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Technical Articles for Part Number CCA-K11-254-4
COMP Cams Xtreme Energy Cam and Lifter Kits K11-254-4
Part Number: CCA-K11-254-4
COMP Cams Xtreme Energy Cam and Lifter Kits
Cam/Lifters/Valvetrain, Hydraulic Flat Tappet, Adv. Duration 294/306, Lift .588/.593 in., Chevy, Big Block
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Estimated Ship Date: Jun 10, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
K11-254-4
Part Type:
Product Line:
Summit Racing Part Number:
CCA-K11-254-4
UPC:
036584025412
Cam Style:
Hydraulic flat tappet
Basic Operating RPM Range:
2,800-7,000
Camshaft Use:
Street/Strip
Intake Duration at 050 inch Lift:
250
Exhaust Duration at 050 inch Lift:
256
Duration at 050 inch Lift:
250 int./256 exh.
Advertised Intake Duration:
294
Advertised Exhaust Duration:
306
Advertised Duration:
294 int./306 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.588 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.593 in.
Valve Lift with Factory Rocker Arm Ratio:
0.588 int./0.593 exh.
Lobe Separation (degrees):
110
Grind Number:
CB XE294H-10
Computer-Controlled Compatible:
No
Lifters Included:
Yes
Lifter Style:
Hydraulic flat tappet
Valve Springs Included:
Yes
Outside Diameter of Outer Spring (in.):
1.509 in.
Retainers Included:
Yes
Locks Included:
Yes
Valve Stem Seals Included:
Yes
Timing Chain and Gears Included:
Yes
Timing Chain Style:
Double non-roller
Assembly Lubricant Included:
Yes
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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Some parts are not legal for use in California or other states with similar laws / regulations
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