What valvetrain components are needed for this solid roller camshaft?

This solid roller camshaft requires compatible solid roller lifters, pushrods, and valve springs. It is crucial to ensure all valvetrain components are designed to work with a solid roller profile to prevent damage and ensure optimal performance.

What is the benefit of the 4/7 swap design?

The 4/7 swap design alters the firing order of the engine. This can lead to improved exhaust scavenging in the cylinder heads and can also help reduce stress on the valve train by distributing the load differently.

Is this camshaft suitable for street use?

This camshaft is specifically designed for drag racing applications and features aggressive lift and duration numbers. While it may function on the street, its performance characteristics are optimized for high-RPM, wide-open throttle use, and it is not CARB approved for street legality in California.

COMP Cams Solid Roller Camshaft 11-755-14 for Chevy Big Bloc

Name: COMP Cams Camshaft CB 47S 322Rxh-18
Brand: COMP Cams
Price: 575.19 USD
Availability: InStock

COMP Cams Camshaft CB 47S 322Rxh-18

$575.19

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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 CB 47S 322Rxh-18 solid roller camshaft for Chevy Big Block 396-454 engines. Designed for drag racing.

Key Features

Fits Chevrolet Big Block 396-454 engines originally equipped with flat tappet camshafts.
Solid roller camshaft design for reduced friction and higher RPM capability.
Features a 4/7 swap firing order for improved exhaust scavenging and valve train stress reduction.
Intake duration is 292 degrees and exhaust duration is 320 degrees.
Lobe separation angle is 118 degrees.
Designed for drag racing 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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Will this fit your vehicle?

Product Details

If you're building a big block Chevrolet for serious drag strip duty, a camshaft like this COMP Cams CB 47S 322Rxh-18 solid roller is a critical piece of the puzzle. This cam is specifically tuned for the 396 to 454 cubic inch engines, aiming to maximize power output for racing applications. It features a 4/7 swap design, which helps improve exhaust scavenging and can reduce valve train stress by altering the firing order. This is a solid roller camshaft, meaning it uses roller lifters for reduced friction and higher RPM potential compared to flat tappet designs.

The specifications for this cam are a 292-degree intake duration and a 320-degree exhaust duration, with a 118-degree lobe separation angle. These numbers indicate a very aggressive profile, intended for engines that will be operating at high RPMs and require significant airflow. It's designed to work with Chevrolet Big Block engines originally equipped with flat tappet camshafts, but you'll need to ensure your valvetrain components, like lifters, pushrods, and valve springs, are compatible with a solid roller setup. This camshaft is a popular choice for drag racers looking to extract maximum performance from their big block Chevy.

Because this is a high-performance racing camshaft, it's important to note that it is not CARB approved and cannot be shipped to California. Ensure your engine build is set up to handle the demands of a solid roller camshaft, including proper oiling and valvetrain geometry. This COMP Cams camshaft is a well-built component for those serious about drag racing performance.