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Technical Articles for Part Number CCA-CL11-451-8
COMP Cams Xtreme Marine Cam and Lifter Kits CL11-451-8
Part Number: CCA-CL11-451-8
COMP Cams Xtreme Marine Cam and Lifter Kits
Cam and Lifters, Hydraulic Roller Tappet, Advertised Duration 284/290, Lift .547/.547, Chevy, Big Block, Kit
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Estimated Ship Date: Nov 6, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
CL11-451-8
Part Type:
Product Line:
Summit Racing Part Number:
CCA-CL11-451-8
UPC:
036584040699
Cam Style:
Hydraulic roller, Retro-fit
Basic Operating RPM Range:
2,200-5,800
Camshaft Use:
Marine
Intake Duration at 050 inch Lift:
230
Exhaust Duration at 050 inch Lift:
236
Duration at 050 inch Lift:
230 int./236 exh.
Advertised Intake Duration:
284
Advertised Exhaust Duration:
290
Advertised Duration:
284 int./290 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.547 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.547 in.
Valve Lift with Factory Rocker Arm Ratio:
0.547 int./0.547 exh.
Lobe Separation (degrees):
112
Grind Number:
CB XM 284HR-12
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:
Designed for marine use. Requires thrust button and wear plate.
COMP Cams Xtreme Marine Cam and Lifter Kits
COMP Cams Xtreme marine cam and lifter kits take advantage of the newest developments in camshaft design. Their aggressive lobe design produces better throttle response and top-end horsepower than other systems with the same duration at .050 in., while delivering increased engine vacuum. These kits are available for everything from pleasure boats to race applications, so you can always have Xtreme performance on the water.
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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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