What type of lifters are required for this camshaft?

This COMP Cams camshaft is a solid roller design and requires the use of solid roller lifters. It is not compatible with flat tappet lifters.

What other valvetrain components should I consider when installing this camshaft?

When installing a solid roller camshaft, it's crucial to use compatible roller lifters, pushrods, and valve springs that can handle the increased lift and RPMs. Always consult the manufacturer's recommendations for a complete valvetrain setup.

Is this camshaft legal for use in California?

No, this camshaft is not CARB approved and cannot be shipped to California due to emissions regulations.

COMP Cams Solid Roller Camshaft 11-825-9

Name: COMP Cams Camshaft CB 311R-10
Brand: COMP Cams
Price: 542.96 USD
Availability: InStock

COMP Cams Camshaft CB 311R-10

$542.96

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 CB 311R-10 solid roller camshaft for Chevrolet Big Block 396-454 engines. Designed for Super Gas/Super Comp applications.

Key Features

Fits Chevrolet Big Block 396-454 engines originally equipped with flat tappet camshafts.
Solid roller camshaft design for high-RPM performance and aggressive valve lift.
Intake duration of 272 degrees and exhaust duration of 280 degrees at .050 lift.
Intake lift of .558 inches and exhaust lift of .578 inches.
107 degree lobe separation angle for a strong power band.
Suitable for engines up to 500 cubic inches, especially with aftermarket cylinder heads.

⚠️ 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 CB 311R-10 camshaft features a 272 degrees intake duration and 280 degrees exhaust duration at .050 lift, with a .558 lift on the intake and .578 lift on the exhaust. It's a solid roller camshaft designed for drag racing applications, specifically for Super Gas and Super Comp classes. This camshaft is intended for Chevrolet Big Block engines up to 500 cubic inches, especially those running aftermarket cylinder heads.

Built for performance, this camshaft utilizes a solid roller design, which is known for its ability to handle higher RPMs and provide more aggressive valve lift compared to flat tappet designs. This makes it a strong choice for engines built for racing where maximum power output is critical. The specific lobe separation angle of 107 degrees contributes to its aggressive power band, making it well-suited for vehicles like the Chevrolet Impala, Chevelle, and Camaro from the late 60s and early 70s, as well as many other Chevrolet models originally equipped with Big Block engines.

When installing this camshaft, remember that it requires the use of roller lifters and compatible valve springs. It's important to ensure your engine's valvetrain is set up to handle the demands of a solid roller camshaft. This camshaft is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper setup and break-in procedures to ensure optimal performance and longevity.