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Technical Articles for Part Number CCA-K12-702-8
COMP Cams Magnum Solid Roller Cam and Lifter Kits K12-702-8
Part Number: CCA-K12-702-8
COMP Cams Magnum Solid Roller Cam and Lifter Kits
Cam/Lifter, Valvetrain, Mechanical Roller Tappet, Adv. Duration 280/280, Lift .550/.550, Chevy, Small Block
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
K12-702-8
Part Type:
Product Line:
Summit Racing Part Number:
CCA-K12-702-8
UPC:
036584460343
Cam Style:
Solid roller, Retro-fit
Basic Operating RPM Range:
2,500-6,500
Camshaft Use:
Street/Strip
Intake Duration at 050 inch Lift:
236
Exhaust Duration at 050 inch Lift:
236
Duration at 050 inch Lift:
236 int./236 exh.
Advertised Intake Duration:
280
Advertised Exhaust Duration:
280
Advertised Duration:
280 int./280 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.550 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.550 in.
Valve Lift with Factory Rocker Arm Ratio:
0.550 int./0.550 exh.
Lobe Separation (degrees):
110
Intake Valve Lash:
0.020 in.
Exhaust Valve Lash:
0.020 in.
Grind Number:
CS 280A-R10
Computer-Controlled Compatible:
No
Lifters Included:
Yes
Lifter Style:
Mechanical roller
Valve Springs Included:
Yes
Outside Diameter of Outer Spring (in.):
1.460 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:
No
Pushrods Included:
No
Rocker Arms Included:
No
Gaskets Included:
No
Valve Springs Required:
No
Quantity:
Sold as a kit.
COMP Cams Magnum Solid Roller Cam and Lifter Kits
COMP Cams Magnum solid roller cam and lifter kits are designed for everyone from the serious street performance enthusiast to the all-out competition drag racer. Whether you're driving a street rod, show car with power accessories, a super gas, or a super competition car on alcohol, one of these kits will fit your engine's needs .
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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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