but with substantially more area under the curve..
CAMSHAFT TYPE
LOBE #
RATED
DURATION
DIX
Rated Duration @
.020" Tappet Lift
MI 29.6 (14.2/15.4)
Journal = B,F,R,M
12100
DURATION IN DEGREES
@ .050
@ .200
304
274
196
12102
306
276
12103
308
278
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
106°
110°
.439
.165
.147
.702
.746
.790
198
.439
.169
.151
.702
.746
.790
200
.439
.173
.155
.702
.746
.790
SOLID ROLLER
TK HL & SP-TK HI LIFT ROLLERS
SOLID ROLLER
SOLID ROLLER
UB ROLLERS
The UB Series Rollers are based on some of our most popular high RPM, NASCAR-style .875" flat tappet designs but are optimized to take advantage of the
additional tappet velocity allowed with roller lifters. These are quicker off the seat than the HXL Series but have slightly less high lift area. Performance will be
similar to the HXL, but certain port designs and valve train systems will have a clear preference.
CAMSHAFT TYPE
UB
Rated Duration @
.020" Tappet Lift
Journal = B,F,R,M
MI 29.4 (14.4/15.0)
IXLL
Rated Duration @
.020" Tappet Lift
LOBE #
RATED
DURATION
2214
2215
2246
2247
2238
2239
2240
2241
2242
2243
2244
2245
2380
2381
287
289
291
293
295
297
299
301
303
305
307
309
311
313
2265
2267
2273
2274
2275
2276
2277
2278
2279
2280
2281
285
287
289
291
293
295
297
299
301
303
305
DURATION IN DEGREES
@ .050
@ .200
257
259
261
263
265
267
269
271
273
275
277
279
281
283
179
181
183
185
186
188
190
192
194
196
198
200
202
204
@ .050
@ .200
255
257
259
261
263
265
267
269
271
273
275
176
178
179
181
183
185
187
189
191
193
195
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
106°
110°
.446
.447
.448
.449
.450
.451
.452
.453
.454
.455
.456
.457
.458
.459
.126
.130
.135
.139
.143
.147
.152
.156
.160
.164
.168
.172
.177
.181
.110
.114
.118
.122
.128
.130
.135
.139
.143
.147
.151
.155
.159
.164
106°
110°
1.7
1.8
1.9
.423
.424
.425
.426
.427
.428
.430
.432
.434
.436
.438
.122
.126
.130
.134
.138
.142
.146
.150
.155
.159
.163
.106
.110
.114
.118
.122
.126
.130
.134
.138
.142
.146
.719
.721
.723
.724
.726
.728
.731
.734
.738
.741
.745
.761
.763
.765
.767
.769
.770
.774
.778
.781
.785
.788
.804
.806
.808
.809
.811
.813
.817
.821
.825
.828
.832
.714
.715
.717
.718
.720
.722
.723
.725
.726
.728
.730
.731
.733
.734
.758
.760
.762
.763
.765
.767
.768
.770
.772
.774
.775
.777
.779
.780
.803
.805
.806
.808
.810
.812
.814
.815
.817
.819
.821
.823
.824
.826
UBL ROLLERS
The UBL Rollers are based on the UB Roller designs but are faster off the seat for improved performance in limited engine speed and lower lobe lift applications.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
UBL
Rated Duration @
.020" Tappet Lift
Journal = B,F,R,M
MI 29.4 (14.4/15.0)
2195
2196
2198
2199
283
287
295
299
DURATION IN DEGREES
@ .050
@ .200
254
258
266
270
174
179
185
189
LOBE LIFT
.410
.410
.410
.410
TAPPET LIFT @ TDC
106°
110°
.120
.128
.144
.152
.105
.113
.128
.136
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.656
.656
.656
.656
.697
.697
.697
.697
.738
.738
.738
.738
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The UBA Series is based on the UB design but is faster off the seat for improved performance in limited engine speed applications.
CAMSHAFT TYPE
UBA
Rated Duration @
.020" Tappet Lift
Journal = B,F,R,M
MI 28.6 (13.9/14.7)
LOBE #
RATED
DURATION
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
285
287
289
291
293
295
297
299
301
303
305
307
DURATION IN DEGREES
@ .050
@ .200
256
258
260
262
264
266
268
270
272
274
276
278
179
181
183
185
187
189
191
193
195
197
199
201
LOBE LIFT
.444
.446
.448
.450
.452
.454
.456
.458
.460
.462
.464
.465
TAPPET LIFT @ TDC
106°
110°
.126
.131
.135
.139
.144
.148
.153
.157
.161
.166
.170
.175
.110
.114
.118
.122
.126
.131
.135
.139
.144
.148
.152
.157
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.710
.714
.717
.720
.723
.726
.730
.733
.736
.739
.742
.744
.755
.758
.762
.765
.768
.772
.775
.779
.782
.785
.789
.791
.799
.803
.806
.810
.814
.817
.821
.824
.828
.832
.835
.837
UBLL ROLLERS
The UBLL Rollers are based on the UB Roller designs but are faster off the seat for improved performance in limited engine speed and lower lobe lift applications.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
UBLL
Rated Duration @
.020" Tappet Lift
Journal = B,F,R,M
MI 28.6 (13.9/14.7)
2201
DURATION IN DEGREES
@ .050
@ .200
289
260
177
2202
291
262
2203
293
264
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.9
2.0
2.1
106°
110°
.389
.131
.116
.739
.778
.817
179
.390
.135
.119
.741
.780
.819
181
.391
.139
.123
.743
.782
.821
GCI & GCX ROLLERS
The GCI and GCX lobes have a bit more ramp than some of the other modern profiles but have excellent area.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
GCI
Rated Duration @
.020" Tappet Lift
Journal = B,F,R,M
MI 28.7 (13.8/14.9)
2682
2683
2570
2582
2583
290
292
294
296
298
261
263
265
267
269
185
187
189
191
193
.453
.455
.457
.459
.461
.139
.143
.147
.152
.156
.122
.126
.130
.134
.139
.680
.683
.686
.689
.692
.725
.728
.731
.734
.738
.770
.774
.777
.780
.784
GCX
Rated Duration @
.020" Tappet Lift
Journal = B,F,R,M
MI 27.5 (13.2/14.3)
2730
2731
2571
2590
2591
295
297
299
301
303
268
270
272
274
276
191
193
195
197
199
.457
.459
.461
.463
.465
.155
.159
.163
.167
.172
.137
.142
.145
.150
.154
.686
.689
.692
.695
.698
.731
.734
.738
.741
.744
.777
.780
.784
.787
.791
LOBE LIFT
SOLID ROLLER
UBA ROLLERS
SOLID ROLLER
SOLID ROLLER
ULG UVX HIGH RATIO ROLLERS
The ULG and UVX are smoother than the UBLL for even higher rocker ratios, especially for converting older NASCAR Cup engines with very high ratios over to
roller cams.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
ULG
Rated Duration @
.020" Tappet Lift
MI 30.4 (14.8/15.6)
14004
UVX
Rated Duration @
.020" Tappet Lift
DURATION IN DEGREES
@ .050
@ .200
282
252
167
14006
286
256
14008
290
14013
304
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
2.1
2.2
2.3
106°
110°
.388
.114
.100
.815
.854
.892
171
.388
.122
.107
.815
.854
.892
260
175
.388
.129
.114
.815
.854
.892
272
183
.388
.145
.131
.815
.854
.892
LDP XDP ENDURANCE ROLLERS
The LPD and XPD are faster 24 hour endurance roller cam applications or where quicker profiles can be used in well optimized applications.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
LDP
Rated Duration @
.020" Tappet Lift
MI 28.7 (13.6/15.1)
20400
20401
20402
20404
268
270
272
276
239
241
243
247
163
164
166
170
.397
.397
.397
.397
.094
.098
.102
.110
.079
.083
.087
.094
.715
.715
.715
.715
.754
.754
.754
.754
.794
.794
.794
.794
XDP
Rated Duration @
.006" Tappet Lift
MI 29.9 (14.2/15.7)
20410
20412
20413
20414
269
273
275
277
239
243
245
247
159
162
164
166
.369
.369
.369
.369
.093
.101
.105
.109
.079
.086
.090
.093
.664
.664
.664
.664
.701
.701
.701
.701
.738
.738
.738
.738
LOBE LIFT
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The HPX Rollers are higher lift, more aggressive versions of the HXX lobes for use in larger journal applications. These also work well with less rocker ratio and
can be used on the intake or exhaust.
CAMSHAFT TYPE
HPX
Rated Duration @
.020" Tappet Lift
Journal = B,R,M
MI 28.5 (14.0/14.5)
LOBE #
RATED
DURATION
12183
12185
12187
12188
12189
12190
12191
12192
12193
12194
12195
12196
12197
12230
12231
12232
12233
12234
288
292
294
296
298
300
302
304
306
308
310
312
314
316
318
320
322
324
DURATION IN DEGREES
@ .050
@ .200
260
264
266
268
270
272
274
276
278
280
282
284
286
288
290
292
294
296
187
191
193
195
197
199
201
203
205
207
209
211
213
215
217
219
221
223
LOBE LIFT
.471
.475
.477
.479
.481
.483
.485
.487
.489
.491
.493
.495
.495
.495
.495
.495
.495
.495
TAPPET LIFT @ TDC
106°
110°
.140
.150
.154
.159
.164
.169
.174
.179
.183
.189
.193
.199
.203
.208
.213
.218
.222
.227
.122
.131
.135
.140
.144
.150
.154
.159
.164
.169
.174
.179
.183
.188
.193
.198
.203
.207
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.707
.713
.716
.719
.722
.725
.728
.731
.734
.737
.740
.743
.743
.743
.743
.743
.743
.743
.754
.760
.763
.766
.770
.773
.776
.779
.782
.786
.789
.792
.792
.792
.792
.792
.792
.792
.801
.808
.811
.814
.818
.821
.825
.828
.831
.835
.838
.842
.842
.842
.842
.842
.842
.842
DLB ROLLERS
The DLB rollers are very smooth, higher RPM profiles similar to both the TS and DRZ Drag profiles. These are a very good choice for any extremely high RPM
drag racing or mid-endurance application that require high lift, high RPM and a wide power range. Require high rate valve springs.
CAMSHAFT TYPE
DLB
Rated Duration @
.020" Tappet Lift
Journal = R,M
MI 30.6 (15.0/15.6)
DLB LL
Rated Duration @
.020" Tappet Lift
Journal = B,R,M
MI 30.6 (15.0/15.6)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
12476
12478
12480
12482
12483
12484
12485
12486
297
301
305
309
311
313
315
317
266
270
274
278
280
282
284
286
188
192
196
200
202
204
206
208
.519
.525
.531
.537
.540
.543
.546
.549
.144
.153
.162
.171
.176
.181
.185
.190
.127
.135
.144
.153
.158
.162
.167
.171
.830
.840
.850
.859
.864
.869
.874
.878
.882
.893
.903
.913
.918
.923
.928
.933
.934
.945
.956
.967
.972
.977
.983
.988
14280
14282
14284
14285
14286
14288
297
301
305
307
309
313
266
270
274
276
278
282
186
190
194
196
198
202
.473
.477
.481
.483
.485
.489
.143
.151
.160
.165
.169
.178
.126
.135
.143
.147
.152
.160
.757
.763
.770
.773
.776
.782
.804
.811
.818
.821
.825
.831
.851
.859
.866
.869
.873
.880
LOBE LIFT
SOLID ROLLER
HPX ROLLERS
SOLID ROLLER
SOLID ROLLER
DNW ROLLERS
The DNW rollers are similar to the DLB series but work well in longer endurance applications that use lower rate valve springs. Very good for short duration
applications that operated under 9500 RPM.
CAMSHAFT TYPE
DNW Pro
Rated Duration @
.020" Tappet Lift
Journal = F,R,M
MI 30.8 (15.0/15.8)
LOBE #
RATED
DURATION
11888
11889
11890
11891
11892
11902
11903
11904
11906
11908
292
294
296
298
300
300
302
304
308
312
DURATION IN DEGREES
@ .050
@ .200
261
263
265
267
269
269
271
273
277
281
186
188
190
192
194
194
196
198
202
206
LOBE LIFT
.518
.520
.522
.524
.526
.555
.557
.559
.563
.567
TAPPET LIFT @ TDC
106°
110°
.136
.140
.145
.150
.154
.155
.159
.164
.174
.184
.119
.123
.127
.131
.136
.136
.140
.145
.155
.164
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.777
.780
.783
.786
.789
.833
.836
.839
.845
.851
.881
.884
.887
.891
.894
.944
.947
.950
.957
.964
.984
.988
.992
.996
.999
1.055
1.058
1.062
1.070
1.077
DSP ROLLERS
The DSP Rollers fit nicely between the UBA and DSS families. These profiles work great either in lower ratio, high RPM applications or in lower engine speed
applications where you can use a faster lobe.
CAMSHAFT TYPE
DSP
Rated Duration @
.020" Tappet Lift
Journal = B,R,M
MI 28.5 (13.8/14.7)
LOBE #
RATED
DURATION
12170
12171
12172
12174
12176
12177
12178
12179
12180
12181
12182
279
281
283
287
291
293
295
297
299
301
303
DURATION IN DEGREES
@ .050
@ .200
250
252
254
258
262
264
266
268
270
272
274
175
177
179
183
187
189
191
193
195
197
199
LOBE LIFT
.461
.463
.465
.467
.469
.470
.471
.472
.473
.474
.475
TAPPET LIFT @ TDC
106°
110°
.115
.120
.124
.133
.142
.146
.151
.155
.160
.165
.169
.099
.103
.107
.115
.124
.128
.133
.137
.142
.146
.151
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.738
.741
.744
.747
.750
.752
.754
.755
.757
.758
.760
.784
.787
.791
.794
.797
.799
.801
.802
.804
.806
.808
.830
.833
.837
.841
.844
.846
.848
.850
.851
.853
.855
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The DSS Rollers are based off the best aspects of the HXL and DR Series. These work very well in high torque applications that can take advantage of an aggressive
high lobe lift design. The DSS series is a very good choice for applications where valve motion similar to that of an aggressive high ratio lobe is desired without going
with an extreme rocker ratio. Available for 1.948" and larger journal sizes but cannot be ground on standard journal Small Block Chevy or small base circle cores.
CAMSHAFT TYPE
DSS
Rated Duration @
.020" Tappet Lift
Journal = B,R,M
MI 28.0 (13.6/14.4)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
11503
11504
11505
11506
2531
2545
276
278
280
282
284
286
248
250
252
254
256
258
175
177
179
181
183
185
.466
.468
.470
.472
.474
.475
.113
.117
.121
.126
.130
.135
.096
.100
.104
.109
.113
.117
.699
.702
.705
.708
.711
.713
.746
.749
.752
.755
.758
.760
.792
.796
.799
.802
.806
.808
2551
2555
2557
2559
2560
2521
2522
2523
2524
2525
2526
2527
2528
2529
288
299
292
294
296
298
300
302
304
306
308
310
312
314
260
262
264
266
268
270
272
274
276
278
280
282
284
286
187
189
191
192
194
196
198
200
202
204
206
208
210
212
.476
.477
.478
.479
.480
.481
.482
.483
.484
.485
.486
.487
.488
.489
.139
.143
.148
.153
.157
.162
.166
.171
.176
.180
.185
.189
.194
.199
.121
.125
.130
.134
.139
.143
.148
.152
.157
.161
.166
.170
.175
.180
.714
.716
.717
.719
.720
.722
.723
.725
.726
.728
.729
.731
.732
.734
.762
.763
.765
.766
.768
.770
.771
.773
.774
.776
.778
.779
.781
.782
.809
.811
.813
.814
.816
.818
.819
.821
.823
.825
.826
.828
.830
.831
LOBE LIFT
DSL ROLLERS
The DSL Rollers are based off the DSP and DSS Series but with increased lobe lift. The DSL Series is a very good choice for applications where valve motion
similar to that of an aggressive high ratio lobe is desired without going with a high ratio. Available for 55mm/2.165" and larger journal sizes but cannot be
ground on standard journal Big Block Chevy, Small Block Chevy or small base circle cores.
CAMSHAFT TYPE
DSL
Rated Duration @
.020" Tappet Lift
Journal = R,M
MI 28.4 (13.6/14.7)
LOBE #
RATED
DURATION
12374
12376
12378
12380
12382
12384
12385
12386
14387
14388
14490
14492
14494
14496
286
290
294
298
302
306
308
310
312
314
298
302
306
310
DURATION IN DEGREES
@ .050
@ .200
258
262
266
270
274
278
280
282
284
286
270
274
278
282
185
189
193
197
201
205
207
209
211
213
198
202
206
209
LOBE LIFT
.502
.506
.510
.514
.518
.522
.524
.526
.528
.530
.535
.535
.535
.535
TAPPET LIFT @ TDC
106°
110°
.135
.144
.154
.163
.173
.183
.188
.193
.198
.203
.164
.174
.184
.193
.117
.126
.135
.144
.154
.163
.168
.173
.178
.183
.144
.154
.164
.173
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.753
.759
.765
.771
.777
.783
.786
.789
.792
.795
.803
.803
.803
.803
.803
.810
.816
.822
.829
.835
.838
.842
.845
.848
.856
.856
.856
.856
.853
.860
.867
.874
.881
.887
.891
.894
.898
.901
.910
.910
.910
.910
SOLID ROLLER
DSS ROLLERS
SOLID ROLLER
SOLID ROLLER
DTT ROLLERS
The DTT is like a slower opening version of the DSS with a closing ramp like the DSL. These should be smoother and better in high RPM applications.
CAMSHAFT TYPE
DTT
Rated Duration @
.020" Tappet Lift
Journal = R,M
MI 28.9 (14.0/14.9)
LOBE #
RATED
DURATION
14020
14021
14022
14023
14024
14025
14026
300
302
304
306
308
310
312
DURATION IN DEGREES
@ .050
@ .200
271
273
275
277
279
281
283
195
197
199
201
203
205
207
LOBE LIFT
.480
.482
.484
.486
.488
.490
.492
TAPPET LIFT @ TDC
106°
110°
.164
.168
.173
.177
.182
.186
.191
.146
.150
.155
.159
.164
.168
.173
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.720
.723
.726
.729
.732
.735
.738
.768
.771
.774
.778
.781
.784
.787
.816
.819
.823
.826
.830
.833
.836
DPC & DPD ROLLERS
The DPD lobes are for 2.125", 55mm or larger journals and are slightly quicker than the aggressive DSS Series. The DPC can be used on smaller journals and
give approximately the same valve motion when used with about +0.15 more rocker ratio.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
DPC
Rated Duration @
.020" Tappet Lift
Journal = R,M
MI 28.6 (13.6/15.0)
12648
12649
12650
12652
12654
278
280
282
286
290
11728
11730
11732
11734
12746
12748
12749
12750
12751
12752
12753
12754
11736
11737
11710
260
264
268
272
276
280
282
284
286
288
290
292
294
296
284
DPD
Rated Duration @
.020" Tappet Lift
Journal = R,M
MI 27.8 (13.2/14.6)
DURATION IN DEGREES
@ .050
@ .200
249
251
253
257
261
174
176
177
182
185
@ .050
@ .200
232
236
240
244
248
252
254
256
258
260
262
264
266
268
256
161
165
169
173
177
181
183
185
187
188
190
192
194
196
185
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
106°
110°
.440
.440
.440
.440
.440
.114
.118
.122
.131
.140
.098
.102
.106
.114
.122
106°
110°
1.65
1.75
1.85
.4677
.4697
.4717
.4737
.4757
.4777
.4777
.4777
.4777
.4777
.4777
.4777
.4777
.4777
.484
.082
.090
.098
.106
.115
.124
.128
.133
.137
.142
.147
.152
.156
.161
.133
.068
.075
.082
.090
.098
.106
.110
.115
.119
.124
.128
.133
.137
.142
.115
.772
.775
.778
.782
.785
.788
.788
.788
.788
.788
.788
.788
.788
.788
.799
.818
.822
.825
.829
.832
.836
.836
.836
.836
.836
.836
.836
.836
.836
.847
.865
.869
.873
.876
.880
.884
.884
.884
.884
.884
.884
.884
.884
.884
.895
.748
.748
.748
.748
.748
.792
.792
.792
.792
.792
.836
.836
.836
.836
.836
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The HOI design is like the UBA but faster without the lobe lift of the DSS. The HOX fits in between the HPX and HXX series in terms of lift but is almost as aggressive as the high lift HPX family. These work very well with either lower ratios or with less extreme engine speed.
CAMSHAFT TYPE
HOI
Rated Duration @
.020" Tappet Lift
Journal = R,M
MI 27.3 (13.2/14.1)
HOX
Rated Duration @
.020" Tappet Lift
Journal = R,M
MI 28.5 (14.0/14.5)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
12899
12900
12901
12905
12907
12908
12909
12910
12604
274
276
278
282
286
288
290
292
294
247
249
251
255
259
261
263
265
267
174
176
178
182
186
188
190
192
194
.461
.462
.463
.465
.465
.465
.465
.465
.465
.112
.116
.120
.129
.138
.143
.147
.152
.157
.095
.099
.103
.112
.120
.125
.129
.133
.138
.692
.693
.695
.698
.698
.738
.739
.741
.744
.744
.784
.785
.787
.791
.791
.698
.744
.791
.698
.744
.791
12322
12324
12300
12301
12303
12304
12305
12306
12307
11711
297
301
297
299
301
303
305
307
309
301
269
273
269
271
273
275
277
279
281
273
194
198
195
197
199
201
203
205
206
199
.452
.452
.465
.465
.465
.465
.465
.465
.465
.471
.159
.168
.159
.164
.169
.173
.175
.182
.187
.169
.140
.149
.141
.145
.150
.155
.159
.164
.169
.150
.678
.678
.698
.698
.698
.698
.698
.698
.698
.707
.723
.723
.744
.744
.744
.744
.744
.744
.744
.754
.768
.768
.791
.791
.791
.791
.791
.791
.791
.801
LOBE LIFT
XDP ROLLERS
The XDP Rollers are based off the DPD and HPX series, with short lash ramps for tight lash applications. Can be used for either intake or exhaust side and provide
outstanding area along with short seat timing.
CAMSHAFT TYPE
XDP Series
Rated Duration @
.020" Tappet Lift
MI 26.9 (13.1/13.8)
LOBE #
RATED
DURATION
11607
11609
11611
11113
11115
11116
11117
11119
280
284
288
292
296
298
300
304
DURATION IN DEGREES
@ .050
@ .200
253
257
261
265
269
271
273
277
181
185
189
193
197
199
201
205
LOBE LIFT
.465
.465
.465
.465
.465
.465
.465
.465
TAPPET LIFT @ TDC
106°
110°
.127
.136
.145
.155
.164
.169
.174
.183
.109
.118
.127
.136
.145
.150
.155
.164
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.698
.244
.244
.244
.244
.244
.244
.244
.744
.260
.260
.260
.260
.260
.260
.260
.791
.277
.277
.277
.277
.277
.277
.277
SOLID ROLLER
HOI & HOX ROLLERS
SOLID ROLLER
SOLID ROLLER
UL ROLLERS
The UL Roller lobes are extremely aggressive for 55mm+ journal sizes, .850" roller wheels, and lower rocker ratios. Best for use in either applications like Super
Stock class racing when component life may be 2-4 passes or limited engine speed applications. These are not for the faint of heart.
CAMSHAFT TYPE
UL Rollers
Rated Duration @
.020" Tappet Lift
Journal = RG,M
MI 25.6 (12.6/13.0)
LOBE #
RATED
DURATION
11918
11919
11920
11922
11924
11926
11928
295
297
299
303
307
311
315
DURATION IN DEGREES
@ .050
@ .200
269
271
273
277
281
285
289
205
206
208
212
216
220
224
LOBE LIFT
.545
.545
.545
.545
.545
.545
.545
TAPPET LIFT @ TDC
106°
110°
.178
.184
.190
.201
.213
.224
.235
.156
.161
.167
.178
.190
.201
.212
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.818
.818
.818
.818
.818
.818
.818
.872
.872
.872
.872
.872
.872
.872
.927
.927
.927
.927
.927
.927
.927
KZU ROLLERS
The KZU Roller lobes are extremely aggressive for 55mm+ journal sizes, .900" roller wheels, and lower rocker ratios. These are even one step past the UL series.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
KZU Rollers
Rated Duration @
.020" Tappet Lift
11954
11955
11956
11957
11958
299
301
303
305
307
Journal = RN,RH,M
MI 24.9 (12.3/12.6)
DURATION IN DEGREES
@ .050
@ .200
274
276
278
280
282
211
213
215
217
219
LOBE LIFT
.547
.547
.547
.547
.547
TAPPET LIFT @ TDC
106°
110°
.199
.205
.210
.216
.222
.175
.181
.187
.193
.198
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.821
.821
.821
.821
.821
.875
.875
.875
.875
.875
.930
.930
.930
.930
.930
SOLID ROLLER (D = DRAG BASE INTAKE)
CE DRAG RACE INTAKE ROLLERS
The CE Drag Race Intake profiles are intended for very large port, high flow cylinder head applications. They work well in the high RPM range where Comp
Eliminator and similar high RPM small displacement engines operate.
CAMSHAFT TYPE
CE Drag Race
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 40.0 (20.0/20.0)
LOBE #
RATED
DURATION
1286
1288
1295
1260
1278
1268
1271
1272
310
314
316
318
318
320
320
322
DURATION IN DEGREES
@ .050
@ .200
274
278
280
282
282
284
284
286
189
192
194
194
196
196
198
198
LOBE LIFT
.484
.484
.484
.474
.484
.476
.484
.478
TAPPET LIFT @ TDC
106°
110°
.154
.162
.166
.160
.170
.165
.174
.169
.138
.146
.150
.144
.153
.148
.157
.152
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.774
.774
.774
.758
.774
.762
.774
.765
.823
.823
.823
.806
.823
.809
.823
.813
.871
.871
.871
.853
.871
.857
.871
.860
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The High RPM Intake Roller is used on highly modified, high RPM drag race motors. They are used primarily with ported heads that incorporate lightweight
valves and high spring loads.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
1301
1309
1302
4107
4068
4085
4091
4063
1490
4118
318-6
324-7
324-6
328-6
328-5
328-11
330-10
332-7
332-6
336-4
278
284
284
288
288
288
287
292
292
296
195
198
200
201
203
203
203
204
206
209
.465
.456
.471
.456
.476
.483
.480
.456
.476
.476
.161
.171
.172
.177
.180
.179
.180
.184
.188
.195
.144
.154
.155
.161
.163
.162
.163
.167
.171
.178
.698
.684
.707
.684
.714
.725
.720
.684
.714
.714
.744
.730
.754
.730
.762
.773
.768
.730
.762
.762
.791
.775
.801
.775
.809
.821
.816
.775
.809
.809
High RPM Intake
Rated Duration @
.020" Tappet Lift
1030
324-30
288
207
.510
.188
.171
.765
.816
.867
MI 35.0 (14.3/20.7)
1046
326-30
293
211
.510
.198
.180
.765
.816
.867
CAMSHAFT TYPE
High RPM Intake
Rated Duration @
.020" Tappet Lift
MI 40.0 (20.0/20.0)
LOBE LIFT
DASH 31 ROLLERS
The Dash 31 Rollers are a more aggressive cousin of the original -30 lobes that were popular in Pro Stock in the early 90s. These have been used successfully
in Pro Stock but are preferred for use in applications operating below 9000 RPM. These profiles result in excellent torque and make very good power up to the
limiting speed of the valve train.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
Dash 31 Rollers
Rated Duration @
.020" Tappet Lift
MI 31.0 (15.5/15.5)MI
24.9 (12.3/12.6)
1186
1188
1176
1180
306-31
308-31
310-31
312-31
DURATION IN DEGREES
@ .050
@ .200
275
277
279
281
198
200
202
204
LOBE LIFT
.520
.520
.520
.520
TAPPET LIFT @ TDC
106°
110°
.166
.171
.176
.181
.147
.152
.157
.162
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.832
.832
.832
.832
.884
.884
.884
.884
.936
.936
.936
.936
MOUNTAIN MOTOR ROLLERS
These are assorted intake profiles that have been developed for large cubic inch, blown, and/or nitrous applications that respond favorably to more area and are
not required to run over 9000 RPM. These have been used with high rocker ratios to result in over 1.000" valve lift in lower RPM applications.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
Mountain Motor
Rated Duration @
.020" Tappet Lift
MI 29.6 (14.1/15.5)
1027
DURATION IN DEGREES
@ .050
@ .200
322
292
214
1028
326
296
1240
324
294
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
106°
110°
.517
.206
.187
.879
.931
.982
218
.525
.216
.197
.893
.945
.998
214
.520
.201
.182
.884
.936
.988
SOLID ROLLER
HIGH RPM INTAKE ROLLERS
SOLID ROLLER
SOLID ROLLER
REV DRAG RACE INTAKE ROLLERS
The REV Drag Race Rollers use some of the latest ramp designs to provide excellent torque, power and high speed stability for high RPM competition drag race
applications. When coupled with high rocker ratios, these profiles provide more area than comparable standard ratio designs.
CAMSHAFT TYPE
REV Drag Race
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 32.6 (15.5/17.1)
LOBE #
RATED
DURATION
1770
1771
1839
1840
1841
1842
1843
1844
1845
1846
301
303
305
307
309
311
313
315
317
319
DURATION IN DEGREES
@ .050
@ .200
268
270
272
274
276
278
280
282
284
286
188
190
192
194
196
198
199
201
203
205
LOBE LIFT
.460
.460
.460
.460
.460
.460
.460
.460
.460
.460
TAPPET LIFT @ TDC
106°
110°
.147
.152
.156
.160
.164
.169
.173
.177
.181
.186
.130
.135
.139
.143
.147
.151
.156
.160
.164
.168
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.736
.736
.736
.736
.736
.736
.736
.736
.736
.736
.782
.782
.782
.782
.782
.782
.782
.782
.782
.782
.828
.828
.828
.828
.828
.828
.828
.828
.828
.828
RX DRAG RACE INTAKE ROLLERS
The RX Drag Race Rollers are similar to the REV designs, except they have more lift and use sections of our popular RX ramp. These designs have proven to
provide an outstanding combination of high RPM power and stability while not sacrificing torque. Excellent in applications from high end bracket engines to
Comp Eliminator and Pro Stock.
CAMSHAFT TYPE
RX Drag Race
.470" Lobe Lift
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 32.6 (15.5/17.1)
RX Drag Race
.484" Lobe Lift
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 32.6 (15.5/17.1)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1718
1819
1820
294
296
298
300
302
304
306
308
310
312
314
316
318
320
322
261
263
265
267
269
271
273
275
277
279
281
283
285
287
289
181
183
185
187
189
191
193
195
196
198
200
202
204
206
208
.470
.470
.470
.470
.470
.470
.470
.470
.470
.470
.470
.470
.470
.470
.470
.131
.135
.139
.143
.148
.152
.156
.161
.165
.169
.174
.178
.183
.186
.191
.114
.118
.122
.127
.131
.135
.139
.143
.147
.152
.156
.160
.165
.169
.173
.752
.752
.752
.752
.752
.752
.752
.752
.752
.752
.752
.752
.752
.752
.752
.799
.799
.799
.799
.799
.799
.799
.799
.799
.799
.799
.799
.799
.799
.799
.846
.846
.846
.846
.846
.846
.846
.846
.846
.846
.846
.846
.846
.846
.846
1826
1827
1828
1829
1719
1831
1832
310
312
314
316
318
320
322
277
279
281
283
285
287
289
197
199
201
203
204
206
208
.484
.484
.484
.484
.484
.484
.484
.165
.170
.174
.179
.183
.188
.191
.148
.152
.156
.161
.165
.169
.174
.774
.774
.774
.774
.774
.774
.774
.823
.823
.823
.823
.823
.823
.823
.871
.871
.871
.871
.871
.871
.871
LOBE LIFT
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
These use the same ramps as the RX Drag Race .484" lobes but have more lift for all out applications.
CAMSHAFT TYPE
RX Pro Drag Race
Rated Duration @
.020" Tappet Lift
Journal = S,B,F,R…
MI 32.6 (15.5/17.1)
RX Drag Race
.515" Lobe Lift
Rated Duration @
.020" Tappet Lift
Journal = B,F,R,M…
MI 32.6 (15.5/17.1)
LOBE #
RATED
DURATION
1722
1724
1726
1727
1728
1729
1730
1739
1742
1743
1744
1736
1745
1737
1746
1747
1748
1749
DURATION IN DEGREES
@ .050
@ .200
308
310
312
314
316
318
320
322
275
277
279
281
283
285
287
289
195
197
199
201
203
205
207
209
310
312
314
316
318
320
322
326
330
334
277
279
281
283
285
287
289
293
297
301
197
199
201
203
205
207
209
213
217
220
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
106°
110°
.488
.491
.492
.493
.496
.497
.499
.500
.161
.165
.170
.175
.180
.184
.188
.193
.143
.148
.152
.156
.160
.165
.170
.174
.781
.786
.787
.789
.794
.795
.798
.800
.830
.835
.836
.838
.843
.845
.848
.850
.878
.884
.886
.887
.893
.895
.898
.900
.515
.515
.515
.515
.515
.515
.515
.515
.515
.515
.166
.170
.175
.180
.184
.189
.193
.202
.211
.220
.148
.152
.157
.161
.166
.170
.175
.184
.192
.201
.824
.824
.824
.824
.824
.824
.824
.824
.824
.824
.876
.876
.876
.876
.876
.876
.876
.876
.876
.876
.927
.927
.927
.927
.927
.927
.927
.927
.927
.927
SOLID ROLLER
RX PRO DRAG RACE INTAKE ROLLERS
SOLID ROLLER
SOLID ROLLER
SOLID ROLLER (E = DRAG BASE EXHAUST)
HIGH RPM EXHAUST ROLLERS
These lobes are used on the exhaust side of highly modified, high RPM race engines. The cylinder head efficiency directly determines the design used.
CAMSHAFT TYPE
High RPM Exhaust
Rated Duration @
.020" Tappet Lift
MI 40.0 (20.0/20.0)
LOBE #
RATED
DURATION
4050
4067
4074
1495
4055
1484
1320
1485
4247
1487
1306
1489
4051
4064
1494
4052
4053
1152
4056
4057
319-1
322-3
326-4
328-2
330-1
330-5
332-2
334-3
336-5
338-2
340-3
342-2
342-3
344-3
344-4
344-5
348-1
352-1
356-5
360-5
DURATION IN DEGREES
@ .050
@ .200
280
284
288
291
292
292
292
296
296
300
300
302
302
304
304
304
308
312
316
320
185
190
194
222
196
196
203
200
205
204
208
207
210
214
211
214
217
222
227
230
LOBE LIFT
.400
.420
.420
.427
.420
.420
.440
.420
.440
.420
.440
.420
.460
.470
.440
.460
.460
.477
.480
.480
TAPPET LIFT @ TDC
106°
110°
.152
.160
.166
.181
.168
.173
.182
.179
.188
.185
.193
.192
.198
.207
.201
.207
.212
.222
.231
.238
.137
.145
.151
.165
.152
.158
.166
.165
.172
.171
.177
.177
.182
.190
.185
.190
.195
.205
.214
.221
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.600
.630
.630
.641
.630
.630
.660
.630
.660
.630
.660
.630
.690
.705
.660
.690
.690
.716
.720
.720
.640
.672
.672
.683
.672
.672
.704
.672
.704
.672
.704
.672
.736
.752
.704
.736
.736
.763
.768
.768
.680
.714
.714
.726
.714
.714
.748
.714
.748
.714
.748
.714
.782
.799
.748
.782
.782
.811
.816
.816
JX DRAG RACE EXHAUST ROLLERS
The JX Drag Race Exhaust profiles are good complements to either the CE, REV or RX intake designs. They are intended for very large port, high flow cylinder
head applications and work well in the high RPM range where Comp Eliminator and similar high RPM small displacement engines operate.
CAMSHAFT TYPE
JX Drag Race
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 41.5 (20.7/20.7)
LOBE #
RATED
DURATION
1285
1261
1287
1291
1263
1289
1269
1293
1273
333
335
335
337
339
339
341
341
343
DURATION IN DEGREES
@ .050
@ .200
292
294
294
296
298
298
300
300
302
196
198
198
200
201
202
203
203
205
LOBE LIFT
.460
.446
.460
.460
.446
.460
.448
.460
.450
TAPPET LIFT @ TDC
106°
110°
.167
.171
.171
.175
.179
.179
.183
.183
.187
.152
.156
.156
.160
.163
.163
.167
.167
.171
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.736
.714
.736
.736
.714
.736
.717
.736
.720
.782
.758
.782
.782
.758
.782
.762
.782
.765
.828
.803
.828
.828
.803
.828
.806
.828
.810
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The XCX Rrollers provide state-of-the-art ramp designs with the ramp characteristics required to decrease pumping losses and allow exhaust gasses from overlap to provide signal to accelerate the intake charge into the cylinder in large port, drag race applications. These modern designs are very stable and respond
well to rocker ratio increases.
CAMSHAFT TYPE
XCX Drag Race
Rated Duration @
.020" Tappet Lift
Journal = N,S,B,R…
MI 38.0 (19.0/19.0)
XCX .484 Drag
Rated Duration @
.020" Tappet Lift
Journal = S,B,F,R…
MI 38.0 (19.0/19.0)
XCX Pro Drag Race
Rated Duration @
.020" Tappet Lift
Journal = B,F,R,M…
MI 38.0 (19.0/19.0)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
1850
1960
1860
1962
1861
1862
1964
1864
1966
1866
1968
1868
1970
1870
320
324
326
328
328
330
332
334
336
338
340
342
344
346
282
286
288
290
290
292
294
296
298
300
302
304
306
308
194
198
200
202
202
204
206
208
210
212
214
216
217
220
.460
.450
.470
.450
.470
.470
.450
.470
.450
.470
.450
.470
.450
.470
.162
.170
.175
.179
.179
.183
.187
.192
.195
.200
.203
.209
.211
.217
.146
.154
.158
.162
.162
.166
.170
.175
.178
.183
.186
.191
.194
.200
.736
.720
.752
.720
.752
.752
.720
.752
.720
.752
.720
.752
.720
.752
.782
.765
.799
.765
.799
.799
.765
.799
.765
.799
.765
.799
.765
.799
.828
.810
.846
.810
.846
.846
.810
.846
.810
.846
.810
.846
.810
.846
1751
1752
1753
1758
1759
1760
1761
1763
1772
1785
1773
1777
318
322
326
330
334
338
342
344
346
348
350
356
280
284
288
292
296
300
304
306
308
310
312
318
193
197
201
205
209
212
216
218
220
222
224
230
.484
.484
.484
.484
.484
.484
.484
.484
.484
.484
.484
.484
.159
.167
.175
.184
.192
.201
.210
.214
.218
.222
.226
.239
.142
.150
.158
.167
.175
.184
.192
.196
.200
.205
.209
.222
.774
.774
.774
.774
.774
.774
.774
.774
.774
.774
.774
.774
.823
.823
.823
.823
.823
.823
.823
.823
.823
.823
.823
.823
.871
.871
.871
.871
.871
.871
.871
.871
.871
.871
.871
.871
1871
1872
1873
1874
1875
1876
1877
1878
1879
1869
1893
330
332
334
336
338
340
342
344
346
348
350
292
294
296
298
300
302
304
306
308
310
312
205
207
209
211
213
215
217
219
221
223
225
.500
.502
.504
.506
.508
.510
.512
.514
.516
.520
.522
.184
.188
.193
.197
.202
.206
.211
.215
.220
.224
.229
.167
.171
.175
.180
.184
.188
.193
.197
.202
.206
.210
.800
.803
.806
.810
.813
.816
.819
.822
.826
.832
.835
.850
.853
.857
.860
.864
.867
.870
.874
.877
.884
.887
.900
.904
.907
.911
.914
.918
.922
.925
.929
.936
.940
LOBE LIFT
SOLID ROLLER
XCX DRAG RACE EXHAUST ROLLERS
SOLID ROLLER
SOLID ROLLER
XJX DRAG EXHAUST ROLLERS
The XJX Drag Race lobes are like the XCX but with higher acceleration rates, more lift, and more area under the curve. The asymmetric design with higher
opening acceleration helps move more exhaust gas at bottom dead center, reducing losses as the piston comes up, driving the remaining exhaust from the
cylinder. These profiles are designed for very stiff valve train systems with 60mm journals and larger, 0.850" diameter roller lifter wheels.
CAMSHAFT TYPE
XJX Drag Exh.
Rated Duration @
.020" Tappet Lift
Journal = B,F,R,M…
MI 37.6 (18.1/19.5)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
1880
1884
11000
11001
2054
11002
324
332
334
334
334
334
286
294
296
296
296
296
204
212
213
214
214
214
.502
.522
.502
.517
.526
.532
.179
.199
.201
.203
.203
.204
.161
.180
.183
.184
.184
.185
.803
.835
.803
.827
.842
.851
.853
.887
.853
.879
.894
.904
.904
.940
.904
.931
.947
.958
1680
1886
1681
1108
1682
1110
1111
1239
1683
11103
1112
11003
1227
1684
11104
1245
1685
11105
1686
11106
1687
11107
1688
1699
334
336
336
338
338
339
340
340
340
340
341
341
342
342
342
344
344
344
346
346
348
348
350
352
296
298
298
300
300
301
302
302
302
302
303
303
304
304
304
306
306
306
308
308
310
310
312
314
214
216
216
218
218
218
219
220
220
220
220
221
221
222
222
223
224
224
226
226
228
228
230
232
.538
.532
.540
.521
.542
.522
.523
.535
.544
.561
.524
.543
.525
.546
.563
.525
.548
.565
.550
.567
.552
.569
.554
.556
.204
.209
.209
.212
.214
.215
.217
.218
.219
.219
.219
.214
.222
.224
.224
.226
.229
.229
.234
.234
.240
.240
.245
.249
.184
.189
.189
.193
.194
.195
.198
.198
.199
.199
.200
.194
.202
.204
.204
.207
.209
.209
.214
.214
.220
.220
.225
.230
.861
.851
.864
.834
.867
.835
.837
.856
.870
.898
.838
.869
.840
.874
.901
.840
.877
.904
.880
.907
.883
.910
.886
.890
.915
.904
.918
.886
.921
.887
.889
.910
.925
.954
.891
.923
.893
.928
.957
.893
.932
.961
.935
.964
.938
.967
.942
.945
.968
.958
.972
.938
.976
.940
.941
.963
.979
1.010
.943
.977
.945
.983
1.013
.945
.986
1.017
.990
1.021
.994
1.024
.997
1.001
LOBE LIFT
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The XJS Drag Race lobes are like the XJX but possibly a touch smoother with higher lift.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
XJS Drag Race
Rated Duration @
.020" Tappet Lift
Journal = R,M,K…
MI 37.6 (18.1/19.5)
14049
14050
14051
14052
14053
14054
348
350
352
354
356
358
DURATION IN DEGREES
@ .050
@ .200
310
312
314
316
318
320
228
230
232
234
236
238
LOBE LIFT
.569
.571
.573
.575
.577
.579
TAPPET LIFT @ TDC
106°
110°
.239
.244
.249
.254
.259
.264
.219
.224
.229
.234
.239
.244
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
.967
.971
.974
.978
.981
.984
1.024
1.028
1.031
1.035
1.039
1.042
1.081
1.085
1.089
1.093
1.096
1.100
PRO MOD EXHAUST ROLLERS
The Pro Mod Exhaust Series is very similar to the original High RPM Exhaust Series but with higher lifts and larger durations. These are excellent for either
Mountain Motors or Pro Mod applications where more time and more area are required to scavenge the cylinder.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
Pro Mod Exh.
Rated Duration @
.020" Tappet Lift
Journal = B,F,R,M…
MI 39.6 (19.8/19.8)
1181
1183
1185
1187
1189
352
356
360
364
368
DURATION IN DEGREES
@ .050
@ .200
312
316
320
324
328
226
228
232
235
240
LOBE LIFT
.510
.510
.510
.510
.510
TAPPET LIFT @ TDC
106°
110°
.231
.235
.244
.250
.259
.212
.217
.226
.233
.242
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.816
.816
.816
.816
.816
.867
.867
.867
.867
.867
.918
.918
.918
.918
.918
SOLID ROLLER (F = LARGE JOURNAL INTAKE)
VOI PRO DRAG RACE ROLLERS
The VOI Pro Drag lobes are a newer family, smoother than the DR and TSP lobes. They are used in professional class drag racing or similar applications and are
excellent for use at very high RPM.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
VOI Pro
Rated Duration @
.020" Tappet Lift
MI 30.7 (15.1/15.6)
11166
11170
11171
11172
313
317
319
321
DURATION IN DEGREES
@ .050
@ .200
282
286
288
290
203
207
209
211
LOBE LIFT
.529
.531
.532
.533
TAPPET LIFT @ TDC
106°
110°
.183
.192
.197
.201
.165
.174
.178
.183
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
.952
.956
.958
.959
1.005
1.009
1.011
1.013
1.058
1.062
1.064
1.066
SOLID ROLLER
XJS EXHAUST DRAG RACE ROLLERS
SOLID ROLLER
SOLID ROLLER
DR PRO DRAG INTAKE ROLLERS
The DR Pro Drag lobes are more aggressive than the RX Pro Drag lobes. They are used in professional class drag racing or similar applications and are not
recommended for use above 10,000 RPM. These use our latest design techniques to provide excellent area and improved dynamics over similar profiles.
CAMSHAFT TYPE
DR Pro Drag Int.
Rated Duration @
.020" Tappet Lift
Journal = B,F,R,M…
MI 31.0 (15.3/15.7)
LOBE #
RATED
DURATION
1912
1914
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
301
305
307
309
311
313
315
317
319
321
323
325
327
DURATION IN DEGREES
@ .050
@ .200
270
274
276
278
280
282
284
286
288
290
292
294
296
193
197
199
201
203
205
207
209
211
213
215
217
219
LOBE LIFT
.507
.509
.520
.521
.521
.522
.523
.524
.525
.526
.527
.528
.529
TAPPET LIFT @ TDC
106°
110°
.155
.164
.169
.173
.178
.183
.188
.193
.198
.202
.207
.212
.217
.137
.146
.150
.155
.159
.164
.169
.173
.178
.183
.188
.192
.197
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
.862
.865
.884
.886
.886
.887
.889
.891
.893
.894
.896
.898
.899
.913
.916
.936
.938
.938
.940
.941
.943
.945
.947
.949
.950
.952
.963
.967
.988
.990
.990
.992
.994
.996
.998
.999
1.001
1.003
1.005
RS DRAG INTAKE ROLLERS
The RS Drag Intake Rollers are similar to the DR designs, except with slightly quicker opening, more lift and a new controlled velocity design. These will be
excellent in high rocker/high lift/high RPM applications, such as Comp Eliminator and Pro Stock classes where cylinder heads require .900" to 1.050" valve lift
to perform. For use with 2.125" or larger cam bearings..
CAMSHAFT TYPE
RS Drag Int.
Rated Duration @
.020" Tappet Lift
Journal = R,M,K…
MI 30.5 (14.9/15.6)
LOBE #
RATED
DURATION
1577
1578
1579
1580
1581
1582
1585
306
308
310
312
314
316
318
DURATION IN DEGREES
@ .050
@ .200
276
278
280
282
284
286
288
199
201
203
205
207
209
211
LOBE LIFT
.532
.534
.536
.538
.540
.542
.544
TAPPET LIFT @ TDC
106°
110°
.169
.174
.179
.183
.188
.193
.198
.151
.155
.160
.165
.169
.174
.179
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
.904
.908
.911
.915
.918
.921
.925
.958
.961
.965
.968
.972
.976
.979
1.011
1.015
1.018
1.022
1.026
1.030
1.034
PQ PRO STOCK DRAG ROLLERS
The PQ Pro Drag lobes are slightly smoother, higher lift designs based loosely on the DR Pro Drag lobes. They are use in professional class drag racing or similar
applications.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
PQ Pro Stock Drag
Rated Duration @
.020" Tappet Lift
MI 30.5 (14.9/15.6)
1901
1903
1936
1937
304
306
308
310
DURATION IN DEGREES
@ .050
@ .200
273
275
277
279
196
198
200
202
LOBE LIFT
.562
.564
.566
.568
TAPPET LIFT @ TDC
106°
110°
.161
.166
.170
.175
.143
.147
.152
.156
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
.899
.902
.906
.909
.955
.959
.962
.966
1.012
1.015
1.019
1.022
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The TS Pro Series is an aggressive Pro Stock series with faster ramps than the DR Drag Series. These designs get from .020" to .050" tappet lift and back in
only 30°, resulting in the quickest drag race rollers COMP Cams® has released.
CAMSHAFT TYPE
TS Pro
Rated Duration @
.020" Tappet Lift
Journal = F,R,M,K…
MI 30.3 (14.7/15.6)
LOBE #
RATED
DURATION
1402
1372
1403
1373
1398
1374
1399
1375
1400
1376
1377
307
TS309
309
TS311
311
TS313
313
TS315
315
TS317
TS319
DURATION IN DEGREES
@ .050
@ .200
276
278
278
280
280
282
282
284
284
286
288
200
202
202
204
204
206
206
208
208
210
212
LOBE LIFT
.543
.535
.545
.537
.547
.539
.549
.541
.551
.543
.545
TAPPET LIFT @ TDC
106°
110°
.172
.176
.177
.181
.182
.186
.187
.191
.192
.196
.201
.153
.157
.158
.162
.162
.167
.167
.172
.172
.176
.181
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
.923
.910
.927
.913
.930
.916
.933
.920
.937
.923
.927
.977
.963
.981
.967
.985
.970
.988
.974
.992
.977
.981
1.032
1.017
1.036
1.020
1.039
1.024
1.043
1.028
1.047
1.032
1.036
SOLID ROLLER
TS PRO ROLLERS
TS+ PRO ROLLERS
The TS+ PRO series is based off the TS lobe series, but with even faster ramps and higher acceleration (almost like the early motion that would be achived with
the TS and a 10% higher rocker ratio). Excellent for Pro Stock style drag racing applications.
CAMSHAFT TYPE
TS+ Pro
Rated Duration @
.020" Tappet Lift
Journal = R,M,K…
MI 29.2 (14.1/15.1)
LOBE #
RATED
DURATION
1382
1383
1384
1385
1386
1388
307
309
311
313
315
317
DURATION IN DEGREES
@ .050
@ .200
278
280
282
284
286
288
204
206
208
210
212
215
LOBE LIFT
.540
.542
.544
.546
.548
.624
TAPPET LIFT @ TDC
106°
110°
.182
.187
.192
.197
.202
.211
.162
.167
.172
.177
.182
.189
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
.918
.921
.925
.928
.932
1.061
.972
.976
.979
.983
.986
1.123
1.026
1.030
1.034
1.037
1.041
1.186
TSP PRO ROLLERS
The TSP Rollers are very modern, all purpose drag race lobes based loosely on the High RPM TS Pro Stock Drag lobes but with slightly lower acceleration and lift.
These are an excellent choice for 2.165" and smaller journal camshafts where very high lobe lift lobes can compromise the base circle diameter, core strength
and stability under high loads. These have shorter seat timing than older Fuel/Blown Alc lobes but should be very good in their place if run with tighter lash.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
TSP Pro
Rated Duration @
.020" Tappet Lift
Journal = R,M,K…
MI 30.6 (14.8/15.8)
11124
11126
11128
11130
11132
318
322
326
330
334
DURATION IN DEGREES
@ .050
@ .200
287
291
295
299
303
209
213
217
221
225
LOBE LIFT
.529
.531
.533
.535
.537
TAPPET LIFT @ TDC
106°
110°
.191
.201
.211
.221
.231
.172
.182
.191
.201
.211
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
.899
.903
.906
.910
.913
.952
.956
.959
.963
.967
1.005
1.009
1.013
1.017
1.020
SOLID ROLLER
SOLID ROLLER
DRZ PRO STOCK DRAG ROLLERS
These profiles are high RPM Pro Stock designs for use in modern professional drag race classes.
CAMSHAFT TYPE
DRZ Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = R,M,K,A…
MI 30.6 (14.9/15.7)
LOBE #
RATED
DURATION
1975
1976
1977
1978
1979
1980
306
308
310
312
314
316
DURATION IN DEGREES
@ .050
@ .200
275
277
279
281
283
285
200
201
203
205
206
208
LOBE LIFT
TAPPET LIFT @ TDC
.560
.562
.564
.566
.568
.570
106°
110°
.168
.172
.177
.182
.186
.191
.149
.154
.158
.163
.167
.172
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
1.008
1.012
1.015
1.019
1.022
1.026
1.064
1.068
1.072
1.075
1.079
1.083
1.120
1.124
1.128
1.132
1.136
1.140
DQS PRO STOCK DRAG ROLLERS
These profiles are high RPM Pro Stock designs for use in modern professional drag race classes.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
DQS Pro Stock Drag
Rated Duration @
.020" Tappet Lift
1939
MI 29.7 (14.6/15.1)
DURATION IN DEGREES
@ .050
@ .200
309
279
204
1943
311
281
1945
313
283
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
106°
110°
.566
.180
.160
1.019
1.075
1.132
206
.568
.185
.166
1.022
1.079
1.136
208
.570
.190
.170
1.026
1.083
1.140
DRS DRAG ROLLERS
The DRS Drag Rollers are the "evil cousin" of the DR drags. These are designed for very stiff valve train systems incorporating 60mm or larger cam journals.
The major intensity of these are less than 30°, and these lobes provide more area under the curve than earlier DR designs.
CAMSHAFT TYPE
DRS Drag
Rated Duration @
.020" Tappet Lift
Journal = R,M,K,A…
MI 29.6 (14.4/15.2)
LOBE #
RATED
DURATION
1986
1987
1988
1989
1990
1991
1992
1993
1982
302
304
306
308
310
312
314
316
320
DURATION IN DEGREES
@ .050
@ .200
273
275
277
279
281
283
285
287
291
199
201
203
205
207
209
211
213
217
LOBE LIFT
.560
.563
.566
.569
.572
.575
.578
.581
.585
TAPPET LIFT @ TDC
106°
110°
.168
.173
.178
.183
.188
.193
.198
.203
.213
.148
.153
.158
.163
.167
.172
.177
.182
.192
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
1.008
1.013
1.019
1.024
1.030
1.035
1.040
1.046
1.053
1.064
1.070
1.075
1.081
1.087
1.093
1.098
1.104
1.112
1.120
1.126
1.132
1.138
1.144
1.150
1.156
1.162
1.170
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The DRD Drag Race lobes are basically slightly improved higher lift versions of the DRS series that were developed on a later generation of design software.
60mm or larger cam journals. The major intensity of these are below 30 degrees, and these lobes provide outstanding area and surprising control at high RPM.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
DRD Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = R,M,K,A…
MI 29.3 (14.4/14.9)
11975
11976
11977
11978
11979
302
304
306
308
310
DURATION IN DEGREES
@ .050
@ .200
273
275
277
279
281
200
202
204
206
208
LOBE LIFT
.572
.574
.576
.578
.580
TAPPET LIFT @ TDC
106°
110°
.170
.175
.180
.185
.190
.150
.155
.160
.165
.170
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
1.030
1.033
1.037
1.040
1.044
1.087
1.091
1.094
1.098
1.102
1.144
1.148
1.152
1.156
1.160
DRM PRO STOCK DRAG ROLLERS
These profiles are modern Pro Stock style designs for use in professional drag race classes with increased area and acceleration compared to the DRD. These
are outstanding if applications that do not require higher RPM or spring life compared to the DRD.
CAMSHAFT TYPE
DRM Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 29.0 (14.2/14.8)
LOBE #
RATED
DURATION
2387
2390
2391
2399
2392
2393
303
305
307
308
309
311
DURATION IN DEGREES
@ .050
@ .200
274
276
278
279
280
282
202
204
206
207
208
210
LOBE LIFT
.570
.572
.574
.575
.576
.578
TAPPET LIFT @ TDC
106°
110°
.175
.180
.185
.188
.190
.196
.155
.160
.165
.167
.170
.175
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
1.026
1.030
1.033
1.035
1.037
1.040
1.083
1.087
1.091
1.093
1.094
1.098
1.140
1.144
1.148
1.150
1.152
1.156
SOLID ROLLER
DRD PRO STOCK DRAG ROLLERS
SOLID ROLLER
SOLID ROLLER
DRI PRO STOCK DRAG ROLLERS
The DRI Pro Stock designs fill the gap between current Pro Stock and Mountain Motor designs. For 60mm+ journals and .850" roller wheels.
CAMSHAFT TYPE
DRI Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = RG,M,K,…
MI 28.9 (14.2/14.7)
DRI Pro Stock Drag
Rated Duration @
.020" Tappet Lift
LOBE #
RATED
DURATION
2037
2039
2041
2042
2043
2044
2045
12060
12061
2290
2291
2292
2293
2294
2295
2296
2297
2299
1568
1570
1572
DURATION IN DEGREES
@ .050
@ .200
308
309
310
312
314
316
318
320
322
306
308
310
312
314
316
318
320
322
279
280
281
283
285
287
289
291
293
277
279
281
283
285
287
289
291
293
208
209
210
212
214
216
218
220
222
206
208
210
212
214
216
218
220
222
310
314
318
281
285
289
210
214
218
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
106°
110°
.575
.576
.577
.579
.581
.583
.585
.587
.589
.582
.584
.586
.588
.590
.592
.594
.596
.598
.190
.192
.195
.200
.205
.211
.216
.222
.227
.185
.190
.195
.201
.206
.212
.217
.223
.229
.169
.171
.174
.179
.184
.189
.195
.200
.205
.164
.169
.174
.179
.184
.190
.195
.201
.206
1.035
1.037
1.039
1.042
1.046
1.049
1.053
1.057
1.060
1.048
1.051
1.055
1.058
1.062
1.066
1.069
1.073
1.076
1.7
1.8
1.9
.632
.636
.640
.197
.208
.220
.175
.186
.197
1.074
1.081
1.088
1.138
1.145
1.152
1.201
1.208
1.216
1.093
1.094
1.096
1.100
1.104
1.108
1.112
1.115
1.119
1.106
1.110
1.113
1.117
1.121
1.125
1.129
1.132
1.136
1.150
1.152
1.154
1.158
1.162
1.166
1.170
1.174
1.178
1.164
1.168
1.172
1.176
1.180
1.184
1.188
1.192
1.196
DZI PRO STOCK DRAG ROLLERS
These profiles are higher RPM versions of the DRI designs for use in modern professional drag race classes. These are very much like a higher lift DRS.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
DZI Pro Stock
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 29.8 (14.6/15.2)
2057
2058
2095
2182
2184
305
307
309
311
313
DURATION IN DEGREES
@ .050
@ .200
275
277
279
281
283
201
204
206
208
209
LOBE LIFT
.571
.573
.575
.577
.579
TAPPET LIFT @ TDC
106°
110°
.173
.179
.184
.189
.194
.154
.159
.164
.169
.173
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
1.028
1.031
1.035
1.039
1.042
1.085
1.089
1.093
1.096
1.100
1.142
1.146
1.150
1.154
1.158
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
These profiles are a Pro Stock style design very close to the DRD series but would achieve basically the same motion with a slightly lower rocker ratio. For use
in modern professional drag race classes.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
DRP Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 29.8 (14.6/15.2)
2385
2586
2587
2588
2589
309
311
313
315
317
DURATION IN DEGREES
@ .050
@ .200
281
283
285
287
289
210
212
214
216
218
LOBE LIFT
.593
.595
.597
.599
.601
TAPPET LIFT @ TDC
106°
110°
.195
.201
.206
.212
.217
.174
.180
.185
.190
.196
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
1.008
1.012
1.015
1.018
1.022
1.067
1.071
1.075
1.078
1.082
1.127
1.131
1.134
1.138
1.142
DKL PRO DRAG ROLLERS
CAMSHAFT TYPE
LOBE #
RATED
DURATION
DKL Pro Stock Drag
Rated Duration @
.020" Tappet Lift
MI 28.6 (14.1/14.5)
2430
DURATION IN DEGREES
@ .050
@ .200
301
272
201
2419
303
274
2420
305
276
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
106°
110°
.578
.171
.151
1.040
1.098
1.156
203
.581
.176
.156
1.046
1.104
1.162
205
.584
.182
.161
1.051
1.110
1.168
TDS PRO STOCK DRAG ROLLERS
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
TDS Pro Stock Drag
Rated Duration @
.020" Tappet Lift
MI 29.4 (14.5/14.9)
12066
305
276
202
.569
.176
.156
1.024
1.081
1.138
12067
307
278
204
.571
.181
.161
1.028
1.085
1.142
12068
309
280
206
.573
.186
.166
1.031
1.089
1.146
LOBE LIFT
HDZ PRO STOCK DRAG ROLLERS
The HDZ series is a very high RPM Pro Stock style design with design influences from the HXL series used in high RPM Super Stock type applications but with
increased area and far more lift.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
HDZ Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 28.3 (13.9/14.4)
11230
11231
11232
11236
303
305
307
303
DURATION IN DEGREES
@ .050
@ .200
275
277
279
275
204
206
208
204
LOBE LIFT
.579
.581
.583
.605
TAPPET LIFT @ TDC
106°
110°
.179
.184
.189
.180
.158
.163
.168
.159
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
1.042
1.046
1.049
1.089
1.100
1.104
1.108
1.150
1.158
1.162
1.166
1.210
SOLID ROLLER
DRP PRO STOCK DRAG ROLLERS
SOLID ROLLER
SOLID ROLLER
PRI PLI PRO STOCK DRAG ROLLERS
The PRI and PLI are great baseline Pro Stock intake style drag race roller lobes with excellent area under the curve and require less valve relief than lobes with
similar ramp quickness and area.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.75
1.85
1.95
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
12416
12417
12418
12419
12420
12421
12422
12423
12424
12425
12426
296
298
300
302
304
306
308
310
312
314
316
268
270
272
274
276
278
280
282
284
286
288
193
195
197
199
201
203
205
207
209
211
213
.563
.565
.567
.569
.571
.573
.575
.577
.579
.581
.583
.153
.158
.163
.167
.172
.177
.182
.187
.192
.197
.202
.135
.139
.144
.148
.153
.158
.163
.167
.172
.177
.182
.985
.989
.992
.996
.999
1.003
1.006
1.010
1.013
1.017
1.020
1.75
1.85
1.95
PGI Pro Stock Drag
Rated Duration @
.020" Tappet Lift
12310
12311
12312
302
304
306
274
276
278
201
203
205
.584
.586
.588
.117
.176
.181
.151
.156
.161
.993
.996
1.000
1.051
1.055
1.058
1.110
1.113
1.117
PGI Pro Stock
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 27.8 (13.7/14.1)
12408
12400
12393
12394
12412
288
302
304
306
310
260
274
276
278
282
187
201
203
205
209
.570
.603
.605
.607
.607
.138
.171
.176
.181
.192
.120
.152
.156
.161
.172
.969
1.025
1.029
1.032
1.032
1.026
1.085
1.089
1.093
1.093
1.083
1.146
1.150
1.153
1.153
14240
14241
14242
14243
14244
14245
14246
302
304
306
308
310
312
314
274
276
278
280
282
284
286
202
204
206
208
210
212
214
.581
.583
.585
.587
.589
.591
.593
.175
.180
.186
.191
.196
.202
.207
.155
.160
.165
.170
.175
.180
.186
.988
.991
.995
.998
1.001
1.005
1.008
1.046
1.049
1.053
1.057
1.060
1.064
1.067
1.104
1.108
1.112
1.115
1.119
1.123
1.127
12428
12429
12430
12431
12432
12433
12434
12435
12436
298
300
302
304
306
308
310
312
314
271
273
275
277
279
281
283
285
287
199
201
203
205
207
209
211
213
215
.613
.615
.617
.619
.621
.623
.625
.627
.629
.167
.172
.178
.183
.188
.193
.199
.204
.210
.147
.152
.157
.162
.167
.172
.178
.183
.188
.981
.984
.987
.990
.994
.997
1.000
1.003
1.006
1.042
1.046
1.049
1.052
1.056
1.059
1.063
1.066
1.069
1.103
1.107
1.111
1.114
1.118
1.121
1.125
1.129
1.132
CAMSHAFT TYPE
PRI Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = RE,M,K…
MI 28.4 (14.0/14.4)
POI Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 27.6 (13.6/14.0)
PLI Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 27.2 (13.4/13.8)
LOBE LIFT
1.042
1.045
1.049
1.053
1.056
1.060
1.064
1.067
1.071
1.075
1.079
1.098
1.102
1.106
1.110
1.113
1.117
1.121
1.125
1.129
1.133
1.137
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The PZI series is a tweaked version of the PRI & PLI Series that should perform better in applications running very close to coil bind, but these do require just a
bit more valve clearance.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
PZI
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 27.8 (13.6/14.2)
12716
12721
12722
12723
12724
12725
12726
12727
12728
298
300
302
304
306
308
310
312
314
270
272
274
276
278
280
282
284
286
198
200
202
204
206
208
210
212
214
.572
.574
.576
.578
.580
.582
.584
.586
.588
.165
.170
.175
.180
.185
.190
.196
.201
.206
.145
.150
.155
.160
.165
.170
.175
.180
.185
.972
.976
.979
.983
.986
.989
.993
.996
1.000
1.030
1.033
1.037
1.040
1.044
1.048
1.051
1.055
1.058
1.087
1.091
1.094
1.098
1.102
1.106
1.110
1.113
1.117
PZI Mid Lift
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 27.8 (13.6/14.2)
12842
12843
12844
12850
12851
12852
302
304
306
302
304
306
274
276
278
274
276
278
202
204
206
202
204
206
.591
.593
.595
.606
.608
.610
.175
.180
.185
.175
.180
.185
.155
.160
.165
.155
.160
.165
1.005
1.008
1.012
1.030
1.034
1.037
1.064
1.067
1.071
1.091
1.094
1.098
1.123
1.127
1.131
1.151
1.155
1.159
PZI
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 27.7 (13.6/14.1)
12740
12741
12742
12893
12894
12895
12896
12743
12744
12745
12495
12496
12497
306
308
310
312
314
316
318
302
304
306
302
304
306
278
280
282
284
286
288
290
274
276
278
274
276
278
206
208
210
212
214
216
218
202
204
206
202
204
206
.605
.607
.609
.611
.613
.615
.617
.612
.614
.616
.627
.629
.931
.186
.191
.196
.202
.207
.213
.218
.175
.180
.185
.175
.181
.186
.165
.170
.175
.180
.186
.191
.196
.155
.160
.165
.155
.160
.165
1.029
1.032
1.035
1.039
1.042
1.046
1.049
1.040
1.044
1.047
1.066
1.069
1.583
1.089
1.093
1.096
1.100
1.103
1.107
1.111
1.102
1.105
1.109
1.129
1.132
1.676
1.150
1.153
1.157
1.161
1.165
1.169
1.172
1.163
1.167
1.170
1.191
1.195
1.769
PZJ
Rated Duration @
.020" Tappet Lift
MI 27.0 (13.3/13.7)
12759
12768
12756
12757
12758
301
303
305
307
309
274
276
278
280
282
204
206
208
210
212
.616
.618
.620
.622
.624
.180
.185
.191
.196
.202
.159
.164
.169
.174
.180
1.047
1.051
1.054
1.057
1.061
1.109
1.112
1.116
1.120
1.123
1.170
1.174
1.178
1.182
1.186
PZJ
Rated Duration @
.020" Tappet Lift
Journal = K,A…
12209
12210
12211
12212
12213
301
303
305
274
276
278
204
206
208
.631
.633
.635
.180
.185
.191
.159
.164
.169
1.073
1.076
1.080
1.136
1.139
1.143
1.199
1.203
1.207
307
309
280
282
210
212
.637
.639
.196
.202
.174
.180
1.083
1.086
1.147
1.150
1.210
1.214
LOBE LIFT
Continued on page 116
SOLID ROLLER
PZI PRO STOCK DRAG ROLLERS
SOLID ROLLER
SOLID ROLLER
PZI PRO STOCK DRAG ROLLERS Continued
The PZI series is a tweaked version of the PRI & PLI Series that should perform better in applications running very close to coil bind, but these do require just a
bit more valve clearance.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
PZJ
Rated Duration @
.020" Tappet Lift
MI 27.0 (13.3/13.7)
Journal = K,A…
12991
12992
12993
12994
12995
301
303
305
307
309
274
276
278
280
282
204
206
208
210
212
.643
.645
.647
.649
.651
.180
.185
.191
.197
.202
.159
.164
.169
.175
.180
1.093
1.097
1.100
1.103
1.107
1.157
1.161
1.165
1.168
1.172
1.222
1.226
1.229
1.233
1.237
PZL
Rated Duration @
.020" Tappet Lift
MI 27.0 (13.3/13.7)
12984
12985
12769
12987
12988
301
303
305
307
309
274
276
278
280
282
203
205
207
209
211
.579
.581
.583
.585
.587
.178
.183
.188
.194
.199
.157
.162
.167
.173
.178
.984
.988
.991
.995
.998
1.042
1.046
1.049
1.053
1.057
1.100
1.104
1.108
1.112
1.115
PZM
Rated Duration @
.020" Tappet Lift
MI 26.6 (13.1/13.5)
12982
302.5
276
206
.583
.186
.165
.991
1.049
1.108
LOBE LIFT
PEZ PFZ PZZ PRO STOCK ROLLERS
The PEZ, PZF and PZZ series are progressively smoother than the PZI & PZL series and should perform extremely well in applications stretching engine speed
above what could be achived with earlier high lift and high area series.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
PEZ
Rated Duration @
.020" Tappet Lift
MI 27.9 (13.7/14.2)
12730
12737
12738
11740
11748
304
306
308
308
308
276
278
280
280
280
204
206
208
208
208
.581
.583
.585
.593
.617
.180
.185
.191
.191
.191
.160
.165
.170
.170
.170
.988
.991
.995
1.008
1.049
1.046
1.049
1.053
1.067
1.111
1.104
1.108
1.112
1.127
1.172
PFZ
Rated Duration @
.020" Tappet Lift
MI 27.5 (13.5/14.0)
11743
308
280
208
.593
.192
.171
1.008
1.067
1.127
PZM
Rated Duration @
.020" Tappet Lift
MI 26.6 (13.1/13.5)
11526
11480
11494
11495
11496
11530
11531
11532
316
308
316
318
320
316
318
320
288
280
288
290
292
288
290
292
215
208
216
218
220
216
218
220
.564
.586
.636
.638
.640
.668
.670
.672
.210
.190
.213
.218
.224
.214
.220
.225
.190
.170
.191
.196
.202
.192
.197
.203
.959
.996
1.081
1.085
1.088
1.136
1.139
1.142
1.015
1.055
1.145
1.148
1.152
1.202
1.206
1.210
1.072
1.113
1.208
1.212
1.216
1.269
1.273
1.277
LOBE LIFT
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The PZI series is a tweaked version of the PRI & PLI Series that should perform better in applications running very close to coil bind, but these do require just a
bit more valve clearance.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
SPH Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 28.3 (13.9/14.4)
12254
12255
12256
12257
12258
303
305
307
309
311
275
277
279
281
283
203
205
207
209
211
.569
.571
.573
.575
.577
.177
.183
.188
.193
.198
.157
.162
.167
.173
.178
1.024
1.028
1.031
1.035
1.039
1.081
1.085
1.089
1.093
1.096
1.138
1.142
1.146
1.150
1.154
SPI Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 28.3 (13.9/14.4)
12214
12215
12216
12217
12218
12219
12220
303
305
307
309
311
313
315
275
277
279
281
283
285
287
203
205
207
209
211
213
215
.577
.579
.581
.583
.585
.587
.589
.178
.183
.188
.193
.198
.204
.209
.158
.163
.167
.173
.178
.183
.188
1.039
1.042
1.046
1.049
1.053
1.057
1.060
1.096
1.100
1.104
1.108
1.112
1.115
1.119
1.154
1.158
1.162
1.166
1.170
1.174
1.178
LOBE LIFT
JI PRO STOCK DRAG ROLLERS
CAMSHAFT TYPE
LOBE #
RATED
DURATION
JI Pro Stock Drag
Rated Duration @
.020" Tappet Lift
MI 27.2 (13.4/13.8)
12390
DURATION IN DEGREES
@ .050
@ .200
301
274
205
12391
303
276
12392
305
278
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
106°
110°
.574
.180
.159
1.033
1.091
1.148
207
.576
.186
.164
1.037
1.094
1.152
209
.578
.191
.170
1.040
1.098
1.156
PNI PRO STOCK DRAG ROLLERS
CAMSHAFT TYPE
LOBE #
RATED
DURATION
PNI Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 29.0 (14.3/14.7)
12294
12295
12296
12297
12298
315
317
319
321
323
DURATION IN DEGREES
@ .050
@ .200
286
288
290
292
294
215
217
219
221
223
LOBE LIFT
.628
.630
.632
.634
.636
TAPPET LIFT @ TDC
106°
110°
.208
.214
.220
.225
.231
.186
.192
.197
.203
.208
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
1.130
1.134
1.138
1.141
1.145
1.193
1.197
1.201
1.205
1.208
1.256
1.260
1.264
1.268
1.272
DKN PRO STOCK DRAG ROLLERS
CAMSHAFT TYPE
LOBE #
RATED
DURATION
DKN Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 27.8 (13.7/14.1)
11258
11259
11260
11261
11262
11263
11265
299
301
303
305
307
309
311
DURATION IN DEGREES
@ .050
@ .200
271
273
275
277
279
281
283
201
203
205
207
209
211
213
LOBE LIFT
.583
.585
.587
.589
.591
.593
.595
TAPPET LIFT @ TDC
106°
110°
.171
.176
.181
.187
.192
.198
.203
.150
.155
.160
.166
.171
.176
.182
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
1.049
1.053
1.057
1.060
1.064
1.067
1.071
1.108
1.112
1.115
1.119
1.123
1.127
1.131
1.166
1.170
1.174
1.178
1.182
1.186
1.190
SOLID ROLLER
SPH & SPI PRO STOCK DRAG ROLLERS
SOLID ROLLER
SOLID ROLLER
FPI PRO STOCK DRAG ROLLERS
The FPI profiles are very high acceleration Pro Stock/Pro Mod style designs faster than any of the "D" or "P" series. Can provide great power with very stiff valve
train and high valve spring loads but require care.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
FPI Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = K,A…
MI 27.9 (13.7/14.2)
12044
12045
12046
12047
12048
304
306
308
310
312
DURATION IN DEGREES
@ .050
@ .200
276
278
280
282
284
206
208
210
212
214
LOBE LIFT
.612
.614
.616
.618
.620
TAPPET LIFT @ TDC
106°
110°
.183
.188
.194
.199
.205
.162
.167
.172
.178
.183
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
1.040
1.044
1.047
1.051
1.054
1.102
1.105
1.109
1.112
1.116
1.163
1.167
1.170
1.174
1.178
FOS PRO STOCK DRAG ROLLERS
The FOS Series is like the FPI but a smoother design that can provide good control at high engine speed with a very stiff valve train system and tight lash settings.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
FOS Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = K,A…
MI 29.1 (14.1/15.0)
12022
12023
12094
12095
12127
12149
307
309
311
313
317
321
DURATION IN DEGREES
@ .050
@ .200
278
280
282
284
288
292
207
209
211
213
217
221
LOBE LIFT
.617
.619
.621
.623
.623
.623
TAPPET LIFT @ TDC
106°
110°
.191
.197
.202
.208
.219
.229
.170
.176
.181
.186
.197
.208
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
1.049
1.052
1.056
1.059
1.059
1.059
1.111
1.114
1.118
1.121
1.121
1.121
1.172
1.176
1.180
1.184
1.184
1.184
FSL PRO STOCK DRAG ROLLERS
The FLS is like the FOS but for systems that require looser lash or do not have as stiff of a valve train system. Work well on the exhaust in smaller cubic inch
and as an intake in larger cubic inch applications.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
FSL Pro Stock
Rated Duration @
.020" Tappet Lift
MI 30.5 (14.7/15.8)
11192
11194
11195
11196
323
327
329
331
DURATION IN DEGREES
@ .050
@ .200
292
296
298
300
219
223
225
227
LOBE LIFT
.620
.622
.623
.624
TAPPET LIFT @ TDC
106°
110°
.221
.232
.237
.243
.199
.210
.215
.221
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
1.054
1.057
1.059
1.061
1.116
1.120
1.121
1.123
1.178
1.182
1.184
1.186
FDZ PRO STOCK DRAG ROLLERS
The FDZ is even faster than the FPI for maximum area in controlled engine speed applications or to obtain the area associated with high rocker ratios with lower
ratio systems.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
FDZ Pro Stock
Rated Duration @
.020" Tappet Lift
Journal = K,A,0…
MI 26.7 (13.1/13.6)
11060
11061
11062
11066
303
305
307
303
DURATION IN DEGREES
@ .050
@ .200
276
278
280
276
209
211
211
209
LOBE LIFT
.620
.622
.624
.639
TAPPET LIFT @ TDC
106°
110°
.190
.196
.207
.190
.168
.173
.179
.168
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
1.054
1.057
1.061
1.086
1.116
1.120
1.123
1.150
1.178
1.182
1.186
1.214
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The FGZ are smoothed out versions on the FGZ for similar type applications but are definitely more stable as engine speeds increase. These work very well
achiving outstanding area in lower ratio applications.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
FGZ Pro Stock
Rated Duration @
.020" Tappet Lift
Journal = A,0…
MI 26.8 (13.1/13.7)
11064
11075
11076
11077
11078
301
303
305
307
309
DURATION IN DEGREES
@ .050
@ .200
274
276
278
280
282
207
209
211
213
215
LOBE LIFT
.660
.662
.664
.666
.668
TAPPET LIFT @ TDC
106°
110°
.190
.196
.202
.208
.214
.168
.173
.179
.185
.190
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
1.122
1.125
1.129
1.132
1.136
1.188
1.192
1.195
1.199
1.202
1.254
1.258
1.262
1.265
1.269
FPJ PRO STOCK DRAG ROLLERS
The FPJ fast ramp with almost constant positive acceleration design philosophy in between the "D", "S" and "P" families. Slightly quicker than the FPI.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
FPJ Pro Stock Drag
Rated Duration @
.020" Tappet Lift
MI 27.0 (13.2/13.8)
12488
DURATION IN DEGREES
@ .050
@ .200
302
275
206
12489
304
277
12490
306
279
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
106°
110°
.596
.184
.163
1.013
1.073
1.132
208
.598
.190
.168
1.017
1.076
1.136
210
.600
.195
.173
1.020
1.080
1.140
DJP ROLLERS
The DJP is a newer entry in the "D" series of Pro Stock style lobes with faster ramps than all the earlier designs. Require tight lash and very stiff rocker
arm systems.
CAMSHAFT TYPE
DJP
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 26.3 (13.0/13.3)
LOBE #
RATED
DURATION
11268
11269
11270
11271
11272
11273
11275
296
298
300
302
304
306
308
DURATION IN DEGREES
@ .050
@ .200
270
272
274
276
278
280
282
202
204
206
208
210
212
214
LOBE LIFT
.611
.613
.615
.617
.619
.621
.623
TAPPET LIFT @ TDC
106°
110°
.172
.178
.183
.188
.194
.200
.205
.151
.156
.161
.167
.172
.177
.183
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.7
1.9
.917
.920
.923
.926
.929
.932
.935
1.039
1.042
1.046
1.049
1.052
1.056
1.059
1.161
1.165
1.169
1.172
1.176
1.180
1.184
PVI PRO STOCK DRAG ROLLERS
The PVI series is actually a bit like both a faster "P" series lobe and an offset version of the DJP. The offset design results in more piston to valve on the intake
than other desings with similar .200" specs.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
PVI Pro Stock Drag
Rated Duration @
.020" Tappet Lift
MI 27.0 (13.2/13.8)
12488
302
275
206
.596
.184
.163
1.013
1.073
1.132
12489
304
277
208
.598
.190
.168
1.017
1.076
1.136
12490
306
279
210
.600
.195
.173
1.020
1.080
1.140
LOBE LIFT
SOLID ROLLER
FGZ PRO STOCK DRAG ROLLERS
SOLID ROLLER
SOLID ROLLER
PSB PBM PBL PRO MOD DRAG ROLLERS
CAMSHAFT TYPE
LOBE #
RATED
DURATION
PSB Pro Mod Drag
Rated Duration @
.020" Tappet Lift
Journal = L,K,A…
MI 29.1 (14.2/14.9)
12399
12341
12342
12343
12344
11352
11353
11354
PBM Pro Mod Drag
Rated Duration @
.020" Tappet Lift
MI 30.3 (14.5/15.8)
PBL Pro Mod Drag
Rated Duration @
.020" Tappet Lift
MI 30.9 (14.7/16.2)
DURATION IN DEGREES
@ .050
@ .200
314
316
318
320
324
318
320
324
285
287
289
291
293
289
291
293
213
215
217
219
221
217
219
221
11368
317
287
11369
319
11370
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
106°
110°
.656
.658
.660
.662
.664
.688
.690
.692
.204
.209
.215
.221
.227
.216
.222
.227
.182
.187
.193
.198
.204
.193
.199
.204
1.181
1.184
1.188
1.192
1.195
1.238
1.242
1.246
1.246
1.250
1.254
1.258
1.262
1.307
1.311
1.315
1.312
1.316
1.320
1.324
1.328
1.376
1.380
1.384
214
.653
.208
.186
1.175
1.241
1.306
289
216
.655
.214
.191
1.179
1.245
1.310
321
291
218
.657
.219
.197
1.183
1.248
1.314
11375
316
285
211
.622
.208
.186
1.120
1.182
1.244
11376
318
287
213
.624
.214
.191
1.123
1.186
1.248
11377
320
289
215
.626
.219
.197
1.127
1.189
1.252
PSA PRO STOCK DRAG ROLLERS
The PSA series is a smoother version than the PSB with otherwise similar characteristics for higher RPM applications that require more spring life than provided
with the PSB.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
PSA Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = MG,K,A…
MI 29.4 (14.4/15.0)
12330
12331
12332
12333
12334
313
315
317
319
321
DURATION IN DEGREES
@ .050
@ .200
284
286
288
290
292
211
213
215
217
219
LOBE LIFT
.632
.634
.636
.638
.640
TAPPET LIFT @ TDC
106°
110°
.198
.203
.209
.215
.220
.177
.182
.187
.193
.197
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
1.138
1.141
1.145
1.148
1.152
1.201
1.205
1.208
1.212
1.216
1.264
1.268
1.272
1.276
1.280
PMZ PRO MOD DRAG ROLLERS
The PMZ Pro Mod style designs are similar to the PSB Series with increased area for lower RPM applications.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
PMZ Pro Mod Drag
Rated Duration @
.020" Tappet Lift
Journal = L,K,A…
MI 27.3 (13.1/14.2)
12352
12353
12356
12357
12358
314
316
318
320
322
DURATION IN DEGREES
@ .050
@ .200
287
289
291
293
295
219
221
223
225
227
LOBE LIFT
.666
.668
.670
.672
.674
TAPPET LIFT @ TDC
106°
110°
.220
.226
.232
.239
.245
.196
.202
.208
.214
.220
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
1.199
1.202
1.206
1.210
1.213
1.265
1.269
1.273
1.277
1.281
1.332
1.336
1.340
1.344
1.348
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
Lower ratio intake design for 70mm, 75mm or 78mm effective journal size cams and low (1.5:1 to 1.7 ratios).
CAMSHAFT TYPE
LOBE #
RATED
DURATION
PIC Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = A,C,O…
MI 27.8 (13.6/14.2)
11080
11081
11082
11083
11084
312
314
316
318
320
DURATION IN DEGREES
@ .050
@ .200
284
286
288
290
292
215
217
219
221
223
LOBE LIFT
.718
.720
.722
.724
.726
TAPPET LIFT @ TDC
106°
110°
.209
.215
.221
.228
.234
.186
.192
.197
.203
.209
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
1.077
1.080
1.083
1.086
1.089
1.149
1.152
1.155
1.158
1.162
1.221
1.224
1.227
1.231
1.234
SOLID ROLLER (G = LARGE JOURNAL EXH.)
DRX DRAG EXHAUST ROLLERS
The DRX Drag Exhaust lobes are a faster version of our XCX designs. They have a faster opening to increase torque and have more area under the curve. These
work well with DRS intake lobes on 60mm or larger cores.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
DRX Drag Exh.
Rated Duration @
.020" Tappet Lift
Journal = R,M,K…
MI 35.0 (16.0/19.0)
1995
1996
1997
1998
1999
335
337
339
341
343
DURATION IN DEGREES
@ .050
@ .200
300
302
304
306
308
215
217
219
221
223
LOBE LIFT
.529
.531
.533
.535
.537
TAPPET LIFT @ TDC
106°
110°
.202
.207
.212
.216
.221
.185
.189
.193
.198
.202
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
.952
.956
.959
.963
.967
1.005
1.009
1.013
1.017
1.020
1.058
1.062
1.066
1.070
1.074
XK PRO STOCK DRAG ROLLERS
These profiles are high RPM Pro Stock designs for use in modern professional drag race classes. The XK series is two steps faster than the XCX and one step
faster than the XJX series.
CAMSHAFT TYPE
XK Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = R,M,K…
MI 36.2 (18.0/18.2)
LOBE #
RATED
DURATION
1734
1735
1723
1695
2724
2725
2726
2727
2728
334
336
337
338
340
342
344
346
348
DURATION IN DEGREES
@ .050
@ .200
297
299
300
301
303
305
307
309
311
217
219
220
222
223
225
227
229
231
LOBE LIFT
.566
.566
.566
.566
.568
.570
.572
.574
.576
TAPPET LIFT @ TDC
106°
110°
.215
.220
.222
.225
.229
.234
.239
.244
.249
.194
.199
.202
.204
.208
.213
.218
.223
.228
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
1.019
1.019
1.019
1.019
1.022
1.026
1.030
1.033
1.037
1.075
1.075
1.075
1.075
1.079
1.083
1.087
1.091
1.094
1.132
1.132
1.132
1.132
1.136
1.140
1.144
1.148
1.152
SOLID ROLLER
PIC PRO STOCK DRAG ROLLERS
SOLID ROLLER
SOLID ROLLER
XKL PRO STOCK DRAG ROLLERS
These profiles are increased lift versions of the original XK series.
CAMSHAFT TYPE
XKL Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 36.0 (17.9/18.1)
LOBE #
RATED
DURATION
1833
1834
1775
1835
1836
1837
1847
1848
1849
1858
1859
334
336
338
340
342
344
346
348
350
352
354
DURATION IN DEGREES
@ .050
@ .200
298
300
302
304
306
308
310
312
314
316
318
220
222
224
226
228
230
232
234
236
238
240
LOBE LIFT
.588
.590
.592
.594
.596
.598
.600
.602
.604
.606
.608
TAPPET LIFT @ TDC
106°
110°
.220
.226
.231
.236
.242
.247
.253
.258
.264
.269
.275
.200
.205
.210
.215
.220
.226
.231
.236
.242
.247
.253
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
1.000
1.003
1.006
1.010
1.013
1.017
1.020
1.023
1.027
1.030
1.034
1.058
1.062
1.066
1.069
1.073
1.076
1.080
1.084
1.087
1.091
1.094
1.117
1.121
1.125
1.129
1.132
1.136
1.140
1.144
1.148
1.151
1.155
XK .635" PRO STOCK DRAG EXHAUST ROLLERS
The XK Pro Stock Drag Exhaust lobes are a faster version of our XCX designs. The .635" lift series is optimized for big inch applications and 62.85 or
65mm journals.
CAMSHAFT TYPE
XK .635"
Pro Stock Drag Exh.
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 36.0 (17.9/18.1)
LOBE #
RATED
DURATION
11560
11561
1562
1563
11563
1564
1565
1569
1571
344
346
348
352
354
356
360
362
364
DURATION IN DEGREES
@ .050
@ .200
307
309
311
315
317
319
323
325
327
228
230
232
236
238
240
244
246
248
LOBE LIFT
.635
.635
.635
.635
.635
.635
.635
.635
.635
TAPPET LIFT @ TDC
106°
110°
.242
.248
.254
.264
.270
.275
.286
.291
.296
.220
.226
.232
.242
.248
.253
.264
.269
.274
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
1.080
1.080
1.080
1.080
1.080
1.080
1.080
1.080
1.080
1.143
1.143
1.143
1.143
1.143
1.143
1.143
1.143
1.143
1.207
1.207
1.207
1.207
1.207
1.207
1.207
1.207
1.207
XKH EXHAUST ROLLERS
These profiles are increased lift versions of the XK .635" series.
CAMSHAFT TYPE
XKH Exh.
Rated Duration @
.020" Tappet Lift
Journal = L,K,A…
MI 34.3 (16.9/17.4)
LOBE #
RATED
DURATION
1825
1789
1792
1823
1794
1790
344
356
360
362
364
357
DURATION IN DEGREES
@ .050
@ .200
310
322
326
328
330
323
233
245
249
251
253
247
LOBE LIFT
.673
.685
.689
.691
.693
.700
TAPPET LIFT @ TDC
106°
110°
.258
.293
.304
.310
.316
.299
.236
.270
.281
.287
.292
.276
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
1.144
1.165
1.171
1.175
1.178
1.190
1.211
1.233
1.240
1.244
1.247
1.260
1.279
1.302
1.309
1.313
1.317
1.330
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The XM Pro Exhaust profiles are similar to the XKX but have higher acceleration and more area.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
XM Pro Exh.
Rated Duration @
.020" Tappet Lift
MI 35.3 (17.5/17.8)
2078
DURATION IN DEGREES
@ .050
@ .200
331
296
219
2079
333
298
2055
335
300
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
106°
110°
.553
.217
.197
.940
.995
1.051
221
.555
.222
.202
.944
.999
1.055
222
.557
.227
.206
.947
1.003
1.058
ZLX PRO STOCK DRAG EXHAUST ROLLERS
The ZLX Pro Stock Drag Exhaust Series is based off of the popular XKX Exhaust Series but is quicker off the seat.
CAMSHAFT TYPE
ZLX Pro Stock Drag Exh.
Rated Duration @
.020" Tappet Lift
Journal = R,M,K,A…
MI 33.0 (15.8/17.2)
LOBE #
RATED
DURATION
12823
12825
12827
12829
12831
12833
12835
12836
12837
12839
336
340
344
348
352
356
360
362
364
368
DURATION IN DEGREES
@ .050
@ .200
303
307
311
315
319
323
327
329
331
335
225
229
233
236
240
244
248
251
253
257
LOBE LIFT
.570
.570
.570
.570
.570
.570
.570
.570
.570
.570
TAPPET LIFT @ TDC
106°
110°
.233
.244
.254
.264
.274
.284
.294
.298
.303
.312
.213
.223
.234
.244
.254
.264
.274
.278
.283
.293
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
1.026
1.026
1.026
1.026
1.026
1.026
1.026
1.026
1.026
1.026
1.083
1.083
1.083
1.083
1.083
1.083
1.083
1.083
1.083
1.083
1.140
1.140
1.140
1.140
1.140
1.140
1.140
1.140
1.140
1.140
NX PRO STOCK DRAG EXHAUST ROLLERS
Like the XM series, the NX Pro Exhaust profiles are similar to the XKX but with higher acceleration and more area. These also have slightly shorter ramps that
work very well with steeper valve seats.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
NX Pro Stock Drag Exh.
Rated Duration @
.020" Tappet Lift
Journal = R,M,K,A…
MI 31.2 (15.1/16.1)
2577
2578
2579
2580
2581
332
334
336
338
340
DURATION IN DEGREES
@ .050
@ .200
301
303
305
307
309
224
226
228
230
232
LOBE LIFT
.562
.564
.566
.568
.570
TAPPET LIFT @ TDC
106°
110°
.230
.235
.240
.246
.251
.211
.215
.220
.226
.231
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
1.012
1.015
1.019
1.022
1.026
1.068
1.072
1.075
1.079
1.083
1.124
1.128
1.132
1.136
1.140
SOLID ROLLER
XM PRO EXHAUST ROLLERS
SOLID ROLLER
SOLID ROLLER
NXX ROLLERS
The NXX is similar to the XKX Drag Rollers but optimized for lower RPM applications. They work especially well in nitrous applications; the increased area under
the curve (compared to most exhaust designs) reduces exhaust pumping losses. These asymmetric designs have lower opening acceleration to provide a wide
power band and limit loading when opening against high cylinder pressures.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.6
1.7
1.8
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
NXX
Rated Duration @
.020" Tappet Lift
Journal = B,R,M,K…
MI 30.8 (14.9/15.9)
11302
11304
11306
11308
11310
11312
11314
323
327
331
335
339
343
347
292
296
300
304
308
312
316
213
217
221
225
229
233
237
.516
.520
.524
.528
.532
.536
.540
.202
.211
.220
.229
.239
.248
.257
.183
.192
.183
.211
.220
.229
.239
.826
.832
.838
.845
.851
.858
.864
.877
.884
.891
.898
.904
.911
.918
.929
.936
.943
.950
.958
.965
.972
NXH
Rated Duration @
.020" Tappet Lift
Journal = R,M,K,A…
MI 30.6 (14.8/15.8)
11340
11342
11344
11346
11348
341
345
349
353
357
310
314
318
322
326
231
235
239
243
247
.550
.554
.558
.562
.566
.247
.257
.266
.276
.285
.228
.237
.247
.257
.266
.880
.886
.893
.899
.906
.935
.942
.949
.955
.962
.990
.997
1.004
1.012
1.019
NXL
Rated Duration @
Journal = M,L,K,A…
MI 29.6 (14.3/15.3)
12338
12339
12349
11363
11364
355
357
359
361
363
325
327
329
331
333
250
252
254
256
258
.630
.630
.630
.630
.630
.302
.307
.312
.317
.322
.281
.286
.291
.296
.301
1.008
1.008
1.008
1.008
1.008
1.071
1.071
1.071
1.071
1.071
1.134
1.134
1.134
1.134
1.134
LOBE LIFT
VOX PRO DRAG RACE ROLLERS
The VOX Rollers are designed to work with the VOI intakes and are quicker than most exhaust lobes and could be used as an intake if needed.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
VOX Pro
Rated Duration @
.020" Tappet Lift
MI 31.1 (15.3/15.8)MI
30.8 (14.9/15.9)
11173
DURATION IN DEGREES
@ .050
@ .200
328
297
217
11175
332
301
11177
336
305
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
106°
110°
.529
.207
.189
.952
1.005
1.058
221
.531
.217
.198
.956
1.009
1.062
225
.533
.226
.207
.959
1.013
1.066
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
These are an excellent choice for 2.165" and smaller journal camshafts where very high lobe lift lobes can compromise the base circle diameter, core strength
and stability under high loads. These have shorter seat timing than older Fuel/Blown ALC lobes but should be very good in their place if run with tighter lash.
CAMSHAFT TYPE
TPX Pro
Rated Duration @
.020" Tappet Lift
Journal = R,M…
MI 32.7 (15.7/17.0)
LOBE #
RATED
DURATION
11145
11147
11149
11151
11153
11155
11157
330
334
338
342
346
350
354
DURATION IN DEGREES
@ .050
@ .200
297
301
305
309
313
317
321
216
220
224
228
232
236
240
LOBE LIFT
.525
.527
.529
.531
.533
.535
.537
TAPPET LIFT @ TDC
106°
110°
.209
.218
.228
.237
.246
.256
.265
.190
.199
.209
.218
.227
.237
.246
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
.893
.896
.899
.903
.906
.910
.913
.945
.949
.952
.956
.959
.963
.967
.998
1.001
1.005
1.009
1.013
1.017
1.020
SOLID ROLLER
TSX PRO ROLLERS
SOLID ROLLER
SOLID ROLLER
PRX PLX PRO STOCK DRAG ROLLERS
The PRX and PLX are great baseline Pro Stock exhaust style drag race roller lobes with excellent area under the curve and require less valve relief than lobes
with similar ramp quickness and area.
CAMSHAFT TYPE
PRX Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = R,M,K,A…
MI 31.2 (14.9/16.3)
PLX Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 30.3 (14.4/16.9)
LOBE #
RATED
DURATION
12731
12732
12733
12735
12736
12437
12438
12439
12440
12441
12442
12443
12444
12445
12446
12447
12448
12449
12450
12451
305
307
309
313
315
317
319
321
323
325
327
329
331
333
335
337
339
341
343
345
12455
12456
12457
12458
12459
12460
12461
12462
12463
12264
12265
327
329
331
333
335
337
339
341
343
345
347
DURATION IN DEGREES
@ .050
@ .200
274
276
278
282
284
286
288
290
292
294
296
298
300
302
304
306
308
310
312
314
197
199
201
205
207
209
211
213
215
217
219
221
223
225
227
229
231
233
235
237
297
299
301
303
305
307
309
311
313
315
317
223
225
227
229
231
233
235
237
239
241
243
LOBE LIFT
.540
.542
.544
.548
.550
.552
.554
.556
.558
.560
.562
.564
.566
.568
.570
.572
.574
.576
.578
.580
.608
.610
.612
.614
.616
.618
.620
.622
.624
.626
.628
TAPPET LIFT @ TDC
106°
110°
.164
.169
.174
.183
.188
.193
.198
.203
.208
.213
.218
.223
.228
.234
.239
.244
.249
.254
.259
.264
.145
.150
.155
.164
.169
.173
.178
.183
.188
.193
.198
.203
.208
.213
.218
.223
.228
.233
.239
.244
.231
.237
.253
.248
.253
.259
.265
.270
.276
.281
.287
.209
.215
.231
.226
.231
.237
.242
.248
.253
.259
.264
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.75
1.85
1.95
.945
.949
.952
.959
.963
.966
.970
.973
.977
.980
.984
.987
.991
.994
.998
1.001
1.005
1.008
1.012
1.015
.999
1.003
1.006
1.014
1.018
1.021
1.025
1.029
1.032
1.036
1.040
1.043
1.047
1.051
1.055
1.058
1.062
1.066
1.069
1.073
1.053
1.057
1.061
1.069
1.073
1.076
1.080
1.084
1.088
1.092
1.096
1.100
1.104
1.108
1.112
1.115
1.119
1.123
1.127
1.131
1.6
1.7
1.8
.973
.976
.979
.982
.986
.989
.992
.995
.998
1.002
1.005
1.034
1.037
1.040
1.044
1.047
1.051
1.054
1.057
1.061
1.064
1.068
1.094
1.098
1.102
1.105
1.109
1.112
1.116
1.120
1.123
1.127
1.130
PRZ PRO STOCK DRAG ROLLERS
Like lower PLX but could achieve similar motion with lower rocker ratios or achieve more lift, and acceleration if used with the same ratio.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
PRZ Pro Stock Drag
Rated Duration @
.020" Tappet Lift
MI 30.1 (14.2/15.9)
12470
DURATION IN DEGREES
@ .050
@ .200
334
304
230
12471
336
306
12472
338
308
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
106°
110°
.596
.249
.228
1.013
1.073
1.132
232
.598
.255
.233
1.017
1.076
1.136
234
.600
.260
.238
1.020
1.080
1.140
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
Like PLX but with some offset to increase PTV clearance by about .006" at the tappet on the exhaust.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
PVX Pro Stock Drag
Rated Duration @
.020" Tappet Lift
MI 29.0 (13.9/15.1)
12776
12778
DURATION IN DEGREES
@ .050
@ .200
328
299
226
332
303
230
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.60
1.70
1.80
106°
110°
.610
.231
.209
.976
1.037
1.098
.614
.242
.220
.982
1.044
1.105
SPX PRO STOCK DRAG ROLLERS
The SPX exhaust series is simmilar to the XJX, NX and NXX while optimized to work extremely well with the SPH and SPI Intake Series.
CAMSHAFT TYPE
SPX Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = R,M,K,A…
MI 35.8 (17.6/18.2)
LOBE #
RATED
DURATION
12221
12222
12223
12224
12225
12226
12227
12228
12229
328
330
332
334
336
338
340
342
344
DURATION IN DEGREES
@ .050
@ .200
292
294
296
298
300
302
304
306
308
211
213
215
217
219
221
223
225
227
LOBE LIFT
.555
.557
.559
.561
.563
.565
.567
.569
.571
TAPPET LIFT @ TDC
106°
110°
.199
.204
.209
.214
.219
.224
.229
.234
.239
.180
.185
.189
.194
.199
.204
.209
.214
.219
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
.999
1.003
1.006
1.010
1.013
1.017
1.021
1.024
1.028
1.055
1.058
1.062
1.066
1.070
1.074
1.077
1.081
1.085
1.110
1.114
1.118
1.122
1.126
1.130
1.134
1.138
1.142
XCM PRO STOCK DRAG ROLLERS
The XCM exhaust series is simmilar to the SPX except faster with more lift, area and acceleration.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
XCM Pro Stock Drag
Rated Duration @
.020" Tappet Lift
MI 35.0 (17.2/17.8)
12398
DURATION IN DEGREES
@ .050
@ .200
341
306
228
12402
343
308
12403
345
310
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
106°
110°
.601
.242
.221
1.082
1.142
1.202
230
.603
.248
.226
1.085
1.146
1.206
232
.605
.253
.231
1.089
1.150
1.210
XNR ROLLERS
New exhaust profile like PRX but with almost no ramp.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
XNR
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 30.5 (14.9/15.6)
12804
12805
12806
12807
12808
331
333
335
337
339
DURATION IN DEGREES
@ .050
@ .200
300
302
304
306
308
223
225
227
229
231
LOBE LIFT
.588
.590
.592
.594
.596
TAPPET LIFT @ TDC
106°
110°
.229
.234
.240
.245
.250
.208
.214
.219
.224
.229
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
1.000
1.003
1.006
1.010
1.013
1.058
1.062
1.066
1.069
1.073
1.117
1.121
1.125
1.129
1.132
SOLID ROLLER
PVX PRO STOCK DRAG ROLLERS
SOLID ROLLER
SOLID ROLLER
SXZ PRO STOCK DRAG ROLLERS
The SXZ series is our experiment with a fast opening, slower closing, high accleration exhaust series. These are designed to dealay the exhaust opening for
increased torque while opening very quickly to minimize exhaust pumping losses. May be very sensitive to headers and collector configuration.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
SXZ Pro Stock Drag
Rated Duration @
.020" Tappet Lift
MI 28.5 (13.8/14.7)
12795
DURATION IN DEGREES
@ .050
@ .200
333
305
232
12796
335
307
12797
337
309
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
106°
110°
.577
.251
.230
1.039
1.096
1.154
234
.579
.256
.235
1.042
1.100
1.158
236
.581
.261
.241
1.046
1.104
1.162
XRX PRO STOCK DRAG ROLLERS
CAMSHAFT TYPE
LOBE #
RATED
DURATION
XRX Pro Stock Drag
Rated Duration @
.020" Tappet Lift
MI 30.8 (15.0/15.8)
2383
DURATION IN DEGREES
@ .050
@ .200
331
300
224
2384
333
302
2369
335
304
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
106°
110°
.565
.231
.211
.961
1.017
1.074
226
.567
.237
.216
.964
1.021
1.077
228
.569
.242
.221
.967
1.024
1.081
PVS PRO STOCK DRAG EXHAUST ROLLERS
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.75
1.85
1.95
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
PVS Pro Stock Drag Exh.
Rated Duration @
.020" Tappet Lift
MI 33.8 (16.4/17.4)
12474
334
300
220
.560
.219
.200
.980
1.036
1.092
12475
336
302
222
.562
.224
.204
.984
1.040
1.096
12467
338
304
224
.564
.229
.209
.987
1.043
1.100
LOBE LIFT
ZZX PRO STOCK DRAG EXHAUST ROLLERS
The ZZX Exhaust lobes have a special ramp offset to give slightly more piston to valve clearance while otherwise behaving very much like the fast ramp PZN series.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
ZZX Pro Stock Drag Exh.
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 27.8 (13.6/14.2)
12951
12952
12953
12954
12955
326
328
330
332
334
DURATION IN DEGREES
@ .050
@ .200
298
300
302
304
306
226
228
230
232
234
LOBE LIFT
.576
.578
.580
.582
.584
TAPPET LIFT @ TDC
106°
110°
.234
.239
.245
.250
.255
.212
.217
.222
.228
.234
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.75
1.85
1.95
1.008
1.012
1.015
1.019
1.022
1.066
1.069
1.073
1.077
1.080
1.123
1.127
1.131
1.135
1.139
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The PZN, PZJ and PYJ quicker ramp Pro Stock Exhaust designs have proven themselves as an upgrade over the older XJX & XKX style designs in steep seat
angle applications. The PZNs are the fastest and most aggressive, while the PZJ and PYJ lobes are smoother and better at high engine speed.
CAMSHAFT TYPE
PZN Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 28.6 (13.8/14.8)
PZJ Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 29.1 (14.3/14.8)
PYJ Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = M,K,A…
MI 29.7 (14.4/15.3)
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.75
1.85
1.95
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
12538
12539
12541
12542
12544
12545
12546
12547
12548
12549
12551
12590
320
322
324
326
328
330
332
334
336
338
340
336
291
293
295
297
299
301
303
305
307
309
311
307
218
220
222
224
226
228
230
232
234
236
238
234
.561
.563
.565
.567
.569
.571
.573
.575
.577
.579
.581
.595
.214
.219
.224
.230
.235
.240
.245
.251
.256
.261
.266
.258
.193
.198
.203
.209
.214
.219
.224
.229
.235
.240
.245
.237
.982
.985
.989
.992
.996
.999
1.003
1.006
1.010
1.013
1.017
1.041
1.038
1.042
1.045
1.049
1.053
1.056
1.060
1.064
1.067
1.071
1.075
1.101
1.094
1.098
1.102
1.106
1.110
1.113
1.117
1.121
1.125
1.129
1.133
1.160
12605
12606
12596
12607
12619
12620
12621
12629
328
330
331
332
334
336
338
340
299
301
302
303
305
307
309
311
223
225
226
227
229
231
233
235
.569
.571
.572
.573
.575
.577
.579
.581
.227
.232
.235
.238
.242
.248
.253
.259
.206
.212
.214
.217
.222
.227
.232
.238
.996
.999
1.001
1.003
1.006
1.010
1.013
1.017
1.053
1.056
1.058
1.060
1.064
1.067
1.071
1.075
1.110
1.113
1.115
1.117
1.121
1.125
1.129
1.133
12611
12623
12624
12625
12626
329
331
333
335
337
299
301
303
305
307
223
225
227
229
231
.569
.571
.573
.575
.577
.225
.230
.235
.241
.246
.205
.210
.215
.220
.225
.996
.999
1.003
1.006
1.010
1.053
1.056
1.060
1.064
1.067
1.110
1.113
1.117
1.121
1.125
LOBE LIFT
DXP PRO STOCK DRAG ROLLERS
CAMSHAFT TYPE
LOBE #
RATED
DURATION
DXP Pro Stock Drag
Rated Duration @
.020" Tappet Lift
MI 30.0 (14.5/15.5)
12114
12116
12117
12118
334
338
340
342
DURATION IN DEGREES
@ .050
@ .200
304
308
310
312
228
232
234
236
LOBE LIFT
.566
.570
.572
.574
TAPPET LIFT @ TDC
106°
110°
.241
.251
.257
.262
.221
.231
.236
.241
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.7
1.8
1.9
.962
.969
.972
.976
1.019
1.026
1.030
1.033
1.075
1.083
1.087
1.091
XCH PRO STOCK DRAG ROLLERS
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
XCH Pro Stock Drag
Rated Duration @
.020" Tappet Lift
MI 28.4 (13.8/14.6)
11282
328
300
227
.562
.239
.218
1.012
1.068
1.124
11283
330
302
229
.564
.244
.223
1.015
1.072
1.128
11284
332
304
231
.566
.249
.229
1.019
1.075
1.132
LOBE LIFT
SOLID ROLLER
PZN PZJ PYJ PRO STOCK DRAG ROLLERS
SOLID ROLLER
SOLID ROLLER
TXJ PRO STOCK DRAG ROLLERS
CAMSHAFT TYPE
LOBE #
RATED
DURATION
TXJ Pro Stock Drag
Rated Duration @
.020" Tappet Lift
MI 33.5 (16.3/17.2)
12072
DURATION IN DEGREES
@ .050
@ .200
330
297
218
12073
332
299
12074
334
301
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
106°
110°
.551
.214
.194
.992
1.047
1.102
220
.553
.219
.199
.995
1.051
1.106
222
.555
.224
.204
.999
1.055
1.110
PNX PRO STOCK DRAG ROLLERS
CAMSHAFT TYPE
PNX Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = MG,K,A…
MI 32.1 (15.0/17.1)
LOBE #
RATED
DURATION
12325
12313
12314
12315
12316
12317
12318
351
353
355
357
359
361
363
DURATION IN DEGREES
@ .050
@ .200
319
321
323
325
327
329
331
241
243
245
247
249
251
253
LOBE LIFT
.595
.597
.599
.601
.603
.605
.607
TAPPET LIFT @ TDC
106°
110°
.276
.281
.286
.291
.296
.301
.306
.255
.260
.266
.271
.276
.281
.286
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
1.071
1.075
1.078
1.082
1.085
1.089
1.093
1.131
1.134
1.138
1.142
1.146
1.150
1.153
1.190
1.194
1.198
1.202
1.206
1.210
1.214
XMZ XJZ PRO MOD EXHAUST DRAG ROLLERS
The XMZ and XJZ lobes are outstanding in Pro Mod type applications where one needs maximum area under the curve to remove spent gasses and reduce
exhaust pumping losses. The XJZ lobes are just a bit smoother for higher RPM applications where spring life is a concern.
CAMSHAFT TYPE
XMZ Pro Mod Exh.
Rated Duration @
.020" Tappet Lift
Journal = L,K,A…
MI 27.7 (13.5/14.2)
XJZ Pro Mod. Exh.
Rated Duration @
.020" Tappet Lift
Journal = L,K,A…
MI 29.5 (14.4/15.1)
LOBE #
RATED
DURATION
12328
12329
12361
12362
12367
12368
12369
12387
12388
12389
12401
14038
14039
14040
14042
14044
DURATION IN DEGREES
@ .050
@ .200
349
351
353
355
357
359
361
357
359
361
365
321
323
325
327
329
331
333
329
331
333
337
250
252
254
256
258
260
263
259
261
263
267
350
352
354
358
362
320
322
324
328
332
246
248
250
254
258
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.8
1.9
2.0
106°
110°
.627
.629
.631
.633
.635
.637
.639
.660
.662
.664
.668
.309
.315
.321
.327
.333
.337
.343
.335
.340
.346
.358
.287
.292
.299
.305
.310
.315
.321
.312
.317
.323
.334
1.129
1.132
1.136
1.139
1.143
1.147
1.150
1.188
1.192
1.195
1.202
1.191
1.195
1.199
1.203
1.207
1.210
1.214
1.254
1.258
1.262
1.269
1.254
1.258
1.262
1.266
1.270
1.274
1.278
1.320
1.324
1.328
1.336
.638
.640
.642
.644
.646
.292
.297
.303
.313
.324
.270
.275
.281
.291
.302
1.148
1.152
1.156
1.159
1.163
1.212
1.216
1.220
1.224
1.227
1.276
1.280
1.284
1.288
1.292
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
Lower ratio exhaust design for 70mm, 75mm or 78mm effective journal size cams and low (1.5:1 to 1.7) ratios.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
PXC Pro Stock Drag
Rated Duration @
.020" Tappet Lift
Journal = A,C,O…
MI 33.9 (16.3/17.6)
11090
11091
11092
11093
11094
348
350
352
354
356
DURATION IN DEGREES
@ .050
@ .200
314
316
318
320
322
238
240
242
244
246
LOBE LIFT
.698
.700
.702
.704
.706
TAPPET LIFT @ TDC
106°
110°
.276
.282
.288
.294
.300
.252
.258
.264
.270
.276
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
1.047
1.050
1.053
1.056
1.059
1.117
1.120
1.123
1.126
1.130
1.187
1.190
1.193
1.197
1.200
SOLID ROLLER (H = TOP FUEL & ALK)
UDR FUEL & ALC INTAKE ROLLERS
The UDR designs take advantage of our latest design techniques and provide higher lift and more area than older designs while improving stability for higher
RPM operation, even with the Hemi style valve train geometry. Work extremely well in any application that needs excellent area and durability, especially those
that cannot run as stiff or light of a valve train & rocker system as might be found in Pro Stock.
CAMSHAFT TYPE
UDR Rollers
Rated Duration @
.020" Tappet Lift
Journal = B,R,M…
MI 32.9 (16.2/16.7)
LOBE #
RATED
DURATION
2067
2069
2068
2047
2073
2048
2074
2049
2075
2050
2076
2051
2077
306
308
310
312
314
316
318
320
322
324
326
328
330
DURATION IN DEGREES
@ .050
@ .200
273
275
277
279
281
283
285
287
289
291
293
295
297
192
194
196
198
199
202
203
205
207
209
211
213
215
LOBE LIFT
.520
.521
.523
.525
.526
.526
.526
.526
.526
.526
.526
.526
.526
TAPPET LIFT @ TDC
106°
110°
.154
.158
.162
.167
.171
.176
.180
.185
.189
.194
.199
.203
.208
.137
.141
.145
.149
.153
.158
.162
.167
.171
.175
.180
.185
.189
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.68
1.73
1.78
.874
.875
.879
.882
.884
.884
.884
.884
.884
.884
.884
.884
.884
.900
.901
.905
.908
.910
.910
.910
.910
.910
.910
.910
.910
.910
.926
.927
.931
.935
.936
.936
.936
.936
.936
.936
.936
.936
.936
FDR FUEL & ALC INTAKE ROLLERS
The FDR designs are similar to the UDR designs but have more lift and faster ramps. These are designed for slightly lower RPM than the UDR series but should
be stable in most applications. For 2.124"+ journals and .800"+ roller wheels.
CAMSHAFT TYPE
FDR Fuel & ALC Int.
Rated Duration @
.020" Tappet Lift
Journal = R,M…
MI 32.4 (16.1/16.3)
LOBE #
RATED
DURATION
2082
2083
2084
2085
2086
2094
319
323
327
331
333
335
DURATION IN DEGREES
@ .050
@ .200
287
291
295
299
301
303
207
211
215
219
221
223
LOBE LIFT
.536
.536
.536
.536
.536
.536
TAPPET LIFT @ TDC
106°
110°
.187
.197
.206
.216
.221
.226
.169
.178
.187
.197
.202
.206
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.68
1.73
1.78
.900
.900
.900
.900
.900
.900
.927
.927
.927
.927
.927
.927
.954
.954
.954
.954
.954
.954
SOLID ROLLER
PXC PRO STOCK DRAG ROLLERS
SOLID ROLLER
SOLID ROLLER
FCX FUEL & ALC EXHAUST ROLLERS
The FCX designs are based on our popular XCX exhaust designs but have limited opening acceleration to accommodate the increased cylinder pressures seen
at exhaust opening in these applications. These will work on the intake side but are optimized for the exhaust. For 2.124"+ journals and .800"+ roller wheels.
CAMSHAFT TYPE
FCX Fuel Rollers
Rated Duration @
.020" Tappet Lift
Journal = B,R,M…
MI 38.5 (19.0/19.5)
LOBE #
RATED
DURATION
2171
2169
2162
2163
2164
2165
2166
2167
316
320
324
328
332
336
340
344
DURATION IN DEGREES
@ .050
@ .200
277
281
285
289
293
297
301
305
191
195
199
203
207
211
215
219
LOBE LIFT
.512
.512
.512
.512
.512
.512
.512
.512
TAPPET LIFT @ TDC
106°
110°
.154
.163
.171
.180
.189
.198
.206
.215
.138
.146
.154
.162
.171
.180
.188
.197
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.68
1.73
1.78
.860
.860
.860
.860
.860
.860
.860
.860
.886
.886
.886
.886
.886
.886
.886
.886
.911
.911
.911
.911
.911
.911
.911
.911
EF FUEL & ALC INTAKE ROLLERS
These profiles are Top Fuel designs for use in modern professional drag race classes.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
EF Fuel & ALC Int.
Rated Duration @
.020" Tappet Lift
Journal = B,R,M…
MI 34.2 (15.5/18.7)
2096
DURATION IN DEGREES
@ .050
@ .200
329
295
211
2097
329
295
2098
335
2099
335
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.68
1.73
1.78
106°
110°
.475
.198
.180
.798
.822
.846
212
.500
.200
.182
.840
.865
.890
301
217
.475
.210
.193
.798
.822
.846
301
218
.500
.213
.195
.840
.865
.890
FLI FUEL INTAKE ROLLERS
These profiles are Top Fuel designs for use in modern professional drag race classes.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
FLI Fuel Int.
Rated Duration @
.020" Tappet Lift
MI 33.2 (16.0/17.2)
2114
2115
2116
DURATION IN DEGREES
@ .050
@ .200
329
296
214
333
300
218
337
304
221
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.68
1.73
1.78
106°
110°
.513
.203
.185
.862
.887
.913
.515
.212
.194
.865
.891
.917
.517
.221
.202
.869
.894
.920
FLX FUEL EXHAUST ROLLERS
These profiles are Top Fuel designs for use in modern professional drag race classes.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
FLX Fuel Exh.
Rated Duration @
.020" Tappet Lift
Journal = B,R,M…
MI 35.0 (16.7/18.3)
2138
DURATION IN DEGREES
@ .050
@ .200
333
298
213
2139
337
302
2140
341
306
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.68
1.73
1.78
106°
110°
.510
.203
.186
.857
.882
.908
217
.512
.212
.195
.860
.886
.911
221
.514
.221
.203
.864
.889
.915
COMPCAMS.COM
CAM HELP® 1.800.999.0853
SOLID ROLLER
The FCX designs are based on our popular XCX exhaust designs but have limited opening acceleration to accommodate the increased cylinder pressures seen
at exhaust opening in these applications. These will work on the intake side but are optimized for the exhaust. For 2.124"+ journals and .800"+ roller wheels.
DURATION IN DEGREES
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.70
1.75
1.80
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
NFV Pro
Rated Duration @
.020" Tappet Lift
Journal = B,R,M…
MI 32.3 (15.8/16.5)
14154
14155
14156
14157
14158
332
333
334
335
336
300
301
302
303
304
217
218
219
220
221
.500
.501
.502
.503
.504
.213
.216
.218
.220
.222
.196
.198
.200
.203
.205
.850
.852
.853
.855
.857
.875
.877
.879
.880
.882
.900
.902
.904
.905
.907
NFV Pro Higher Lift
Rated Duration @
.020" Tappet Lift
Journal = R,M…
MI 32.3 (15.8/16.5)
14164
14165
14166
14167
14168
332
333
334
335
336
300
301
302
303
304
217
218
219
220
221
.514
.515
.516
.517
.518
.214
.216
.218
.221
.223
.197
.199
.201
.203
.205
.874
.876
.877
.879
.881
.900
.901
.903
.905
.907
.925
.927
.929
.931
.932
LOBE LIFT
CHRYSLER SPECIAL RACE ROLLERS
These designs are for Chryslers only. The "Special Roller" offers a variety of lobes used primarily on 383-426W-426 Hemis and 440 motors in Super Street,
Super Stock, Pro Stock and Alcohol burning Hemis.
CAMSHAFT TYPE
Chrysler Specials
Rated Duration @
.020" Tappet Lift
Journal = S,B,R,M…
MI 38.0 (19.0/19.0)
LOBE #
RATED
DURATION
1661
1625
1634
4248
4083
1642
1635
1491
1649
1650
1662
314-1
320-8
327-2
324-8
333-1
330-9
327-3
331-3
335-4
336-3
342-4
DURATION IN DEGREES
@ .050
@ .200
274
282
286
286
292
292
290
294
294
298
304
190
202
198
204
202
208
206
208
212
214
217
LOBE LIFT
.480
.500
.500
.500
.500
.500
.485
.485
.485
.500
.500
TAPPET LIFT @ TDC
106°
110°
.148
.179
.175
.186
.174
.193
.186
.191
.199
.204
.214
.132
.161
.159
.167
.168
.176
.169
.174
.183
.186
.197
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
.720
.750
.750
.750
.750
.750
.728
.728
.728
.750
.750
.768
.800
.800
.800
.800
.800
.776
.776
.776
.800
.800
.816
.850
.850
.850
.850
.850
.825
.825
.825
.850
.850
SOLID ROLLER
NFV TOP FUEL PRO DRAG ROLLERS (2012/2013)
OVERHEAD CAM
OVERHEAD CAM PIVOTING FOLLOWER
FORD MODULAR XTREME ENERGY™ 4.6 & 5.4L − SOHC OR DOHC
These profiles are developed for use in Ford Modular engines. The .550" versions are more aggressive off the seat and have more area. The .500" lift versions
will work in ‘98 and earlier SOHC engines without cylinder head modifications. They also work very well in DOCH applications that have been modified to accept
.500" valve lift. The .425" versions are best suited DOHC applications with ‘99 or later PI cylinder heads and can be used with stock valve train. Valve durations
and lift given for stock valve, lifter and rocker arm geometry.
CAMSHAFT TYPE
LOBE #
RATED DURATION
XE F4.6
Rated Duration @
.006" Valve Lift
Valve Lift Given
w/ Stock Geometry
9240
9241
9242
9243
9244
9245
9320
9321
9322
9323
9324
9325
9341
9342
9343
9344
9345
9346
9254
9256
9257
9258
9259
9260
9266
9267
9268
9269
9270
9271
9272
9273
254
258
262
266
270
274
256
260
264
268
272
276
258
262
266
270
274
278
254
262
268
270
274
278
262
266
270
274
278
282
286
290
DURATION IN DEGREES
@ .050
@ .200
218
222
226
230
234
238
220
224
228
232
236
240
222
226
230
234
238
242
216
224
230
232
236
240
226
230
234
238
242
246
250
254
164
171
177
179
182
186
165
168
172
176
179
183
169
172
176
180
183
186
164
171
177
179
182
186
177
181
185
189
192
196
199
203
LOBE LIFT
VALVE LIFT
.236
.236
.236
.236
.236
.236
.250
.250
.250
.250
.250
.250
.263
.263
.263
.263
.263
.263
.274
.274
.274
.274
.274
.274
.300
.300
.300
.300
.300
.300
.300
.300
.425
.425
.425
.425
.425
.425
.450
.450
.450
.450
.450
.450
.475
.475
.475
.475
.475
.475
.500
.500
.500
.500
.500
.500
.550
.550
.550
.550
.550
.550
.550
.550
COMPCAMS.COM
CAM HELP® 1.800.999.0853
OVERHEAD CAM
CAMSHAFT TYPE
LOBE #
RATED DURATION
SE
Rated Duration @
.006" Valve Lift
9291
9292
9293
9294
9295
9296
9297
19307
19305
19291
19292
19306
19295
19296
19301
19297
19293
19294
9298
9299
19298
19299
19300
9300
9283
9284
9303
9301
9304
9302
9306
9307
9371
9373
9310
9311
9312
9313
9314
9315
19314
19315
268
276
282
288
294
296
300
273
286
290
294
299
260
268
272
276
290
294
298
308
260
268
276
268
270
272
274
278
284
288
292
294
298
302
286
288
290
292
296
300
296
300
DURATION IN DEGREES
@ .050
@ .200
235
243
249
255
261
263
267
239
253
257
261
265
227
235
239
243
257
261
265
275
227
235
243
235
237
239
241
245
251
255
259
261
265
269
253
255
257
259
263
267
263
267
178
185
191
198
204
206
210
183
196
200
205
209
170
178
182
186
201
205
209
219
172
180
188
182
285
187
189
192
198
202
206
208
212
216
201
203
205
207
211
215
212
215
LOBE LIFT
VALVE LIFT
.217
.217
.217
.217
.217
.217
.217
.225
.225
.225
.225
.225
.230
.230
.230
.230
.230
.230
.230
.230
.244
.244
.244
.262
.262
.262
.262
.262
.262
.262
.262
.262
.262
.262
.282
.282
.282
.282
.282
.282
.302
.302
.387
.387
.387
.387
.387
.387
.387
.402
.402
.402
.402
.402
.412
.412
.412
.412
.412
.412
.412
.412
.438
.438
.438
.472
.472
.472
.472
.472
.472
.472
.472
.472
.472
.472
.510
.510
.510
.510
.510
.510
.550
.550
OVERHEAD CAM PIVOTING FOLLOWER
MODULAR STOCKER
OVERHEAD CAM
OVERHEAD CAM PIVOTING FOLLOWER
MHS MODULAR STOCKER
DURATION IN DEGREES
@ .050
@ .200
CAMSHAFT TYPE
LOBE #
RATED DURATION
MHS
Rated Duration @
.006" Valve Lift
19235
290
248
19236
294
252
LOBE LIFT
VALVE LIFT
195
.276
.500
197
.276
.500
MH 2V & 4V MODULAR RACE
The MH Series designs are for Ford Modular 2V & 4V race type applications. These can be used either with a standard hydraulic lash adjuster or a solid adjuster
conversion. In solid applications, the recommended lash is .010" to .016" at the valve tip or .006" to .010" in between the cam and roller follower. These are
stable at higher engine speeds than the standard street lobe profiles but do not have long street style closing ramps for idle noise reduction. Cylinder head
modifications are highly recommended to take advantage of the additional lift.
DURATION IN DEGREES
@ .006
@ .050
@ .200
VALVE LIFT @ TDC
106°
110°
CAMSHAFT TYPE
LOBE #
GROSS
VALVE LIFT
XE F4.6
.940" BCR
Rated Duration @
.006" Valve Lift
19262
19263
19264
19265
19266
19267
19268
19269
19370
.585
.585
.585
.585
.585
.585
.585
.585
.585
278
282
286
290
294
298
302
306
314
236
240
244
248
252
256
260
264
272
183
187
191
195
199
203
207
211
218
.105
.117
.129
.142
.155
.168
.182
.195
.221
XE F4.6
.920" BCR
Rated Duration @
.006" Valve Lift
19272
19273
19274
19275
19276
19277
19278
19279
19280
19380
.625
.625
.625
.625
.625
.625
.625
.625
.625
.625
278
282
286
290
294
298
302
306
310
314
236
240
244
248
252
256
260
264
268
272
183
187
191
195
199
203
207
211
215
219
.105
.117
.129
.142
.155
.169
.183
.197
.210
.224
CHECKING DURATION
@ .050/.750 Wheel
LOBE LIFT
.083
.094
.105
.117
.129
.142
.155
.168
.194
218
222
226
230
234
238
242
246
254
.320
.320
.320
.320
.320
.320
.320
.320
.320
.083
.094
.105
.117
.129
.142
.156
.169
.183
.196
218
222
226
230
234
238
242
246
250
254
.341
.341
.341
.341
.341
.341
.341
.341
.341
.341
MS SERIES 2V & 4V MODULAR RACE
The MS series designs are for Ford Modular 2V & 4V race type applications. These are even one step smoother than the MH series for applications that regularly
exceed 8500 RPM.
CAMSHAFT TYPE
LOBE #
GROSS
VALVE LIFT
MS XE F4.6
.930" BCR
.006" Valve Lift
Rated Duration @
19341
19342
19343
19344
19345
19334
19346
.600
.600
.600
.600
.600
.600
.600
DURATION IN DEGREES
@ .006
@ .050
@ .200
292
294
296
298
300
302
304
248
250
252
254
256
258
260
193
195
197
199
201
203
205
VALVE LIFT @ TDC
106°
110°
.139
.145
.151
.158
.165
.171
.178
.115
.121
.127
.133
.139
.145
.152
CHECKING DURATION
@ .050/.750 Wheel
LOBE LIFT
229
231
233
235
237
239
241
.328
.328
.328
.328
.328
.328
.328
COMPCAMS.COM
CAM HELP® 1.800.999.0853
OVERHEAD CAM
These profiles are developed for use in 3V Ford Modular engines. Note that the effective rocker ratio is much higher in this application than in the 2V or 4V. The
base circles are also smaller, hence the other profiles are not recommended in 3V applications. Also, these 3V intake profiles are quicker than the exhaust due
to the much lighter valves.
DURATION IN DEGREES
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
2.0
2.05
2.1
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .006
@ .200
XE 3V Mod Int.
Rated Duration @
.006" Valve Lift
9234
9236
9237
9238
9239
253
261
265
269
273
214
222
226
230
234
161
169
173
177
181
.480
.490
.500
.510
.520
.236
.241
.246
.251
.255
.472
.482
.492
.502
.510
.484
.494
.504
.515
.523
.496
.506
.517
.527
.536
XE 3V Mod Exh.
Rated Duration @
.006" Valve Lift
9246
9247
9248
9251
9252
270
274
278
282
286
227
231
235
239
243
169
173
177
181
185
.470
.475
.480
.485
.490
.234
.235
.237
.240
.243
.468
.470
.474
.480
.486
.480
.482
.486
.492
.498
.491
.494
.498
.504
.510
XE 3V LL Mod Int.
Rated Duration @
.006" Valve Lift
19202
19203
19204
19205
19207
19209
253
257
261
265
273
281
214
218
222
226
234
242
160
163
167
171
179
186
.450
.450
.450
.450
.450
.450
.222
.222
.222
.222
.222
.222
.444
.444
.444
.444
.444
.444
.455
.455
.455
.455
.455
.455
.466
.466
.466
.466
.466
.466
XE 3V LL Mod Exh.
Rated Duration @
.006" Valve Lift
19213
19214
19215
19216
270
274
278
282
227
231
235
239
169
173
176
180
.450
.450
.450
.450
.223
.223
.223
.223
.446
.446
.446
.446
.457
.457
.457
.457
.468
.468
.468
.468
XE 3V LL THMP-X
Rated Duration @
.006" Valve Lift
Faster Intake
19221
19223
19225
19194
298
306
314
264
246
254
262
228
186
193
201
176
.450
.450
.450
.500
.223
.223
.223
.246
.446
.446
.446
.492
.457
.457
.457
.504
.468
.468
.468
.517
XE 3V TVK Int.
Rated Duration @
.006" Valve Lift
19240
19242
19244
19246
256
264
272
280
221
229
237
245
171
179
187
195
.523
.535
.547
.559
.256
.262
.267
.273
.512
.524
.534
.546
.525
.537
.547
.560
.538
.550
.561
.573
XE 3V TVK Exh.
Rated Duration @
.006" Valve Lift
19251
19253
19254
19255
19256
19258
267
275
279
283
287
295
228
236
240
244
248
256
176
184
188
192
195
203
.538
.550
.555
.560
.560
.560
.265
.271
.273
.275
.275
.275
.530
.542
.546
.550
.550
.550
.543
.556
.560
.564
.564
.564
.557
.569
.573
.578
.578
.578
VALVE LIFT LOBE LIFT
OVERHEAD CAM PIVOTING FOLLOWER
FORD MODULAR XTREME ENERGY™ 4.6 & 5.4L − 3V
OVERHEAD CAM
OVERHEAD CAM PIVOTING FOLLOWER
FORD MODULAR RSS RACE − 3V
CAMSHAFT TYPE
LOBE #
RATED
DURATION
XE 3V RSS Int.
Solid
Rated Duration @
.010" Valve Lift
19400
XE 3V RSS Exh.
Solid
Rated Duration @
.010" Valve Lift
DURATION IN DEGREES
VALVE LIFT LOBE LIFT
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
2.0
2.05
2.1
@ .006
@ .200
298
260
204
.650
.316
.632
.648
.664
19402
306
268
212
.650
.316
.632
.648
.664
19404
314
276
220
.650
.316
.632
.648
.664
19409
317
272
213
.700
.340
.680
.697
.714
19411
325
280
221
.700
.340
.680
.697
.714
19413
333
288
229
.700
.340
.680
.697
.714
FORD COYOTE NSRI & NSRX STREET − 4V
DURATION IN DEGREES
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
2.0
2.05
2.1
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .006
@ .200
NSRI Int.
Rated Duration @
.004" Valve Lift
19554
19556
19558
267
275
283
220
228
236
167
175
183
.492
.492
.492
.244
.244
.244
.488
.488
.488
.500
.500
.500
.512
.512
.512
NSRX Exh.
Rated Duration @
.004" Valve Lift
19564
19565
19566
19567
19568
19569
276
280
284
288
292
296
223
227
231
235
239
243
167
171
175
179
183
186
.453
.453
.453
.453
.453
.453
.225
.225
.225
.225
.225
.225
.450
.450
.450
.450
.450
.450
.461
.461
.461
.461
.461
.461
.473
.473
.473
.473
.473
.473
Thumpr Exh.
Rated Duration @
.004" Valve Lift
19766
19767
19768
19769
307
311
315
319
234
238
242
246
175
179
183
187
.470
.470
.470
.470
.234
.234
.234
.234
.467
.467
.467
.467
.479
.479
.479
.479
.490
.490
.490
.490
VALVE LIFT LOBE LIFT
FORD COYOTE CY-R
DURATION IN DEGREES
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
2.0
2.05
2.1
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .006
@ .200
CY-R Int.
Rated Duration @
.004" Valve Lift
19820
19821
19822
19823
19824
19825
265
269
273
277
281
285
223
227
231
235
239
243
173
177
180
184
188
192
.516
.516
.516
.516
.516
.516
.2552
.2552
.2552
.2552
.2552
.2552
.510
.510
.510
.510
.510
.510
.523
.523
.523
.523
.523
.523
.536
.536
.536
.536
.536
.536
CY-R Exh.
Rated Duration @
.004" Valve Lift
19830
19831
19832
19833
19834
19835
19836
273
277
281
285
289
293
297
225
229
233
237
241
245
249
174
178
181
185
189
193
197
.514
.514
.514
.514
.514
.514
.514
.2542
.2542
.2542
.2542
.2542
.2542
.2542
.508
.508
.508
.508
.508
.508
.508
.521
.521
.521
.521
.521
.521
.521
.534
.534
.534
.534
.534
.534
.534
VALVE LIFT LOBE LIFT
COMPCAMS.COM
CAM HELP® 1.800.999.0853
OVERHEAD CAM
CAMSHAFT TYPE
LOBE #
RATED
DURATION
CRI Int.
Rated Duration @
.004" Valve Lift
19575
19576
19577
19578
19579
19580
19581
19582
19583
19584
19585
19586
19587
19588
DURATION IN DEGREES
VALVE LIFT LOBE LIFT
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
2.0
2.05
2.1
@ .006
@ .200
278
282
286
290
294
298
302
278
282
286
290
294
298
302
232
236
240
244
248
252
256
232
236
240
244
248
252
256
180
184
188
191
195
199
203
181
185
189
193
197
201
205
.512
.512
.512
.512
.512
.512
.512
.561
.565
.571
.576
.576
.576
.576
.2532
.2532
.2532
.2532
.2532
.2532
.2532
.2760
.2779
.2806
.2829
.2829
.2829
.2829
.506
.506
.506
.506
.506
.506
.506
.552
.556
.561
.566
.566
.566
.566
.519
.519
.519
.519
.519
.519
.519
.566
.570
.575
.580
.580
.580
.580
.532
.532
.532
.532
.532
.532
.532
.580
.584
.589
.594
.594
.594
.594
CRX Exh.
Rated Duration @
.004" Valve Lift
19592
19593
19594
19595
19596
19597
19598
19599
287
291
295
299
303
307
311
315
234
238
242
246
250
254
258
262
179
183
187
191
194
198
202
206
.502
.507
.512
.512
.512
.512
.512
.512
.2486
.2509
.2532
.2532
.2532
.2532
.2532
.2532
.497
.502
.506
.506
.506
.506
.506
.506
.510
.514
.519
.519
.519
.519
.519
.519
.522
.527
.532
.532
.532
.532
.532
.532
CRI Int. Stocker
Rated Duration @
.004" Valve Lift
19608
19609
19610
19611
290
294
298
302
244
248
252
256
190
194
198
202
.470
.470
.470
.470
.2335
.2335
.2335
.2335
.467
.467
.467
.467
.479
.479
.479
.479
.490
.490
.490
.490
CRX Exh. Stocker
Rated Duration @
.004" Valve Lift
19615
19616
19617
19618
299
303
307
311
246
250
254
258
190
194
198
202
.470
.470
.470
.470
.2335
.2335
.2335
.2335
.467
.467
.467
.467
.479
.479
.479
.479
.490
.490
.490
.490
FORD 2000-2300 OHC STREET
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .010
DURATION IN DEGREES
@ .050
LOBE LIFT
VALVE LIFT
Street Hydraulic
Valve Lift Given
w/ Stock Geometry
8022
8023
8024
8025
8026
240
252
260
268
280
200
210
218
226
236
.240
.246
.252
.264
.277
.400
.406
.420
.440
.460
Street
Solid
.010" Lash
8006
8007
8008
272
294
300
242
264
278
.282
.292
.350
.445
.463
.580
OVERHEAD CAM PIVOTING FOLLOWER
FORD COYOTE CRI & CRX RACE − 4V
OVERHEAD CAM
OVERHEAD CAM PIVOTING FOLLOWER
FORD 2000-2300 OHC RACE
These profiles are designed for use in Ford 2000-2300 OHC (Pinto) applications with factory style sliding followers. Cams must be nitrided after grinding and
will require extra time. Valve durations and lift given for stock valve, lifter and rocker geometry.
RATED DURATION
DURATION IN DEGREES
@ .050
LOBE LIFT
VALVE LIFT
8064
8066
8098
8096
8090
270
280
280
288
300
238
248
248
256
268
.280
.300
.270
.300
.345
.460
.500
.460
.500
.575
Race
.480" Lift Rule
Solid
.010" Lash
8312
8314
8316
288
292
296
260
264
268
.284
.284
.284
.480
.480
.480
Race
Base Solid
.010" Lash
8304
8306
8325
8327
294
300
314
320
272
278
282
288
.297
.297
.297
.297
.516
.516
.516
.516
CAMSHAFT TYPE
LOBE #
Race
Base Solid
.010" Lash
Valve Lift Given
w/ Stock Geometry
FORD 2000-2300 OHC RACE ROLLER FOLLOWER
These profiles are designed for use in Ford 2000-2300 OHC (Pinto) applications with roller followers.
CAMSHAFT TYPE
LOBE #
Intake-Exhaust
RATED DURATION
DURATION IN DEGREES
@ .050
LOBE LIFT
VALVE LIFT
Hi-Tech™ Roller Race
.010" Lash
8374-8375
8376-8377
8380-8381
8382-8383
8384-8385
8386-8387
279
283
291
295
299
303
246
250
258
262
266
270
.344
.344
.344
.344
.344
.344
.620
.620
.620
.620
.620
.620
.355
.360
.363
.363
.645
.655
.660
.660
Intake
RT Style Roller Race
.010" Lash
8360
8362
8364
8366
@ .050
286
290
294
298
258
262
266
270
COMPCAMS.COM
CAM HELP® 1.800.999.0853
OVERHEAD CAM
These profile are designed at the valve for a .500" base circle radius Ford 2300 with roller followers. Use an "I" suffix for intake profiles and an "E" suffix for
exhaust profiles.
VALVE LIFT
LOBE LIFT
LOBE CHECK
DURATION
@ .050
221
225
229
233
237
221
225
229
233
237
.658
.664
.670
.676
.682
.710
.710
.710
.710
.710
.360
.363
.366
.369
.372
.387
.387
.387
.387
.387
261
265
269
273
277
261
265
269
273
277
226
230
234
238
242
.745
.745
.745
.745
.745
.405
.405
.405
.405
.405
267
271
275
279
283
DURATION IN DEGREES
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .050
@ .200
2300 FP Roller
Race
Rated Duration @
.020" Valve Lift
8410
8411
8412
8413
8414
8420
8421
8422
8423
8424
313
317
321
325
329
313
317
321
325
329
284
288
292
296
300
284
288
292
296
300
2300 FPS Roller
Race
Rated Duration @
.020" Valve Lift
8552
8553
8554
8555
8556
322
326
330
334
338
291
295
299
303
307
OVERHEAD CAM PIVOTING FOLLOWER
FORD 2300 − FP ROLLER
OVERHEAD CAM
OVERHEAD CAM PIVOTING FOLLOWER
GM ECOTEC − XTREME ENERGY™ HYDRAULIC ROLLER OHC
These profiles are designed for use in GM ECOTEC applications. Valve durations and lift given for stock valve, lifter and rocker arm geometry.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
Int.
Street Hydraulic
Rated Duration @
.006" Valve Lift
8754
8756
8758
8760
8762
Exh.
Street Hydraulic
Rated Duration @
.006" Valve Lift
DURATION IN DEGREES
VALVE LIFT LOBE LIFT
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.685
1.7
1.715
@ .050
@ .200
240
246
252
258
264
198
204
210
216
222
141
146
151
157
164
.251
.251
.251
.260
.270
.423
.423
.423
.440
.456
.423
.423
.423
.438
.455
.427
.427
.427
.442
.459
.430
.430
.430
.446
.463
8755
8757
8759
8761
8763
244
250
256
262
268
200
206
212
218
224
140
145
150
156
163
.248
.248
.248
.258
.268
.419
.419
.419
.436
.453
.418
.418
.418
.435
.452
.422
.422
.422
.439
.456
.425
.425
.425
.442
.460
Race Int.
Rated Duration @
.006" Valve Lift
8766
8768
8770
8776
8778
8780
8786
8698
8699
8692
292
296
303
303
307
310
318
322
326
326
247
255
259
260
264
267
275
279
283
283
186
195
198
200
204
207
215
219
223
223
.294
.325
.300
.350
.350
.350
.355
.355
.355
.370
.499
.550
.511
.591
.591
.591
.600
.600
.600
.625
.495
.548
.506
.590
.590
.590
.598
.598
.598
.623
.500
.553
.510
.595
.595
.595
.604
.604
.604
.629
.504
.557
.515
.600
.600
.600
.609
.609
.609
.635
Race Exh.
Rated Duration @
.006" Valve Lift
8767
8696
8771
8777
8781
8791
8792
8793
294
301
306
310
314
320
324
328
249
255
261
264
268
276
280
284
187
194
199
203
208
215
219
222
.294
.325
.300
.330
.350
.355
.355
.355
.499
.550
.512
.565
.591
.600
.600
.600
.495
.548
.506
.556
.590
.598
.598
.598
.500
.553
.510
.561
.595
.604
.604
.604
.504
.557
.515
.566
.600
.609
.609
.609
COMPCAMS.COM
CAM HELP® 1.800.999.0853
OVERHEAD CAM
These profiles are designed for use in Mitsubishi 4G63 applications. Valve durations and lift given for stock valve, lifter and rocker arm geometry.
CAMSHAFT TYPE
LOBE #
RATED DURATION
DURATION IN DEGREES
@ .050
LOBE LIFT
VALVE LIFT
INTAKE/EXHAUST
Mitsubishi 4G63
Street Hydraulic
Rated Duration @
.004" Valve Lift
8735
8736
8737
8738
8739
8740
8741
8742
8745
8746
251
250
259
258
259
258
266
266
256
257
204
204
212
212
212
212
220
220
210
210
.237
.229
.239
.232
.239
.232
.242
.234
.255
.239
.407
.391
.411
.395
.411
.395
.415
.399
.434
.411
Int.
Exh.
Int.
Exh.
Int.
Exh.
Int.
Exh.
Int.
Exh.
NISSAN L16, 18, 20B
These profiles are designed for use in Nissan L16, 18, 20B applications. Valve durations and lift given for stock valve and rocker arm geometry.
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .010
DURATION IN DEGREES
@ .050
LOBE LIFT
VALVE LIFT
Street
8250
8255
8251
8252
8253
8254
240
252
260
268
280
292
194
204
214
222
236
246
.285
.293
.301
.308
.330
.344
.400
.410
.420
.430
.460
.480
Race
8260
8261
8262
294
300
306
258
264
270
.395
.400
.405
.573
.580
.587
TOYOTA 20R-22RE
These profiles are designed for use in Toyota 20R-22RE applications. Valve durations and lift given for stock valve and rocker arm geometry.
CAMSHAFT TYPE
LOBE #
INTAKE−EXHAUST
RATED DURATION
@ .010
DURATION IN DEGREES
@ .050
LOBE LIFT
VALVE LIFT
Street
8216-8217
8218-8219
8202-8203
8204-8205
8206-8207
247
255
263
271
279
206
214
222
230
238
.282
.288
.295
.301
.321
.419
.429
.440
.450
.484
Race
8232-8233
8234-8235
8236-8237
8240-8241
8242-8243
317
321
325
321
325
275
279
283
279
283
.308
.305
.305
.328
.328
.460
.457
.457
.505
.505
OVERHEAD CAM PIVOTING FOLLOWER
MITSUBISHI 4G63 − XTREME ENERGY™ HYDRAULIC ROLLER OHC
OVERHEAD CAM
OVERHEAD CAM PIVOTING FOLLOWER
SOH OHC ROLLERS FOR FORD 427 SOHC
CAMSHAFT TYPE
LOBE #
RATED
DURATION
427 SOHC Lobes
Std. Lift − Street
Rated Duration @
.015" Tappet Lift
8430
8432
8434
8436
427 SOHC Lobes
High Lift − Race
Rated Duration @
.015" Tappet Lift
DURATION IN DEGREES
LOBE LIFT
TAPPET LIFT
@ TDC
106°
110°
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.685
1.7
1.715
@ .050
@ .200
278
286
294
302
244
252
260
268
178
185
193
200
.464
.470
.476
.482
.111
.130
.150
.170
.092
.111
.130
.150
.580
.588
.595
.603
.592
.599
.607
.615
.603
.611
.619
.627
8440
310
276
211
.538
.196
.174
.673
.686
.699
8442
318
284
218
.542
.216
.194
.678
.691
.705
8444
326
292
226
.546
.234
.213
.683
.696
.710
VM OHC ROLLERS FOR FORD 427 SOHC
The VM series Ford 427 SOHC profiles are designed first "at the valve" with optimized motion for the Right Intake and Left Exhaust "A" pairs and also the left
intake and right exhaust "B" pairs. This valve motion is then converted back to a lobe checking file for manufacturing and inspection. By "reverse engineering"
the camshaft backwards from the desired valve motion, more area under the curve along with better stability and improved motion symmetry from intake to
exhaust and from bank to bank is achieved. Use an "RI" prefix for the right intake, an "RE" perfect for the right exhaust, an "LI" prefix for the left intake and an
"LE" prefix for the left exhaust all before the desire ID number when ordering individual cams.
DURATION IN
DEGREES
@ .050
@ .200
DURATION
VALVE LIFT @ TDC CHECK
TAPPET
106°
110°
@ .050
CAMSHAFT TYPE
LOBE #
RATED
DURATION
Ford 427 SOHC
Std. Lift − Street
Rated Duration @
.020" Valve Lift
8560
8564
8566
8568
288
288
296
304
264
264
272
280
207
208
216
224
.543
.592
.598
.604
.184
.188
.214
.240
.160
.162
.188
.214
Ford 427 SOHC
High Lift − Race
Rated Duration @
.020" Valve Lift
8590
8592
8594
8596
8598
284
292
300
308
316
261
269
277
285
293
206
214
222
230
238
.696
.702
.708
.714
.720
.180
.210
.240
.270
.300
.150
.180
.210
.240
.270
VALVE
LIFT
CHECK LIFT
TAPPET
LIFT W/ FIXED
RATIO
1.27
252
252
260
268
.431
.472
.477
.482
.547
.599
.606
.612
249
257
265
273
281
.559
.564
.569
.574
.579
.710
.716
.723
.729
.735
COMPCAMS.COM
CAM HELP® 1.800.999.0853
OVERHEAD CAM
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .010"
VW or Direct
1" Tappet
Direct − Bucket
6800
6801
6802
6803
6804
6805
6806
6807
6808
216
226
236
246
256
266
276
286
296
DURATION IN DEGREES
@ .050"
@ .200"
180
190
200
210
220
230
240
250
260
95
109
122
134
145
153
162
169
179
LOBE LIFT
MINIMUM
TAPPET O.D.
MINIMUM BCR
.260
.280
.300
.320
.340
.360
.380
.400
.420
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
.640
.620
.600
.580
.560
.540
.520
.500
.480
LOBE LIFT
MINIMUM
TAPPET O.D.
MINIMUM BCR
.365
.360
.320
.360
.360
1.080
1.020
.900
1.000
.980
.550
.550
.500
.500
.500
LOBE LIFT
MINIMUM
TAPPET O.D.
MINIMUM BCR
.410
.420
.430
1.100
1.100
1.100
.650
.650
.650
LOBE LIFT
MINIMUM
TAPPET O.D.
MINIMUM BCR
OHC − MULTIPURPOSE BUCKET
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .010"
OHC
Direct − Bucket
9048
9042
9045
9044
9046
248
256
274
264
273
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .010"
Quad 4
Direct − Bucket
9013
9014
9015
260
266
272
DURATION IN DEGREES
@ .050"
@ .200"
215
222
228
230
238
146
150
144
158
162
QUAD 4 − BUCKET
DURATION IN DEGREES
@ .050"
@ .200"
226
232
238
160
166
172
OHZ − STREET/STRIP BUCKET
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .006"
DURATION IN DEGREES
@ .050"
@ .200"
OHZ
Direct − Bucket
.400 Lift
9090
9091
9092
9093
9086
9087
258
262
268
274
280
286
214
218
224
230
236
242
149
153
158
163
168
173
.400
.400
.400
.400
.400
.400
1.180
1.180
1.180
1.180
1.180
1.180
.680
.660
.640
.620
.600
.600
OHZ
Direct − Bucket
.320-.380 Lift
9094
9095
9109
9096
9108
264
272
280
280
284
220
228
235
236
239
153
160
150
166
163
.380
.380
.320
.380
.360
1.180
1.180
1.025
1.180
1.025
.650
.630
.500
.610
.500
OVERHEAD CAM DIRECT ACTING
VW OR DIRECT 1" TAPPET
OVERHEAD CAM
OVERHEAD CAM DIRECT ACTING
OHRX − HIGH RPM BUCKET
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .006"
DURATION IN DEGREES
@ .050"
@ .200"
OHRX Int.
Direct − Bucket
9072
9073
9074
9102
9103
9104
9105
9122
9124
294
300
306
279
285
283
289
294
306
260
266
272
245
251
249
255
260
272
OHRX Exh.
9141
336
274
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .006"
OHRXV
Direct − Bucket
9116
9117
9118
306
310
314
LOBE LIFT
MINIMUM
TAPPET O.D.
MINIMUM BCR
199
204
210
186
192
192
198
198
210
.480
.490
.500
.510
.510
.550
.550
.500
.530
1.200
1.200
1.200
1.325
1.325
1.458
1.458
1.200
1.200
.530
.530
.530
.650
.650
.690
.690
.580
.580
208
.490
1.200
.530
LOBE LIFT
MINIMUM
TAPPET O.D.
MINIMUM BCR
.553
.560
.565
1.200
1.200
1.200
.530
.530
.530
LOBE LIFT
MINIMUM
TAPPET O.D.
MINIMUM BCR
.495
.500
.505
.510
1.200
1.200
1.200
1.200
.530
.530
.530
.530
LOBE LIFT
MINIMUM
TAPPET O.D.
MINIMUM BCR
.475
.490
.505
1.180
1.180
1.180
.530
.530
.530
LOBE LIFT
MINIMUM
TAPPET O.D.
MINIMUM BCR
.440
.452
.464
1.150
1.150
1.150
.500
.500
.500
OHRXV − HIGH LIFT
DURATION IN DEGREES
@ .050"
@ .200"
273
277
281
212
216
220
XCOH − EXHAUST HIGH LIFT
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .006"
XCOH
Direct − Bucket
9132
9133
9134
9135
317
321
325
329
DURATION IN DEGREES
@ .050"
@ .200"
270
274
278
282
205
209
213
217
OHRXA − STREET INTAKE
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .006"
OHRXA Int.
Direct − Bucket
9126
9127
9128
285
291
297
DURATION IN DEGREES
@ .050"
@ .200"
251
257
263
187
194
200
OHRXA − STREET EXHAUST
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .006"
OHRXA Exh.
Direct − Bucket
9146
9147
9148
295
301
307
DURATION IN DEGREES
@ .050"
@ .200"
246
252
258
180
186
193
COMPCAMS.COM
CAM HELP® 1.800.999.0853
OVERHEAD CAM
Fast Intake OHC Lift Rule & RPM Limited − 33mm Bucket, 0.738" BCR. Can be used with Hydraulic Bucket and zero lash or with Solid Bucket and .005" to
.010" lash.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .006
@ .010
@ .020
@ .050
@ .200
PCI 33 Int.
Rated Duration @
.006" Tappet Lift
19701
19702
19703
293
297
301
282
286
290
267
271
275
248
252
256
192
196
200
DURATION IN DEGREES
LOBE LIFT
.498
.498
.498
TAPPET LIFT @ TDC
106°
110°
114°
.144
.155
.166
.122
.133
.144
.100
.111
.122
PCX EXHAUST − LIMITED RPM OHC 33MM BUCKET
OVERHEAD CAM DIRECT ACTING
PCI INTAKE − LIMITED RPM OHC 33MM BUCKET
Exhaust OHC Lift Rule & RPM Limited − 33mm Bucket, 0.738" BCR. Can be used with Hydraulic Bucket and zero lash or with Solid Bucket and .005" to .010" lash.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
@ .006
@ .010
@ .020
@ .050
@ .200
PCX 33 Exh.
Rated Duration @
.006" Tappet Lift
19704
19705
19706
19707
19708
290
294
298
302
306
280
284
288
292
296
264
268
272
276
280
242
246
250
254
258
185
189
193
197
201
DURATION IN DEGREES
LOBE LIFT
.498
.498
.498
.498
.498
TAPPET LIFT @ TDC
106°
110°
114°
.126
.137
.148
.159
.170
.104
.115
.126
.137
.148
.083
.093
.104
.115
.126
PDI INTAKE − LIMITED RPM OHC 33MM BUCKET
Fast Intake OHC Lift Rule & RPM Limited − 31.5mm Bucket, 0.748" BCR. Can be used with Hydraulic Bucket and zero lash or with Solid Bucket and .005"
to .010" lash.
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .006
@ .010
@ .020
@ .050
@ .200
PDI 31.5 Int.
Rated Duration @
.006" Tappet Lift
19712
19713
19714
284
288
292
274
278
282
261
265
269
243
247
251
186
190
194
DURATION IN DEGREES
LOBE LIFT
.497
.497
.497
TAPPET LIFT @ TDC
106°
110°
.129
.140
.150
.108
.118
.129
PDX EXHAUST − LIMITED RPM OHC 31.5MM BUCKET
Exhaust OHC Lift Rule & RPM Limited − 31.5mm Bucket, 0.748" BCR. Can be used with Hydraulic Bucket and zero lash or with Solid Bucket and .005" to
.010" lash.
CAMSHAFT TYPE
LOBE #
RATED DURATION
@ .006
@ .010
@ .020
@ .050
@ .200
PDX 31.5 Exh.
Rated Duration @
.006" Tappet Lift
19717
19718
19719
293
297
301
279
283
287
263
267
271
244
248
252
187
191
195
DURATION IN DEGREES
LOBE LIFT
.496
.496
.496
TAPPET LIFT @ TDC
106°
110°
.132
.142
.153
.110
.121
.132
OVERHEAD CAM
OVERHEAD CAM DIRECT ACTING
OVH INTAKE 38 TO 40MM BUCKET
These are based on the OHRX Series and maximized for .500" + BCR and 38mm or larger buckets.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
OVH 38+ Int.
Rated Duration @
.020" Tappet Lift
9418
9419
9420
296
300
304
DURATION IN DEGREES
@ .050
@ .200
276
280
284
223
227
231
TAPPET LIFT @ TDC
LOBE LIFT
.645
.660
.675
106°
110°
114°
.238
.251
.264
.212
.225
.238
.187
.200
.212
XCO EXHAUST 35-40MM BUCKET
These are based on an exhaust series that is similar to the OVH intakes but with softer ramps. Will work with 35mm or larger buckets.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
XCO 35+ Exh.
Rated Duration @
.020" Tappet Lift
19425
9423
9424
9425
290
304
308
312
DURATION IN DEGREES
@ .050
@ .200
262
276
280
284
201
216
220
224
TAPPET LIFT @ TDC
LOBE LIFT
.550
.600
.610
.620
106°
110°
114°
.169
.211
.223
.236
.146
.188
.200
.212
.124
.164
.176
.188
XCO INTAKE 38-40MM BUCKET
These lobes are similar to the XCO 35 Series but optimized for 38mm or larger buckets and have more lift.
CAMSHAFT TYPE
LOBE #
RATED
DURATION
XCO 38+ Int.
Rated Duration @
.020" Tappet Lift
9444
9445
9446
310
314
318
DURATION IN DEGREES
@ .050
@ .200
282
286
290
224
228
232
TAPPET LIFT @ TDC
LOBE LIFT
.640
.650
.660
106°
110°
114°
.238
.251
.264
.212
.225
.238
.187
.200
.212
THUMPR™ FLATHEAD FORD − DIRECT SOLID 1" TAPPET (CCW ROTATION)
CAMSHAFT TYPE
LOBE #
RATED
DURATION
Intake
1" Tappet
Direct
19520
19522
19524
Exhaust
1" Tappet
Direct
19531
19533
19535
Can also be used in VW applications.
DURATION IN DEGREES
LOBE LIFT
MINIMUM
TAPPET O.D.
MINIMUM BCR
@ .050
@ .200
267
275
283
227
235
243
160
169
177
.354
.368
.382
1.000
1.000
1.000
.540
.526
.512
299
307
315
241
249
257
151
160
168
.350
.364
.378
1.000
1.000
1.000
.544
.530
.516
COMPCAMS.COM
CAM HELP® 1.800.999.0853
OVERHEAD CAM
The FC Solid designs can be used in many smaller solid lifter applications including OHV, flathead direct and OHC direct applications. Requires a minimum .780"
tappet face diameter.
CAMSHAFT TYPE
FC
Rated Duration @
.020" Tappet Lift
.780" Min. Dia.
.012" Lash
LOBE #
RATED
DURATION
@ .050
@ .200
106°
110°
6703
6704
6705
6706
6707
6708
6709
6710
6711
6712
6713
6714
6715
FC244-1
FC248-1
FC252-1
FC258-1
FC262-1
FC266-1
FC270-1
FC274-1
FC278-1
FC282-1
FC286-1
FC290-1
FC294-1
212
216
220
225
229
232
236
240
244
248
252
256
260
102
110
118
122
127
130
135
139
143
146
152
154
160
.250
.260
.270
.280
.285
.290
.300
.300
.310
.310
.320
.320
.330
.050
.056
.061
.067
.073
.079
.084
.091
.097
.102
.112
.116
.124
.040
.045
.050
.056
.062
.067
.073
.079
.085
.090
.099
.103
.112
.375
.390
.405
.420
.428
.435
.450
.450
.465
.465
.480
.480
.495
.400
.416
.432
.448
.456
.464
.480
.480
.496
.496
.512
.512
.528
.425
.442
.459
.476
.485
.493
.510
.510
.527
.527
.544
.544
.561
6716
6717
6718
6730
6720
6724
FC298-1
FC302-1
FC306-1
FC314-1
FC314-2
FC324-2
264
268
272
280
280
290
165
169
173
163
180
188
.330
.340
.340
.300
.350
.350
.131
.136
.144
.142
.157
.171
.118
.123
.131
.131
.144
.159
.495
.510
.510
.450
.525
.525
.528
.544
.544
.480
.560
.560
.561
.578
.578
.510
.595
.595
DURATION IN DEGREES
LOBE LIFT
TAPPET LIFT @ TDC
THEORETICAL VALVE LIFT @ "0" LASH
ROCKER ARM RATIO
1.5
1.6
1.7
OVERHEAD CAM DIRECT ACTING
FC SOLIDS
LOBE INDEX
LOBE INDEX
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
1027
1028
1030
1046
1108
1110
1111
1112
1152
1176
1180
1181
1183
1185
1186
1187
1188
1189
1227
1239
1240
1245
1260
1261
1263
1268
1269
1271
1272
1273
1278
1285
1286
1287
1288
1289
1291
1293
1295
1301
1302
1306
1309
1320
1372
1373
1374
1375
101
101
101
101
106
106
106
106
104
101
101
107
107
107
101
107
101
107
106
106
101
106
100
104
104
100
104
100
100
104
100
104
100
104
100
104
104
104
100
101
101
104
101
104
109
109
109
109
1376
1377
1382
1383
1384
1385
1386
1388
1392
1393
1394
1395
1398
1399
1400
1402
1403
1416
1417
1418
1419
1427
1429
1460
1461
1462
1464
1465
1466
1469
1473
1474
1476
1477
1479
1480
1481
1484
1485
1486
1487
1489
1490
1491
1494
1495
1496
1498
109
109
109
109
109
109
109
109
68
71
68
71
109
109
109
109
109
88
88
88
88
88
88
68
69
68
68
68
68
68
68
66
66
83
68
71
83
104
104
68
104
104
101
133
104
104
66
66
1514
1515
1519
1520
1521
1522
1523
1524
1528
1530
1532
1534
1536
1538
1540
1542
1562
1563
1564
1565
1568
1569
1570
1571
1572
1577
1578
1579
1580
1581
1582
1585
1609
1611
1612
1613
1617
1619
1620
1625
1628
1630
1634
1635
1639
1642
1649
1650
82
82
91
91
91
91
91
91
90
90
90
90
90
90
90
90
122
122
122
122
112
122
112
122
112
108
108
108
108
108
108
108
68
68
68
68
68
68
68
133
68
68
133
133
68
133
133
133
1658
1659
1660
1661
1662
1677
1680
1681
1682
1683
1684
1685
1686
1687
1688
1695
1699
1718
1719
1722
1723
1724
1726
1727
1728
1729
1730
1734
1735
1736
1737
1739
1742
1743
1744
1745
1746
1747
1748
1749
1751
1752
1753
1758
1759
1760
1761
1763
68
68
71
133
133
68
106
106
106
106
106
106
106
106
106
121
106
102
102
103
121
103
103
103
103
103
103
121
121
103
103
103
103
103
103
103
103
103
103
103
105
105
105
105
105
105
105
105
1770
1771
1772
1773
1775
1777
1785
1789
1790
1792
1794
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1819
1820
1823
1825
1826
1827
1828
1829
1831
1832
1833
1834
1835
1836
1837
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
102
102
105
105
122
105
105
122
122
122
122
102
102
102
102
102
102
102
102
102
102
102
102
102
102
122
122
102
102
102
102
102
102
122
122
122
122
122
102
102
102
102
102
102
102
102
122
122
COMPCAMS.COM
CAM HELP® 1.800.999.0853
LOBE INDEX
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
1849
1850
1858
1859
1860
1861
1862
1864
1866
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1884
1886
1893
1901
1903
1912
1914
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1936
1937
1939
1943
1945
1960
1962
1964
122
105
122
122
105
105
105
105
105
105
105
105
105
105
105
105
105
105
105
105
105
106
106
106
105
108
108
108
108
108
108
108
108
108
108
108
108
108
108
108
108
108
110
110
110
105
105
105
1966
1968
1970
1975
1976
1977
1978
1979
1980
1982
1986
1987
1988
1989
1990
1991
1992
1993
1995
1996
1997
1998
1999
2037
2039
2041
2042
2043
2044
2045
2047
2048
2049
2050
2051
2054
2055
2057
2058
2067
2068
2069
2073
2074
2075
2076
2077
2078
105
105
105
110
110
110
110
110
110
110
110
110
110
110
110
110
110
110
121
121
121
121
121
112
112
112
112
112
112
112
131
131
131
131
131
106
123
112
112
131
131
131
131
131
131
131
131
123
2079
2082
2083
2084
2085
2086
2094
2095
2096
2097
2098
2099
2114
2115
2116
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2138
2139
2140
2162
2163
2164
2165
2166
2167
2169
2171
2182
2184
2195
2196
2198
2199
2201
2202
2203
123
131
131
131
131
131
131
112
132
132
132
132
132
132
132
34
34
34
34
34
34
34
34
34
34
34
34
34
132
132
132
132
132
132
132
132
132
132
132
112
112
92
92
92
92
93
93
93
2208
2209
2210
2214
2215
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2265
2267
2273
2274
2275
84
84
84
92
92
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
92
92
92
92
92
92
92
92
92
92
93
93
93
93
93
93
93
93
93
93
93
93
92
92
92
92
92
2276
2277
2278
2279
2280
2281
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2314
2315
2318
2369
2380
2381
2383
2384
2385
2387
2390
2391
2392
2393
2399
2419
2420
2430
2486
2488
2489
2490
2492
2494
2507
2508
2509
2510
2511
2512
2513
2514
92
92
92
92
92
92
112
112
112
112
112
112
112
112
73
112
73
73
73
128
92
92
128
128
113
111
111
111
111
111
111
113
113
113
76
76
76
76
76
76
82
82
82
82
82
82
82
82
LOBE INDEX
LOBE #
LOBE INDEX
CAM SPECS
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2531
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2551
2555
2557
2559
2560
2570
2571
2577
2578
2579
2580
2581
2582
2583
2586
2587
2588
2589
2590
2591
2682
82
82
82
82
82
82
97
97
97
97
97
97
97
97
97
97
86
86
86
86
86
86
86
86
86
86
97
97
97
97
97
97
93
93
123
123
123
123
123
93
93
113
113
113
113
93
93
93
2683
2688
2689
2690
2691
2692
2693
2694
2724
2725
2726
2727
2728
2730
2731
2735
2881
2882
2885
2906
2907
2908
2909
2950
2952
2953
2954
2958
2962
2963
2964
2965
2978
2979
2980
2981
2982
2983
2984
2985
2989
3002
3003
3004
3005
3006
3007
3008
93
88
88
88
88
88
88
88
121
121
121
121
121
93
93
73
80
80
80
88
88
88
88
79
79
79
79
79
80
80
80
80
79
79
79
79
79
79
79
79
79
23
23
23
23
23
23
23
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3024
3026
3028
3030
3031
3033
3034
3035
3036
3037
3038
3039
3040
3041
3043
3045
3047
3050
3051
3052
3053
3056
3058
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
23
23
23
23
23
23
23
23
23
23
23
23
23
20
20
20
20
23
20
23
23
24
24
24
24
24
24
24
20
20
20
18
18
18
18
20
20
18
18
18
18
18
18
18
18
18
18
18
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3122
3150
3151
3152
3160
3161
3162
3163
3164
3168
3170
3171
3188
3190
3192
3194
3196
3207
3282
3283
3284
3285
3286
3287
3288
3289
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
18
21
21
21
21
21
70
38
38
38
38
39
39
39
39
38
39
38
38
38
21
21
21
22
21
21
22
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3322
3323
3324
3326
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3354
3355
3356
3657
3658
3659
3660
3661
3662
3663
22
22
22
21
21
21
21
21
21
21
21
21
21
21
21
22
22
39
39
39
39
39
39
38
38
38
38
38
21
21
21
21
21
21
21
22
22
22
27
27
27
30
30
29
30
30
30
30
COMPCAMS.COM
CAM HELP® 1.800.999.0853
COMPONENTS
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3750
3751
3752
3753
3754
3755
30
30
30
30
30
30
30
30
30
30
30
30
30
29
29
29
29
29
29
29
29
29
29
29
29
29
30
30
30
30
30
31
31
31
31
31
31
31
31
31
31
29
29
29
29
29
29
29
3756
3757
3766
3767
3809
3810
3816
3817
3818
3819
3822
3823
3824
3825
3826
3827
3832
3833
3834
3835
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4013
4015
4016
4017
4018
4019
4020
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
29
29
29
29
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
43
68
70
66
69
70
69
70
69
70
70
70
70
70
70
70
69
70
70
69
70
68
70
69
70
69
70
70
70
4034
4035
4045
4046
4047
4049
4050
4051
4052
4053
4055
4056
4057
4058
4059
4062
4063
4064
4065
4066
4067
4068
4070
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4085
4087
4091
4107
4118
4119
4121
4123
4124
4126
4127
4128
4129
4130
4131
68
68
69
69
69
69
104
104
104
104
104
104
104
69
68
68
101
104
71
68
104
101
71
104
71
70
70
70
70
70
70
70
133
101
68
101
101
101
70
75
75
75
75
75
75
75
75
75
4132
4133
4134
4135
4136
4137
4138
4139
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4160
4162
4163
4164
4165
4166
4167
4168
4176
4178
4180
4181
4182
4183
4184
4185
4186
4196
4198
4199
4205
4206
4207
4208
4209
4210
4211
4213
4214
75
75
75
75
75
75
75
75
72
72
72
72
72
72
72
72
72
72
72
72
72
72
72
72
72
72
72
81
81
81
81
81
81
81
81
81
81
81
81
83
83
83
83
83
69
69
83
83
4216
4217
4220
4221
4240
4241
4242
4243
4244
4245
4247
4248
4252
4253
4254
4260
4261
4262
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4276
4277
4278
4279
4283
4284
4285
4286
4287
4293
4294
4295
4296
4301
4302
4303
4304
4305
4308
83
83
66
66
83
83
68
83
68
83
104
133
83
83
83
73
73
73
73
73
73
73
73
73
73
73
73
73
73
73
73
73
73
73
73
73
73
73
73
73
73
73
77
77
77
77
77
77
LOBE INDEX
LOBE #
LOBE INDEX
CAM SPECS
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4321
4327
4328
4329
4340
4341
4345
4346
4347
4348
4349
4358
4359
4361
4362
4363
4364
4365
4366
4367
4368
4370
4371
4372
4373
4374
4375
4376
4377
4378
4382
4383
4384
4385
4386
4387
4388
77
77
77
77
77
77
77
77
77
77
77
79
79
79
79
77
77
76
76
76
76
76
81
81
81
81
81
81
81
81
81
81
81
81
81
81
81
81
81
81
81
76
76
76
76
76
76
76
4389
4390
4391
4402
4404
4405
4406
4407
4408
4409
4416
4418
4421
4422
4423
4424
4427
4428
4429
4430
4431
4432
4433
4436
4438
4445
4447
4449
4451
4480
4482
4483
4484
4485
4486
4572
4573
4574
4575
4576
4600
4601
4609
4610
4611
4612
4613
4614
76
76
76
79
79
79
79
79
79
79
79
79
88
88
88
88
77
77
77
77
77
77
77
77
77
77
77
77
77
71
71
71
71
71
71
87
87
87
87
87
83
83
87
87
87
87
87
87
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4627
4628
4639
4640
4641
4642
4643
4682
4683
4684
4685
4686
4687
4784
4785
4788
4789
4793
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4826
4827
4830
4831
4837
4838
4839
4840
87
87
87
87
87
87
87
87
87
87
87
87
87
87
87
87
87
87
76
76
76
76
76
76
82
82
82
82
82
78
78
78
78
78
78
78
78
78
78
78
78
78
82
82
80
80
80
80
4841
4842
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4884
4886
4888
4894
4896
4898
4904
4908
4910
4911
4912
4913
4915
4916
4917
4918
5000
5002
5006
5020
5022
5024
5031
5033
80
80
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
66
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
67
12
12
12
12
12
12
13
13
5035
5038
5039
5040
5042
5044
5055
5057
5059
5066
5067
5068
5069
5070
5071
5082
5083
5084
5085
5086
5087
5088
5089
5090
5101
5103
5105
5107
5109
5127
5128
5128
5129
5130
5135
5146
5163
5166
5190
5195
5196
5197
5198
5199
5200
5201
5201
5202
13
12
12
12
12
12
13
13
13
13
13
13
13
13
13
15
15
15
15
15
15
15
15
15
15
15
15
15
15
12
12
12
12
12
12
12
12
12
44
13
13
13
13
13
11
11
14
11
COMPCAMS.COM
CAM HELP® 1.800.999.0853
COMPONENTS
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
5202
5203
5203
5204
5205
5205
5206
5207
5207
5208
5208
5209
5209
5210
5210
5211
5212
5212
5213
5214
5214
5215
5216
5216
5217
5221
5222
5223
5224
5225
5226
5229
5230
5231
5232
5232
5233
5234
5238
5239
5240
5241
5310
5311
5312
5315
5326
5327
14
11
14
11
11
14
11
11
14
11
14
11
14
11
14
11
11
14
11
11
14
11
11
14
11
13
11
11
11
11
11
11
14
14
11
14
14
14
14
11
11
11
12
12
12
12
12
12
5414
5418
5419
5430
5431
5432
5433
5435
5437
5438
5439
5440
5441
5442
5443
5444
5445
5446
5447
5448
5449
5517
5518
5519
5520
5522
5524
5531
5533
5535
5537
5538
5538
5540
5540
5544
5544
5546
5546
5547
5548
5549
5550
5551
5553
5556
5643
5644
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
50
50
50
12
12
12
13
13
13
51
17
53
17
53
17
53
17
53
50
51
51
50
51
50
50
50
51
5645
5646
5647
5649
5650
5651
5652
5653
5654
5655
5656
5657
5658
5659
5660
5661
5662
5663
5664
5665
5666
5667
5668
5669
5670
5676
5677
5678
5679
5680
5681
5682
5683
5684
5685
5686
5687
5692
5694
5695
5696
5697
5698
5704
5708
5713
5714
5715
50
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
51
52
52
51
51
51
52
52
52
52
52
52
51
51
51
50
50
51
51
50
50
52
52
52
5718
5719
5720
5738
5744
5746
5777
5778
5779
5783
5784
5800
5801
5802
5813
5814
5820
5822
5824
5831
5833
5835
5840
5840
5846
5846
5852
5854
5854
5862
5862
5892
5893
5900
5901
5902
5903
5904
5960
5961
5962
5964
5965
5966
5980
5981
5984
5985
50
50
50
52
50
50
51
51
51
52
52
51
51
51
52
52
13
13
13
13
13
13
17
53
17
53
16
17
53
17
53
51
52
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
5986
6000
6001
6002
6003
6004
6005
6006
6007
6009
6010
6011
6012
6013
6014
6015
6016
6017
6018
6019
6027
6028
6029
6030
6031
6032
6033
6034
6035
6036
6038
6052
6053
6054
6055
6056
6057
6059
6061
6068
6069
6070
6071
6083
6084
6089
6091
6114
16
45
45
44
44
45
45
45
44
45
45
45
45
45
45
45
45
44
45
45
45
45
45
46
46
46
46
46
46
46
44
44
44
44
44
44
44
44
44
44
44
44
44
44
44
44
44
44
LOBE INDEX
LOBE #
LOBE INDEX
CAM SPECS
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
6129
6130
6131
6132
6133
6134
6157
6158
6159
6160
6161
6162
6163
6164
6165
6166
6167
6168
6169
6170
6172
6173
6174
6184
6185
6186
6187
6188
6192
6193
6194
6195
6196
6197
6198
6199
6200
6208
6209
6210
6211
6212
6213
6214
6215
6216
6217
6218
64
64
64
64
64
64
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
48
52
48
48
48
48
48
52
52
52
52
52
52
52
52
52
50
50
50
50
50
50
50
50
50
50
50
6219
6222
6224
6225
6226
6227
6228
6229
6230
6231
6232
6234
6235
6236
6237
6238
6239
6240
6241
6242
6243
6244
6245
6246
6247
6249
6250
6251
6252
6253
6254
6255
6256
6257
6258
6259
6260
6261
6262
6263
6264
6265
6266
6267
6268
6269
6270
6275
50
50
53
53
53
53
53
53
53
52
52
52
52
52
52
52
52
52
52
52
52
52
53
52
53
52
54
54
54
54
54
54
54
52
47
47
47
47
47
47
47
47
47
47
47
47
47
47
6276
6277
6278
6280
6281
6282
6283
6284
6285
6286
6289
6294
6301
6302
6303
6304
6305
6306
6307
6308
6310
6312
6313
6314
6330
6331
6332
6333
6334
6335
6336
6400
6402
6404
6406
6408
6410
6412
6414
6416
6418
6420
6440
6442
6444
6455
6457
6459
47
47
52
54
54
54
54
54
54
54
54
53
46
46
46
46
46
46
46
46
46
46
46
46
47
47
47
47
47
47
47
48
48
48
48
48
48
48
48
48
48
48
45
45
45
45
45
45
6575
6576
6577
6578
6579
6580
6581
6582
6583
6584
6585
6586
6587
6588
6589
6590
6591
6592
6593
6594
6595
6596
6610
6611
6612
6622
6624
6626
6628
6703
6704
6705
6706
6707
6708
6709
6710
6711
6712
6713
6714
6715
6716
6717
6718
6720
6724
6730
17
17
17
17
65
65
65
65
65
65
65
65
65
65
65
65
65
17
17
17
17
17
64
64
64
16
16
16
16
149
149
149
149
149
149
149
149
149
149
149
149
149
149
149
149
149
149
149
6780
6782
6784
6786
6788
6800
6801
6802
6803
6804
6805
6806
6807
6808
6882
6883
6884
6885
6886
6887
7015
7016
7020
7021
7022
7023
7028
7037
7038
7039
7040
7041
7042
7043
7044
7049
7068
7069
7071
7072
7073
7074
7075
7077
7078
7084
7085
7086
55
55
55
55
55
145
145
145
145
145
145
145
145
145
15
15
15
15
15
15
57
57
60
60
60
60
60
60
60
60
60
60
60
60
60
60
58
58
58
58
58
58
58
58
58
60
60
60
COMPCAMS.COM
CAM HELP® 1.800.999.0853
COMPONENTS
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
7087
7110
7113
7114
7115
7116
7117
7118
7120
7121
7122
7123
7124
7125
7127
7130
7131
7132
7133
7134
7135
7136
7158
7159
7160
7161
7162
7163
7164
7165
7166
7168
7169
7170
7171
7172
7174
7185
7186
7187
7188
7189
7190
7191
7192
7193
7194
7203
60
58
58
58
58
58
58
58
60
60
60
60
60
58
58
56
56
56
56
56
58
58
56
56
56
56
56
56
56
56
56
56
56
56
56
56
56
57
57
57
57
57
57
57
57
57
57
62
7204
7205
7206
7207
7208
7250
7260
7261
7262
7263
7265
7266
7267
7353
7354
7355
7356
7357
7358
7359
7362
7363
7364
7365
7366
7367
7368
7380
7381
7382
7383
7384
7385
7386
7387
7388
7389
7394
7395
7396
7399
7404
7405
7406
7408
7409
7411
7412
62
62
62
62
62
56
56
56
56
56
56
56
56
59
59
59
59
59
59
59
59
59
59
59
59
59
59
59
59
59
59
59
59
59
59
59
59
55
55
59
59
55
55
55
55
55
55
55
7413
7414
7415
7416
7665
7666
7667
7668
7669
7670
7671
8006
8007
8008
8022
8023
8024
8025
8026
8064
8066
8090
8096
8098
8250
8251
8252
8253
8254
8255
8260
8261
8262
8304
8306
8312
8314
8316
8325
8327
8360
8362
8364
8366
8410
8411
8412
8413
55
55
55
55
61
61
61
61
61
61
61
139
139
139
139
139
139
139
139
140
140
140
140
140
143
143
143
143
143
143
143
143
143
140
140
140
140
140
140
140
140
140
140
140
141
141
141
141
8414
8420
8421
8422
8423
8424
8430
8432
8434
8436
8440
8442
8444
8552
8553
8554
8555
8556
8560
8564
8566
8568
8590
8592
8594
8596
8598
8692
8696
8698
8699
8735
8736
8737
8738
8739
8740
8741
8742
8745
8746
8754
8755
8756
8757
8758
8759
8760
141
141
141
141
141
141
144
144
144
144
144
144
144
141
141
141
141
141
144
144
144
144
144
144
144
144
144
142
142
142
142
143
143
143
143
143
143
143
143
143
143
142
142
142
142
142
142
142
8761
8762
8763
8766
8767
8768
8770
8771
8776
8777
8778
8780
8781
8786
8791
8792
8793
9013
9014
9015
9042
9044
9045
9046
9048
9072
9073
9074
9086
9087
9090
9091
9092
9093
9094
9095
9096
9102
9103
9104
9105
9108
9109
9116
9117
9118
9122
9124
142
142
142
142
142
142
142
142
142
142
142
142
142
142
142
142
142
145
145
145
145
145
145
145
145
146
146
146
145
145
145
145
145
145
145
145
145
146
146
146
146
145
145
146
146
146
146
146
LOBE INDEX
LOBE #
LOBE INDEX
CAM SPECS
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
9126
9127
9128
9132
9133
9134
9135
9141
9146
9147
9148
9158
9159
9160
9161
9162
9185
9186
9187
9188
9189
9190
9191
9192
9193
9194
9195
9234
9236
9237
9238
9239
9240
9241
9242
9243
9244
9245
9246
9247
9248
9251
9252
9254
9256
9257
9258
9259
146
146
146
146
146
146
146
146
146
146
146
57
57
57
57
57
57
57
57
57
57
57
57
57
57
57
57
137
137
137
137
137
134
134
134
134
134
134
137
137
137
137
137
134
134
134
134
134
9260
9266
9267
9268
9269
9270
9271
9272
9273
9283
9284
9291
9292
9293
9294
9295
9296
9297
9298
9299
9300
9301
9302
9303
9304
9306
9307
9310
9311
9312
9313
9314
9315
9320
9321
9322
9323
9324
9325
9341
9342
9343
9344
9345
9346
9360
9361
9362
134
134
134
134
134
134
134
134
134
135
135
135
135
135
135
135
135
135
135
135
135
135
135
135
135
135
135
135
135
135
135
135
135
134
134
134
134
134
134
134
134
134
134
134
134
61
61
61
9363
9364
9365
9366
9367
9368
9369
9370
9371
9373
9374
9375
9376
9377
9384
9385
9386
9387
9388
9389
9418
9419
9420
9423
9424
9425
9444
9445
9446
9602
9603
9604
9605
9606
9608
9631
9632
9633
9635
9636
9637
9638
9639
9709
9710
9711
9712
9713
61
61
61
61
61
61
61
61
135
135
61
61
61
61
58
58
58
58
58
58
148
148
148
148
148
148
148
148
148
63
63
63
63
63
63
63
63
63
63
63
63
63
63
62
62
62
62
62
9714
9771
9772
9773
9829
9830
9831
9832
9833
9834
9835
9837
11000
11001
11002
11003
11060
11061
11062
11064
11066
11075
11076
11077
11078
11080
11081
11082
11083
11084
11090
11091
11092
11093
11094
11103
11104
11105
11106
11107
11113
11115
11116
11117
11119
11124
11126
11128
62
62
62
62
64
64
64
64
64
64
64
64
106
106
106
106
118
118
118
119
118
119
119
119
119
121
121
121
121
121
131
131
131
131
131
106
106
106
106
106
99
99
99
99
99
109
109
109
11130
11132
11145
11147
11149
11151
11153
11155
11157
11166
11170
11171
11172
11173
11175
11177
11192
11194
11195
11196
11230
11231
11232
11236
11258
11259
11260
11261
11262
11263
11265
11268
11269
11270
11271
11272
11273
11275
11282
11283
11284
11302
11304
11306
11308
11310
11312
11314
109
109
125
125
125
125
125
125
125
107
107
107
107
124
124
124
118
118
118
118
113
113
113
113
117
117
117
117
117
117
117
119
119
119
119
119
119
119
129
129
129
124
124
124
124
124
124
124
COMPCAMS.COM
CAM HELP® 1.800.999.0853
COMPONENTS
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
11340
11342
11344
11346
11348
11352
11353
11354
11363
11364
11368
11369
11370
11375
11376
11377
11460
11462
11464
11466
11468
11470
11472
11474
11476
11480
11494
11495
11496
11503
11504
11505
11506
11508
11509
11510
11511
11512
11513
11514
11515
11516
11517
11518
11519
11520
11526
11530
124
124
124
124
124
120
120
120
124
124
120
120
120
120
120
120
78
78
78
78
78
78
78
78
78
116
116
116
116
97
97
97
97
85
85
85
85
85
85
85
85
85
85
85
85
85
116
116
11531
11532
11534
11535
11536
11537
11560
11561
11563
11607
11609
11611
11710
11711
11728
11730
11732
11734
11736
11737
11740
11743
11748
11888
11889
11890
11891
11892
11902
11903
11904
11906
11908
11918
11919
11920
11922
11924
11926
11928
11954
11955
11956
11957
11958
11975
11976
11977
116
116
85
85
85
85
122
122
122
99
99
99
98
99
98
98
98
98
98
98
116
116
116
96
96
96
96
96
96
96
96
96
96
100
100
100
100
100
100
100
100
100
100
100
100
111
111
111
11978
11979
12022
12023
12044
12045
12046
12047
12048
12050
12052
12054
12060
12061
12066
12067
12068
12072
12073
12074
12094
12095
12100
12102
12103
12104
12106
12108
12110
12112
12114
12116
12117
12118
12127
12129
12131
12133
12134
12136
12138
12140
12142
12149
12170
12171
12172
12174
111
111
118
118
118
118
118
118
118
86
86
86
112
112
113
113
113
130
130
130
118
118
91
91
12176
12177
12178
12179
12180
12181
12182
12183
12185
12187
12188
12189
12190
12191
12192
12193
12194
12195
12196
12197
12198
12199
12200
12201
12202
12203
12204
12205
12206
12207
12208
12209
12210
12211
12212
12213
12214
12215
12216
12217
12218
12219
12220
12221
12222
12223
12224
12225
96
96
96
96
96
96
96
95
95
95
95
95
95
95
95
95
95
95
95
95
85
85
85
85
85
85
85
85
85
85
85
115
115
115
115
115
117
117
117
117
117
117
117
127
127
127
127
127
12226
12227
12228
12229
12230
12231
12232
12233
12234
12254
12255
12256
12257
12258
12260
12261
12262
12264
12265
12266
12267
12268
12294
12295
12296
12297
12298
12300
12301
12303
12304
12305
12306
12307
12310
12311
12312
12313
12314
12315
12316
12317
12318
12322
12324
12325
12328
12329
127
127
127
127
95
95
95
95
95
117
117
117
117
117
74
74
74
126
126
74
74
74
117
117
117
117
117
99
99
99
99
99
99
99
114
114
114
130
130
130
130
130
130
99
99
130
130
130
37
37
37
37
37
129
129
129
129
118
86
86
86
37
37
37
37
37
118
96
96
96
96
LOBE INDEX
LOBE #
LOBE INDEX
CAM SPECS
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
12330
12331
12332
12333
12334
12338
12339
12341
12342
12343
12344
12349
12352
12353
12356
12357
12358
12361
12362
12367
12368
12369
12374
12376
12378
12380
12382
12384
12385
12386
12387
12388
12389
12390
12391
12392
12393
12394
12398
12399
12400
12401
12402
12403
12404
12406
12408
12410
120
120
120
120
120
124
124
120
120
120
120
124
120
120
120
120
120
130
130
130
130
130
97
97
97
97
97
97
97
97
130
130
130
117
117
117
114
114
127
120
114
130
127
127
85
85
114
86
12412
12416
12417
12418
12419
12420
12421
12422
12423
12424
12425
12426
12428
12429
12430
12431
12432
12433
12434
12435
12436
12437
12438
12439
12440
12441
12442
12443
12444
12445
12446
12447
12448
12449
12450
12451
12455
12456
12457
12458
12459
12460
12461
12462
12463
12467
12470
12471
114
114
114
114
114
114
114
114
114
114
114
114
114
114
114
114
114
114
114
114
114
126
126
126
126
126
126
126
126
126
126
126
126
126
126
126
126
126
126
126
126
126
126
126
126
128
126
126
12472
12474
12475
12476
12478
12480
12482
12483
12484
12485
12486
12488
12488
12489
12489
12490
12490
12495
12496
12497
12500
12502
12504
12506
12508
12510
12522
12524
12526
12527
12528
12530
12537
12538
12539
12540
12541
12542
12543
12543
12544
12545
12546
12547
12548
12549
12550
12551
126
128
128
95
95
95
95
95
95
95
95
119
119
119
119
119
119
115
115
115
90
90
90
90
90
90
90
90
90
90
90
90
42
129
129
89
129
129
89
89
129
129
129
129
129
129
89
129
12552
12554
12555
12556
12558
12560
12564
12566
12568
12570
12571
12572
12573
12574
12575
12576
12577
12578
12580
12581
12582
12583
12584
12588
12589
12590
12594
12596
12597
12600
12602
12604
12605
12606
12607
12608
12610
12611
12612
12614
12616
12618
12619
12620
12621
12623
12624
12625
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
129
42
129
42
37
37
99
129
129
129
37
37
129
37
37
37
37
129
129
129
129
129
129
12626
12629
12630
12632
12634
12636
12638
12642
12644
12646
12648
12649
12650
12652
12654
12655
12656
12657
12658
12662
12668
12670
12672
12674
12676
12678
12680
12682
12684
12686
12688
12689
12690
12692
12694
12696
12698
12700
12702
12704
12706
12708
12710
12711
12712
12713
12716
12718
129
129
37
37
37
37
37
37
37
37
98
98
98
98
98
40
40
40
40
41
36
36
36
36
36
36
36
36
36
36
40
40
36
36
36
36
36
36
36
36
40
40
40
40
40
41
115
40
COMPCAMS.COM
CAM HELP® 1.800.999.0853
COMPONENTS
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
12719
12720
12721
12722
12723
12724
12725
12726
12727
12728
12729
12730
12731
12732
12733
12735
12736
12737
12738
12740
12741
12742
12743
12744
12745
12746
12748
12749
12750
12751
12752
12753
12754
12756
12757
12758
12759
12768
12769
12773
12776
12778
12786
12787
12795
12796
12797
12804
40
40
115
115
115
115
115
115
115
115
40
116
126
126
126
126
126
116
116
115
115
115
115
115
115
98
98
98
98
98
98
98
98
115
115
115
115
115
116
40
127
127
41
41
128
128
128
127
12805
12806
12807
12808
12823
12825
12827
12829
12831
12833
12835
12836
12837
12839
12842
12843
12844
12846
12848
12850
12851
12852
12854
12856
12858
12864
12866
12868
12874
12876
12878
12893
12894
12895
12896
12899
12900
12901
12905
12907
12908
12909
12910
12914
12915
12916
12917
12918
127
127
127
127
123
123
123
123
123
123
123
123
123
123
115
115
115
36
36
115
115
115
36
36
36
36
36
36
36
36
36
115
115
115
115
99
99
99
99
99
99
99
99
41
41
40
40
40
12919
12920
12922
12923
12926
12927
12951
12952
12953
12954
12955
12982
12984
12985
12987
12988
12991
12992
12993
12994
12995
13010
13011
13013
13014
13015
13016
13017
13018
13019
13020
13021
13022
13023
13024
13025
13026
13027
13028
13029
13033
13034
13037
13041
13045
13046
13047
13048
40
40
41
40
40
40
128
128
128
128
128
116
116
116
116
116
116
116
116
116
116
41
40
31
31
31
31
31
31
31
31
31
31
31
31
31
32
32
32
32
28
28
28
31
28
28
28
28
13050
13051
13052
13053
13054
13055
13056
13057
13058
13059
13064
13065
13066
13067
13068
13069
13070
13071
13072
13074
13075
13080
13081
13082
13083
13084
13085
13086
13087
13088
13089
13090
13093
13094
13095
13096
13097
13099
13115
13116
13117
13118
13119
13120
13121
13122
13123
13125
28
28
28
28
28
28
28
28
28
28
29
29
29
29
29
29
42
42
42
29
29
23
23
23
23
23
23
23
23
23
23
23
31
31
31
31
31
31
32
32
32
32
32
32
32
32
32
32
13130
13131
13132
13133
13134
13135
13136
13137
13138
13139
13140
13141
13142
13143
13144
13145
13146
13147
13148
13155
13156
13157
13158
13159
13160
13161
13162
13163
13164
13165
13166
13167
13168
13169
13170
13172
13173
13174
13175
13176
13180
13181
13182
13183
13184
13194
13195
13196
23
23
23
23
23
24
24
24
24
24
24
24
24
24
24
24
24
24
24
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
33
34
34
34
34
34
41
41
40
LOBE INDEX
LOBE #
LOBE INDEX
CAM SPECS
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
13197
13198
13199
13230
13231
13232
13233
13234
13235
13236
13237
13238
13262
13263
13264
13265
13266
13267
13268
13269
13299
13300
13301
13302
13303
13304
13305
13306
13307
13310
13311
13312
13313
13314
13315
13316
13317
13318
13321
13322
13323
13324
13325
13326
13330
13331
13332
13333
40
41
41
31
31
31
31
31
31
32
32
32
33
33
33
33
33
33
33
33
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
35
32
32
32
32
32
32
35
35
35
35
13334
13335
13340
13341
13342
13343
13344
13345
13354
13355
13356
13357
13358
13360
13361
13390
13391
13392
13393
13394
13395
13396
13397
13398
13440
13441
13442
13443
13444
13445
13446
13447
13448
13449
13450
13451
13452
13453
13454
13455
13456
13457
13458
13459
13460
13461
13462
13470
35
35
35
35
35
35
35
35
20
20
20
20
20
28
28
19
19
19
19
19
19
19
19
19
24
24
24
24
24
24
24
24
24
24
24
24
24
24
25
25
25
25
25
25
25
25
25
25
13471
13472
13473
13474
13475
13476
13477
13478
13479
13480
13481
13482
13483
13484
13485
13486
13487
13488
13489
13490
13491
13492
13531
13533
13540
13541
13542
13543
13544
13545
13546
13547
13548
13549
13550
13551
13552
13553
13554
13555
13556
13557
13558
13570
13571
13572
13573
13574
25
25
25
25
25
25
25
25
25
25
25
25
25
25
25
26
26
26
26
26
26
26
21
21
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
26
27
27
27
27
27
13575
13576
13577
13578
13579
13580
13581
13582
13583
13584
13585
13586
13587
13588
13592
13595
13596
13598
13600
13602
13632
13634
13636
13638
13640
13642
13644
13646
13648
13650
13652
13686
13688
13690
13692
13696
13698
13700
13702
13704
13707
13709
13711
13717
13719
13751
13752
13754
27
27
27
27
27
27
27
27
27
27
27
27
27
27
41
41
37
37
40
41
37
37
37
37
37
37
37
37
37
37
37
40
40
40
40
40
40
40
40
40
41
41
41
41
41
40
40
40
13800
13801
13802
13861
13862
13863
13948
13950
13952
13954
13956
13958
13960
13962
13964
13966
13976
13978
13980
13982
13984
13986
13988
13990
13992
13994
14004
14006
14008
14013
14020
14021
14022
14023
14024
14025
14026
14038
14039
14040
14042
14044
14049
14050
14051
14052
14053
14054
42
42
42
29
29
29
25
25
25
25
25
25
25
25
25
25
38
38
38
38
38
38
38
38
38
38
94
94
94
94
98
98
98
98
98
98
98
130
130
130
130
130
107
107
107
107
107
107
COMPCAMS.COM
CAM HELP® 1.800.999.0853
COMPONENTS
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
14154
14155
14156
14157
14158
14164
14165
14166
14167
14168
14240
14241
14242
14243
14244
14245
14246
14255
14256
14257
14280
14282
14284
14285
14286
14288
14387
14388
14490
14492
14494
14496
14502
14504
14506
14508
14700
14702
14711
16104
16106
16108
16110
16112
16114
16116
16118
16188
133
133
133
133
133
133
133
133
133
133
114
114
114
114
114
114
114
79
79
79
95
95
95
95
95
95
97
97
97
97
97
97
86
86
86
86
40
40
41
49
49
49
49
49
49
49
49
54
16200
16202
16203
16204
16206
16208
16210
16212
16214
16216
16218
16220
16222
16226
16230
16231
16235
16236
16237
16246
16248
16258
16259
16260
16261
16262
16263
16264
16265
16266
16267
16268
17238
17239
17240
17241
17242
17244
17245
17246
17248
17382
17525
17537
17538
17549
17570
17572
54
54
54
54
54
54
54
54
54
54
54
54
54
49
49
49
49
49
49
49
49
47
47
47
47
47
47
47
47
47
47
47
63
63
63
63
63
63
63
63
63
62
62
62
62
62
62
62
17574
17576
17600
17605
19194
19202
19203
19204
19205
19207
19209
19213
19214
19215
19216
19221
19223
19225
19235
19236
19240
19242
19244
19246
19251
19253
19254
19255
19256
19258
19262
19263
19264
19265
19266
19267
19268
19269
19272
19273
19274
19275
19276
19277
19278
19279
19280
19291
62
62
62
62
137
137
137
137
137
137
137
137
137
137
137
137
137
137
136
136
137
137
137
137
137
137
137
137
137
137
136
136
136
136
136
136
136
136
136
136
136
136
136
136
136
136
136
135
19292
19293
19294
19295
19296
19297
19298
19299
19300
19301
19305
19306
19307
19314
19315
19334
19341
19342
19343
19344
19345
19346
19370
19380
19400
19402
19404
19409
19411
19413
19425
19520
19522
19524
19531
19533
19535
19554
19556
19558
19564
19565
19566
19567
19568
19569
19575
19576
135
135
135
135
135
135
135
135
135
135
135
135
135
135
135
136
136
136
136
136
136
136
136
136
138
138
138
138
138
138
148
148
148
148
148
148
148
138
138
138
138
138
138
138
138
138
139
139
19577
19578
19579
19580
19581
19582
19583
19584
19585
19586
19587
19588
19592
19593
19594
19595
19596
19597
19598
19599
19608
19609
19610
19611
19615
19616
19617
19618
19701
19702
19703
19704
19705
19706
19707
19708
19712
19713
19714
19717
19718
19719
19766
19767
19768
19769
19820
19821
139
139
139
139
139
139
139
139
139
139
139
139
139
139
139
139
139
139
139
139
139
139
139
139
139
139
139
139
147
147
147
147
147
147
147
147
147
147
147
147
147
147
138
138
138
138
138
138
LOBE INDEX
LOBE #
LOBE INDEX
CAM SPECS
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
LOBE #
PAGE #
19822
19823
19824
19825
19830
19831
19832
19833
19834
19835
19836
20400
138
138
138
138
138
138
138
138
138
138
138
94
20401
20402
20404
20410
20412
20413
20414
20515
20519
20520
20521
20522
94
94
94
94
94
94
94
74
74
74
74
74
20525
20527
20535
20540
20541
20542
20572
20574
5110A
5120A
5126A
5136A
74
74
21
74
74
74
74
74
12
12
12
12
8202-8203
8204-8205
8206-8207
8216-8217
8218-8219
8232-8233
8234-8235
8236-8237
8240-8241
8242-8243
8374-8375
8376-8377
143
143
143
143
143
143
143
143
143
143
140
140
8380-8381
8382-8383
8384-8385
8386-8387
140
140
140
140
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Tarif ARP 2014 - Jacquemin Tuning

BRP Product Catalog 4 mbs