What is the primary benefit of installing this COMP Cams kit?

This kit is designed to significantly increase horsepower, adding over 125 hp to your Chevrolet Small Block engine. It's ideal for street machines looking for improved performance and a noticeable choppy idle.

Does this camshaft kit fit all Chevrolet Small Block engines?

No, this kit is specifically for GEN 1 Small Blocks and does not fit LT1/LT4 engines or factory roller small blocks from 1985 and newer. You must confirm your engine uses a flat tappet camshaft.

What supporting modifications are recommended with this camshaft kit?

For optimal performance, it's recommended to use this kit with a 2200+ RPM stall torque converter and appropriate rear-end gearing. A better intake and exhaust system will also help you achieve the full horsepower potential.

COMP Cams Cam & Lifter Kit CL12-560-4 for Chevy Small Block

Name: COMP Cams Cam & Lifter Kit CS Nx268H-13
Brand: COMP Cams
SKU: comp-cams-comp-cams-cam-lifter-kit-cs-nx268h-13-t14-4395653
Price: 433.87 USD
Availability: BackOrder

COMP Cams Cam & Lifter Kit CS Nx268H-13

$433.87

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 Nitrous HP hydraulic flat tappet cam and lifter kit for Chevrolet Small Block engines. Adds 125+ hp for street machines.

Key Features

Fits Chevrolet GEN 1 Small Blocks including 262, 265, 267, 283, 302, 305, 307, 327, 350 and 400.
Adds over 125 horsepower for street machines.
Features a choppy idle characteristic.
Includes camshaft, lifters, assembly lube, decals, and instructions.
Cam specs: 224° intake / 236° exhaust duration at .050" lift.
Cam specs: .462" intake / .480" exhaust lift.

⚠️ 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

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

Product Details

This is the COMP Cams Nitrous HP hydraulic flat tappet camshaft and lifter kit, part number CL12-560-4, designed for Chevrolet Small Block engines. If you're building a street machine that needs a noticeable bump in power, this kit is a popular choice. It's engineered to work with a 2200+ RPM stall torque converter, suitable gearing, and will give you that desirable choppy idle many enthusiasts look for.

This kit includes the camshaft, lifters, assembly lube, decals, and instructions, so you have the essentials to get started. The camshaft specs are 224 degrees of intake duration and 236 degrees of exhaust duration at .050 inch lift, with a .462 inch intake lift and .480 inch exhaust lift. This combination is known to add over 125 horsepower to your engine when properly set up with supporting modifications like a better intake and exhaust system.

It's important to note that this kit is specifically for GEN 1 Small Blocks and does not fit LT1/LT4 engines or factory roller small blocks built from 1985 onward. You'll need to confirm if your engine uses a flat tappet or roller camshaft by removing the intake manifold or timing cover. For 1955-1957 Chevrolet 265 engines, a specific oiling groove on the 5th cam journal is required.