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Technical Articles for Part Number CCA-SK12-418-8
COMP Cams Xtreme Marine Cam and Lifter Kits SK12-418-8
Part Number: CCA-SK12-418-8
COMP Cams Xtreme Marine Cam and Lifter Kits
Cam/Lifters/Timing, Hydraulic Roller Tappet, Advertised Duration 276/282, Lift .503/.510, Chevy, Small Block, Kit
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Estimated Ship Date: Dec 14, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
SK12-418-8
Part Type:
Product Line:
Summit Racing Part Number:
CCA-SK12-418-8
UPC:
036584041627
Cam Style:
Hydraulic roller, Retro-fit
Basic Operating RPM Range:
1,800-5,800
Camshaft Use:
Marine
Camshaft Manufacturers Description:
Good for jet with A impeller, strong mid-range power, needs good exhaust.
Intake Duration at 050 inch Lift:
224
Exhaust Duration at 050 inch Lift:
230
Duration at 050 inch Lift:
224 int./230 exh.
Advertised Intake Duration:
276
Advertised Exhaust Duration:
282
Advertised Duration:
276 int./282 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.503 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.510 in.
Valve Lift with Factory Rocker Arm Ratio:
0.503 int./0.510 exh.
Lobe Separation (degrees):
112
Camshaft Gear Attachment:
3-bolt
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:
Yes
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 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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