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Technical Articles for Part Number CCA-K12-250-3
COMP Cams Xtreme Energy Cam and Lifter Kits
Cam/Lifter, Valvetrain, Hydraulic Flat Tappet, Advertised Duration 284/296, Lift .507/.510, Chevy Small Block
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Estimated Ship Date: Apr 10, 2026 Would you rather pick it up?
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Overview
Brand:
Manufacturer's Part Number:
K12-250-3
Part Type:
Product Line:
Summit Racing Part Number:
CCA-K12-250-3
UPC:
036584024545
Cam Style:
Hydraulic flat tappet
Basic Operating RPM Range:
2,300-6,500
Camshaft Use:
Street/Strip
Intake Duration at 050 inch Lift:
240
Exhaust Duration at 050 inch Lift:
246
Duration at 050 inch Lift:
240 int./246 exh.
Advertised Intake Duration:
284
Advertised Exhaust Duration:
296
Advertised Duration:
284 int./296 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.507 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.510 in.
Valve Lift with Factory Rocker Arm Ratio:
0.507 int./0.510 exh.
Lobe Separation (degrees):
110
Grind Number:
CS XE284H-10
Computer-Controlled Compatible:
No
Lifters Included:
Yes
Lifter Style:
Hydraulic flat tappet
Valve Springs Included:
Yes
Outside Diameter of Outer Spring (in.):
1.430 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:
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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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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