What is the benefit of the nitrided finish on this camshaft?

The nitrided finish is a surface hardening process that significantly improves the wear resistance and durability of the camshaft lobes and journals. This helps the camshaft last longer, especially in high-performance applications with flat tappet designs.

What kind of stall converter and compression ratio do I need for this camshaft?

This camshaft is designed for engines running a 4000+ RPM stall torque converter and a compression ratio of 10.5:1 or higher. These specifications are crucial for achieving the intended performance gains.

How can I tell if my Chevrolet Small Block has a flat tappet or roller camshaft?

You will need to remove the intake manifold or timing cover to visually inspect the camshaft. Factory roller camshafts have a lifter with a roller wheel on the bottom, while flat tappet lifters have a flat bottom that slides directly on the cam lobe.

COMP Cams CS 290B-6 Solid Flat Tappet Camshaft 12-611-20

Name: COMP Cams Nitrided Camshaft CS 290B-6
Brand: COMP Cams
Price: 467.89 USD
Availability: InStock

COMP Cams Nitrided Camshaft CS 290B-6

$467.89

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

COMP Cams CS 290B-6 solid flat tappet camshaft for Chevrolet Gen 1 Small Blocks. Nitrided for durability.

Key Features

Fits Chevrolet Gen 1 Small Blocks including 262, 265, 267, 283, 302, 305, 307, 327, 350, and 400 cubic inch engines.
Features a nitrided finish for improved wear resistance and durability.
Designed for drag race and oval track applications with fast corners.
Optimized for engines with 4000+ RPM stall torque converters and 10.5:1+ compression.
Offers more top-end power compared to COMP Cams part 12-610-5.
Solid flat tappet camshaft design.

⚠️ 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

If you're building a drag or oval track engine for a 1/4 to 3/8 mile track with fast corners, this COMP Cams Nitrided Camshaft CS 290B-6 is designed to give you more top-end power than stock. It's built for engines running 4000+ RPM stall converters and a compression ratio of 10.5:1 or higher.

This camshaft features a nitrided finish, which is a surface hardening process that significantly improves wear resistance and durability for the camshaft lobes and journals. This is especially important for flat tappet designs where direct metal-to-metal contact occurs. The 255/266 degree intake/exhaust duration at .050 lift is optimized for aggressive performance in racing applications. It fits a wide range of Chevrolet Gen 1 Small Block engines, including popular displacements like the 350, 400, and 327, but it's crucial to confirm your specific engine uses a flat tappet design, as many later models switched to factory roller setups.

For optimal performance, this camshaft requires a 4000+ RPM stall torque converter and a compression ratio of 10.5:1 or higher. Always consult the manufacturer's installation instructions for specific details regarding your engine build.