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Technical Articles for Part Number CCA-CL51-601-11
COMP Cams Mutha Thumpr Hydraulic Roller Camshafts CL51-601-11
Part Number: CCA-CL51-601-11
COMP Cams Mutha Thumpr Hydraulic Roller Camshafts
Camshaft Kits, Mutha Thumpr Hydraulic Roller Camshafts, Retro-fit, Advertised Duration 291/311, Lift 0.522/0.508, Pontiac, Pontiac V8, Kit
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Estimated Ship Date: Dec 14, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
CL51-601-11
Part Type:
Product Line:
Summit Racing Part Number:
CCA-CL51-601-11
UPC:
036584382171
Cam Style:
Hydraulic roller, Retro-fit
Basic Operating RPM Range:
2,000-5,800
Camshaft Use:
Street/Strip
Camshaft Manufacturers Description:
High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers, rough idle.
Intake Duration at 050 inch Lift:
235
Exhaust Duration at 050 inch Lift:
249
Duration at 050 inch Lift:
235 int./249 exh.
Advertised Intake Duration:
291
Advertised Exhaust Duration:
311
Advertised Duration:
291 int./311 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.522 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.508 in.
Valve Lift with Factory Rocker Arm Ratio:
0.522 int./0.508 exh.
Lobe Separation (degrees):
107
Camshaft Gear Attachment:
1-bolt
Computer-Controlled Compatible:
No
Lifters Included:
No
Lifter Style:
Hydraulic roller
Valve Springs Included:
No
Retainers Included:
No
Locks Included:
No
Valve Stem Seals Included:
No
Timing Chain and Gears Included:
No
Assembly Lubricant Included:
No
Pushrods Included:
No
Rocker Arms Included:
No
Gaskets Included:
No
Valve Springs Required:
Yes
Quantity:
Sold as a kit.
COMP Cams Mutha Thumpr Hydraulic Roller Camshafts
COMP Cams Mutha Thumpr hydraulic roller camshafts are manufactured to the strictest tolerances, rigorously tested and are checked for quality. The Thumpr lobe profiles are designed to optimize the character and sound, while providing excellent stability and a very wide power range—specific profiles are developed uniquely for the intake and exhaust. Have you ever been to the races and heard how nasty the cams sound? The Thumpr series of cams give you everyday drivability but have that nasty race engine growl! COMP Cams competitive drive, superior engineering, and cutting-edge technology is what keeps them at the fore front from any other camshaft manufacturer. So ... pick the cam for your application, then add a set of hydraulic lifters—and you will be the talk of the town!
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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