What is the primary application for this camshaft?

This COMP Cams camshaft is specifically designed for drag racing applications on Chevrolet Big Block engines ranging from 396 to 454 cubic inches. It's intended for engines that originally came with flat tappet camshafts and are being built for maximum performance.

What specific engine years or configurations are NOT compatible with this camshaft?

This camshaft is not compatible with 1965-1966 Chevrolet 396 cubic inch engines that feature an oiling groove in the rear journal. For those specific early models, a different camshaft is required.

What other components are recommended for installing this solid roller camshaft?

To properly install this solid roller camshaft, it is recommended to use compatible solid roller lifters, valve springs, and pushrods. Ensuring these components match the camshaft's specifications is crucial for optimal performance and valvetrain durability.

COMP Cams Solid Roller Camshaft CB 322Rxh-18 for BBC

Name: COMP Cams Camshaft CB 322Rxh-18
Brand: COMP Cams
Price: 604.45 USD
Availability: InStock

COMP Cams Camshaft CB 322Rxh-18

$604.45

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COMP Cams CB 322Rxh-18 solid roller camshaft for Chevrolet Big Block 396-454 engines. Designed for drag racing performance.

Key Features

Fits Chevrolet Big Block 396-454 engines originally equipped with flat tappet camshafts.
Solid roller camshaft design for aggressive performance.
Intake duration of 292 degrees and exhaust duration of 320 degrees at .050 lift.
118-degree lobe separation angle for optimized power delivery.
Designed for drag racing applications.
Not compatible with 1965-66 396 engines featuring an oiling groove in the rear journal.

⚠️ 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-focused Chevrolet Big Block engine, this COMP Cams CB 322Rxh-18 solid roller camshaft is a solid option. It's designed for 396 to 454 cubic inch engines originally equipped with flat tappet camshafts, offering a 292-degree intake and 320-degree exhaust duration at .050 lift. This camshaft is intended for serious performance applications where maximum power output is the goal.

This camshaft features a solid roller design, which allows for more aggressive lobe profiles and higher lift compared to hydraulic flat tappet or roller setups. This translates to better airflow and more efficient cylinder filling, especially at higher RPMs. The specific lobe separation angle of 118 degrees is chosen to work well with the Big Block V8 architecture, helping to optimize power delivery and throttle response for racing conditions. It's important to note that this camshaft is not compatible with 1965-66 396 engines that have an oiling groove in the rear journal; for those specific applications, a different camshaft is required.

When installing this camshaft, ensure you have the appropriate valve springs, lifters, and pushrods to match its solid roller design and lift profile. Proper setup is crucial for achieving the intended performance gains and ensuring the longevity of your engine's valvetrain. This camshaft fits a wide range of Chevrolet vehicles from the mid-60s through the mid-90s, including popular models like the Chevelle, Impala, and C10 pickup trucks, when equipped with the correct Big Block engine.