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Technical Articles for Part Number CCA-CL12-600-8
COMP Cams Thumpr Retrofit Hydraulic Roller Cam and Lifter Kits CL12-600-8
Part Number: CCA-CL12-600-8
COMP Cams Thumpr Retrofit Hydraulic Roller Cam and Lifter Kits
Cam and Lifters, Hydraulic Roller Tappet, Advertised Duration 283/303, Lift .511/.498, Chevy, Small Block, Kit
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Overview
Brand:
Manufacturer's Part Number:
CL12-600-8
Part Type:
Product Line:
Summit Racing Part Number:
CCA-CL12-600-8
UPC:
036584153399
Cam Style:
Hydraulic roller, Retro-fit
Basic Operating RPM Range:
1,900-5,600
Camshaft Use:
Street/Strip
Intake Duration at 050 inch Lift:
227
Exhaust Duration at 050 inch Lift:
241
Duration at 050 inch Lift:
227 int./241 exh.
Advertised Intake Duration:
283
Advertised Exhaust Duration:
303
Advertised Duration:
283 int./303 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.511 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.498 in.
Valve Lift with Factory Rocker Arm Ratio:
0.511 int./0.498 exh.
Lobe Separation (degrees):
107
Camshaft Gear Attachment:
3-bolt
Grind Number:
283THR7
Computer-Controlled Compatible:
No
Lifters Included:
Yes
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.
Notes:
Retro-fit: Designed for early non-roller blocks. Requires thrust button and wear plate.
COMP Cams Thumpr Retrofit Hydraulic Roller Cam and Lifter Kits
Musclecar sound is back and nastier than ever with these Thumpr retrofit hydraulic roller cam and lifter kits from COMP Cams! These cams feature a thumping high performance idle and provide significant horsepower and torque increases. Specially engineered profiles are offered for each unique engine, providing the perfect combination of an early intake valve opening, a long exhaust duration, and a generous amount of intake and exhaust overlap to maximize your engine's nasty-idling characteristics without negatively impacting streetability. These kits include high-quality matched lifters for unbeatable performance, durability, and ease of installation.
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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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