What specific components are included in this COMP Cams camshaft kit?

This kit includes the CS X4 254H-11 camshaft, a set of lifters, a timing chain set, assembly lube, and decals. It's a comprehensive package for upgrading your engine's valvetrain.

How do I know if my Chevrolet Small Block engine is compatible with this camshaft?

This kit is for Gen 1 Small Block Chevy engines that use a flat tappet camshaft. It does not fit LT1/LT4 or factory roller camshaft engines from 1985 and newer, or any LS-based engines. You may need to remove the intake or timing cover to confirm your engine's design.

Are there any special considerations for early Chevrolet 265 engines?

Yes, for 1955-1957 Chevrolet 265 engines, a groove on the 5th cam journal is required for proper oiling. If your engine lacks this groove, you may need to contact COMP Cams for further information or modifications.

COMP Cams Camshaft Kit CS X4 254H-11 SK12-235-2

Name: COMP Cams Camshaft Kit CS X4 254H-11
Brand: COMP Cams
Price: 389.45 USD
Availability: InStock

COMP Cams Camshaft Kit CS X4 254H-11

$389.45

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

COMP Cams CS X4 254H-11 camshaft kit. Includes camshaft, lifters, timing set, and lube for Gen 1 Small Block Chevy engines.

Key Features

Fits 107+ vehicle make/model combinations.
Includes camshaft, lifters, timing chain set, and assembly lube.
Xtreme 4x4 camshaft profile with 210/218 degrees duration at .050 lift.
Designed for Chevrolet Gen 1 Small Block engines with flat tappet designs.
Compatible with engines like the 262, 265, 283, 305, 307, 327, 350, and 400.
Does not fit LT1/LT4 or factory roller small blocks from 1985 and newer, or LS-based engines.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

This COMP Cams kit gives you the essential parts to upgrade your Chevrolet Gen 1 Small Block engine. Inside this box, you'll find the CS X4 254H-11 camshaft itself, a set of lifters, a new timing chain set, assembly lube to get everything installed smoothly, and some decals. This kit is designed for a range of classic Chevy V8s, including popular engines like the 350, 305, and 400, but it's important to confirm your specific engine is a flat tappet design and not a factory roller from 1985 or later.

The Xtreme 4x4 camshaft profile in this kit is built for improved performance in trucks and heavier vehicles. With intake and exhaust durations of 210 and 218 degrees respectively at .050 lift, it offers a noticeable bump in power and torque without being overly radical for street use. This camshaft is well-built and paired with the included lifters and timing set, it's a solid option for rebuilding or enhancing your engine's breathing. Remember to check your specific engine block for the oiling groove on the 5th cam journal if you have an early 1955-1957 Chevrolet 265 engine.