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Technical Articles for Part Number CCA-SK12-413-8
COMP Cams Xtreme Energy 4x4 Retro-Fit Cam and Lifter Kits SK12-413-8
Part Number: CCA-SK12-413-8
COMP Cams Xtreme Energy 4x4 Retro-Fit Cam and Lifter Kits
Cam/Lifters/Timing, Hydraulic Roller Tappet, Adv. Duration 270/274, Lift .474/.474, Chevy, Small Block, Kit
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Estimated Ship Date: Apr 8, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
SK12-413-8
Part Type:
Product Line:
Summit Racing Part Number:
CCA-SK12-413-8
UPC:
036584041221
Cam Style:
Hydraulic roller, Retro-fit
Basic Operating RPM Range:
1,000-5,000
Camshaft Use:
Street/Strip
Intake Duration at 050 inch Lift:
220
Exhaust Duration at 050 inch Lift:
224
Duration at 050 inch Lift:
220 int./224 exh.
Advertised Intake Duration:
270
Advertised Exhaust Duration:
274
Advertised Duration:
270 int./274 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.474 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.474 in.
Valve Lift with Factory Rocker Arm Ratio:
0.474 int./0.474 exh.
Lobe Separation (degrees):
111
Grind Number:
X4270HR
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
Timing Chain Style:
Double non-roller
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 Xtreme Energy 4x4 Retro-Fit Cam and Lifter Kits
COMP Cams Xtreme 4x4 cam and lifters are built to take advantage of the latest cam technology to provide maximum performance and low-end torque for your vehicle. Whether your use is off-roading or towing, there is an Xtreme 4x4 for you. By using an aggressive lobe profile, these cams provide better throttle response and more top-end horsepower than equivalent cams from other manufacturers, while delivering increased engine vacuum. Matching lifters are included.
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Some parts are not legal for use in California or other states with similar laws / regulations
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