What is the main difference between this camshaft and one with an oiling groove?

This camshaft, the CB 306S-10, does not have a rear journal oiling groove. Engines from 1965-66 with a 396 Big Block often feature this groove for added lubrication. If your specific engine requires that groove, this particular camshaft will not fit.

What kind of performance gains can I expect from this camshaft?

This camshaft is designed for improved performance in bracket racing and high-RPM applications like jet boats. It's best suited for engines with higher compression ratios and tunnel ram intake setups, where it will contribute to increased horsepower and torque at higher engine speeds.

Does this camshaft come with any installation hardware?

This camshaft is sold individually and does not include installation hardware such as lifters, pushrods, or valve springs. It is recommended to use matching COMP Cams components or consult your service manual for the correct specifications and required parts for installation.

COMP Cams Solid Flat Camshaft CB 306S-10 11-220-4

Name: COMP Cams Camshaft CB 306S-10
Brand: COMP Cams
Price: 323.69 USD
Availability: InStock

COMP Cams Camshaft CB 306S-10

$323.69

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 306S-10 solid flat tappet camshaft for BBC 396-454 engines. Designed for bracket racing and jet boats.

Key Features

Fits Chevrolet Big Block 396-454 engines originally equipped with flat tappet camshafts.
Solid flat tappet design with 260 degrees of duration on both intake and exhaust.
Magnum series construction for durability in performance applications.
Recommended for bracket race applications and jet boats with B impellers.
Suitable for engines with 10.5:1 or higher compression ratios.
Designed for use with tunnel ram intake manifolds.

⚠️ 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 306S-10 camshaft features a 260/260 degree duration split and is designed for solid flat tappet applications. It's built for Chevrolet Big Block engines, specifically the 396 to 454 cubic inch displacements, and is a popular choice for bracket racing setups or high-performance jet boats using a B impeller.

For optimal performance, this camshaft is recommended for engines with 10.5:1 or higher compression ratios and is well-suited for use with a tunnel ram intake manifold. The Magnum series construction means it's well-built to handle the demands of these applications. It's important to note that this camshaft is not compatible with 1965-66 396 Big Block engines that have an oiling groove in the rear journal; if your engine requires that specific feature, you'll need to contact us for a different option.

This camshaft fits a wide range of Chevrolet vehicles originally equipped with flat tappet camshafts, including models like the Chevrolet Impala, Camaro, and C10 Pickup. Always consult your vehicle's specific service manual for installation procedures and any additional components that may be required.