What is the main difference between this solid roller camshaft and a flat tappet camshaft?

A solid roller camshaft uses roller lifters that reduce friction, allowing for higher lift and more aggressive valve timing compared to traditional flat tappet designs. This generally results in improved performance, especially at higher engine speeds.

Are there any specific engine year limitations for this camshaft?

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

What other components are typically needed when installing a solid roller camshaft?

Installing a solid roller camshaft usually requires matching solid roller lifters, pushrods, and potentially upgraded valve springs and retainers to handle the increased lift and valvetrain stress. It's important to ensure your entire valvetrain is compatible.

COMP Cams Solid Roller Camshaft 11-742-9

Name: COMP Cams Camshaft CB 318Rxh-16
Brand: COMP Cams
SKU: comp-cams-comp-cams-camshaft-cb-318rxh-16-t14-4390045
Price: 641.25 USD
Availability: BackOrder

COMP Cams Camshaft CB 318Rxh-16

$641.25

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 318Rxh-16 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 improved valve lift and performance.
Features a 285 degree intake and 312 degree exhaust duration.
Designed for drag racing applications.
COMP Cams part number 11-742-9.

⚠️ 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 CB 318Rxh-16 solid roller camshaft is designed for Chevrolet Big Block engines, specifically the 396 to 454 cubic inch displacements. You'll receive the camshaft itself, ready for installation into your engine. This camshaft is a popular choice for those building a drag racing setup, offering an aggressive profile for increased performance.

The CB 318Rxh-16 features a 285/312 degree duration split with a solid roller design, which allows for higher lift and more aggressive valve events compared to flat tappet cams. This translates to better airflow and more power, especially at higher RPMs. It's built for engines originally equipped with flat tappet camshafts, making it a direct upgrade for many classic Big Block Chevys. Keep in mind that some very early 396 engines (1965-66) had an oiling groove in the rear journal that this specific camshaft does not accommodate; for those applications, a different part number would be needed.

This camshaft is intended for performance builds and is not CARB approved, meaning it cannot be legally shipped to California. Ensure your engine's oiling system and valvetrain components are up to the task of handling a solid roller camshaft, as it requires specific lifters and potentially upgraded oiling to perform optimally and reliably.