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Technical Articles for Part Number CCA-K01-425-8
COMP Cams Xtreme Energy Cam and Lifter Kits K01-425-8
Part Number: CCA-K01-425-8
COMP Cams Xtreme Energy Cam and Lifter Kits
Cam/Lifter, Valvetrain, Hydraulic Roller Tappet, Advertised Duration 300/306, Lift .560/.580, Chevy, Big Block
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Estimated Ship Date: Dec 14, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
K01-425-8
Part Type:
Product Line:
Summit Racing Part Number:
CCA-K01-425-8
UPC:
036584064367
Cam Style:
Hydraulic roller, OE roller
Basic Operating RPM Range:
3,200-6,200
Camshaft Use:
Street/Strip
Intake Duration at 050 inch Lift:
248
Exhaust Duration at 050 inch Lift:
254
Duration at 050 inch Lift:
248 int./254 exh.
Advertised Intake Duration:
300
Advertised Exhaust Duration:
306
Advertised Duration:
300 int./306 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.560 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.580 in.
Valve Lift with Factory Rocker Arm Ratio:
0.560 int./0.580 exh.
Lobe Separation (degrees):
110
Grind Number:
G6 XR300HR-10
Computer-Controlled Compatible:
No
Lifters Included:
Yes
Lifter Style:
Hydraulic roller
Valve Springs Included:
Yes
Outside Diameter of Outer Spring (in.):
1.437 in.
Retainers Included:
Yes
Locks Included:
Yes
Valve Stem Seals Included:
Yes
Timing Chain and Gears Included:
Yes
Timing Chain Style:
Double roller
Assembly Lubricant Included:
No
Pushrods Included:
No
Rocker Arms Included:
No
Gaskets Included:
No
Valve Springs Required:
No
Quantity:
Sold as a kit.
COMP Cams Xtreme Energy Cam and Lifter Kits
COMP Cams Xtreme Energy cam and lifter kits are built to take advantage of the latest cam technology and provide maximum performance. Whether your use is off-roading, towing, or street performance, there are Xtreme Energy options available for you. By using an aggressive lobe profile, they provide better throttle response and more top-end horsepower than equivalent kits from other manufacturers, while delivering increased engine vacuum. Order the model designed for your vehicle and engine application.
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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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