What is the recommended stall speed for this camshaft?

This camshaft is recommended for drag racing applications with a stall speed of 5500 RPM or higher. It's designed to work best in lighter vehicles where higher RPMs are utilized.

What other components are needed for installation?

For a solid roller camshaft installation, you will typically need compatible solid roller lifters, valve springs rated for the camshaft's lift and duration, and pushrods. Always consult the manufacturer's detailed installation guide for specific component recommendations.

Does this camshaft come with a break-in procedure?

Yes, COMP Cams provides specific break-in procedures for their camshafts. It is crucial to follow these instructions carefully to ensure proper lubrication and seating of the roller components and prevent premature wear.

COMP Cams Solid Roller Camshaft 11-720-9 for Big Block Chevy

Name: COMP Cams Camshaft CB 321C-R10
Brand: COMP Cams
Price: 525.64 USD
Availability: InStock

COMP Cams Camshaft CB 321C-R10

$525.64

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 321C-R10 solid roller camshaft for Chevrolet Big Block 396-454 engines. Designed for drag racing applications.

Key Features

Fits Chevrolet Big Block 396-454 engines originally equipped with flat tappet camshafts.
Solid roller camshaft profile designed for drag racing applications.
Features 284 degrees intake duration and 288 degrees exhaust duration.
Offers a .720 inch lift on both intake and exhaust.
Recommended for light cars with 5500+ RPM stall speed converters and 454+ cubic inch displacement.
Not CARB approved and cannot be shipped to California.

⚠️ 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 car for your Chevrolet Big Block, this COMP Cams CB 321C-R10 solid roller camshaft is a strong contender. It's specifically tuned for drag racing, aiming for peak performance in lighter vehicles with a 5500+ RPM stall speed converter and engines 454 cubic inches and larger. This camshaft is designed to work with Chevrolet GEN IV Big Block engines that originally came with flat tappet camshafts, offering an improved valvetrain setup for serious competition.

This camshaft features a 284 degrees of intake duration and 288 degrees of exhaust duration, with a .720 lift on both intake and exhaust. The solid roller design means it's built for high RPM and aggressive lift profiles, which is crucial for drag strip success. It's a well-built component from COMP Cams, a popular name in performance engine parts, and is intended for those looking to extract maximum power from their big block Chevy. Remember that this camshaft is not CARB approved and cannot be shipped to California.

When installing a solid roller camshaft, it's important to ensure your engine is properly set up to handle the increased demands. This includes using the correct valve springs, lifters, and pushrods, as well as a compatible stall speed torque converter. Always refer to the manufacturer's installation instructions for the most accurate guidance on setup and break-in procedures to get the most out of this performance camshaft.