What is the difference between a solid flat tappet and a hydraulic lifter camshaft?

Solid flat tappet camshafts, like this one, use solid lifters that require periodic valve lash adjustments to maintain proper valve train geometry. Hydraulic lifters use oil pressure to automatically maintain zero lash, requiring less maintenance but sometimes limiting high-RPM performance.

What is the recommended compression ratio for this camshaft?

This COMP Cams camshaft is designed for engines with a compression ratio of 11.5:1 or higher. Using it with lower compression ratios may not yield optimal performance gains.

Are there any specific engine years or types that are NOT compatible with this camshaft?

Yes, this camshaft is not compatible with 1965-1966 396 Big Block Chevrolet engines that feature an oiling groove in the rear journal. For those specific engines, a different camshaft is required.

COMP Cams Camshaft CB 320B-10 Magnum Marine 280/286 Solid Fl

Name: COMP Cams Camshaft CB 320B-10
Brand: COMP Cams
Price: 378.78 USD
Availability: InStock

COMP Cams Camshaft CB 320B-10

$378.78

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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 Magnum Marine 280/286 Solid Flat Tappet Camshaft. For Chevrolet Big Block 396-454 engines originally equipped with flat tappet camshafts.

Key Features

Fits 91+ vehicle make/model combinations originally equipped with flat tappet camshafts.
Solid flat tappet camshaft design for Chevrolet Big Block 396-454 engines.
Intended for use with tunnel ram intake manifolds and 11.5:1+ compression ratios.
Features 280 degrees of intake duration and 286 degrees of exhaust duration.
Well-built for performance street and marine applications.

⚠️ 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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Product Details

This COMP Cams Magnum Marine camshaft is a solid flat tappet design, intended for larger displacement engines like the Chevrolet 396 to 454 cubic inch Big Blocks. It's built for applications requiring a compression ratio of 11.5:1 or higher and is well-suited for use with tunnel ram intake manifolds. This camshaft fits a wide range of Chevrolet vehicles originally equipped with flat tappet camshafts, including models like the 1967-1975 Chevrolet Impala, 1967-1972 Chevrolet Camaro, and 1967-1974 Chevrolet Corvette.

The CB 320B-10 features a 280-degree intake and 286-degree exhaust duration, providing a noticeable increase in performance over stock camshafts. Its solid lifter design means it requires more frequent valve lash adjustments compared to hydraulic lifters, but it's known for its durability and ability to perform under demanding conditions. This camshaft is a well-built component for those looking to enhance their Big Block engine's power output, especially in marine or performance street applications.

Please note that this camshaft is not CARB approved and cannot be shipped to California. Also, be aware that 1965-1966 396 Big Block Chevrolet engines with an oiling groove in the rear journal are not compatible with this specific camshaft. If your engine has this feature, please contact us for assistance finding the correct part.