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Technical Articles for Part Number CCA-SK68-239-4
COMP Cams Xtreme 4x4 Cam and Lifter Kits
Cam and Lifters, Timing, Hydraulic Flat Tappet, Adv. Duration 262/270, Lift .493/.512, AMC, Jeep, L6, Kit
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Estimated Ship Date: Dec 14, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
SK68-239-4
Part Type:
Product Line:
Summit Racing Part Number:
CCA-SK68-239-4
UPC:
036584039990
Cam Style:
Hydraulic flat tappet
Basic Operating RPM Range:
1,400-5,700
Camshaft Use:
Street/Strip
Intake Duration at 050 inch Lift:
218
Exhaust Duration at 050 inch Lift:
226
Duration at 050 inch Lift:
218 int./226 exh.
Advertised Intake Duration:
262
Advertised Exhaust Duration:
270
Advertised Duration:
262 int./270 exh.
Intake Valve Lift with Factory Rocker Arm Ratio:
0.493 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio:
0.512 in.
Valve Lift with Factory Rocker Arm Ratio:
0.493 int./0.512 exh.
Lobe Separation (degrees):
111
Grind Number:
X4262H
Computer-Controlled Compatible:
No
Lifters Included:
Yes
Lifter Style:
Hydraulic flat tappet
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:
Yes
Pushrods Included:
No
Rocker Arms Included:
No
Gaskets Included:
No
Valve Springs Required:
Yes
Quantity:
Sold as a kit.
Notes:
Not for fuel injected engines.
COMP Cams Xtreme 4x4 Cam and Lifter Kits
These COMP Cams Xtreme 4x4 cam and lifter kits are built to take advantage of the latest cam technology to provide maximum performance and torque for your vehicle. Whether your use is off-roading or towing, there is an Xtreme 4x4 kit for you. By using an aggressive lobe profile, these cams provide better throttle response and more mid and top-end horsepower.
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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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