

Specifications
- Brand
- COMP Cams
- Part #
- 11-702-9
- UPC
- 036584690023

COMP Cams Camshaft CB 306A-R10
$542.96
Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.
COMP Cams CB 306A-R10 solid roller camshaft for Chevrolet Big Block 396-454 engines. Ideal for marine, mud race, and bracket racing applications.
Key Features
- Fits a wide range of Chevrolet Big Block 396-454 engines originally equipped with flat tappet camshafts.
- Solid roller lifter design for improved valve lift and duration.
- Cam duration is 270 degrees intake and 280 degrees exhaust.
- Designed for marine, mud race, and bracket racing applications.
- Requires 11.5:1 or higher compression ratio.
- Intended for use in 454 cubic inch or larger engines.
⚠️ 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
Product Details
This COMP Cams CB 306A-R10 camshaft features a 270/280 degree duration split with a solid roller design, specifically intended for high-performance applications like marine use, mud racing, and bracket racing. It's built to work with Chevrolet Big Block engines of 454 cubic inches or larger, requiring a minimum of 11.5:1 compression. This camshaft is designed to be easy on other engine components while delivering improved performance in demanding environments.
The solid roller lifter design means you get more aggressive valve lift and duration compared to flat tappet cams, allowing for better airflow and power. This particular grind, the CB 306A-R10, is a popular choice for hydro applications with a B impeller, providing the necessary torque and RPM range for boats. It's also well-suited for bracket racing where consistent performance and durability are key. COMP Cams has engineered this camshaft to handle the stresses of these types of motorsports, making it a solid option for serious builders.
When installing this camshaft, remember it's designed for engines originally equipped with flat tappet camshafts, but you'll need to upgrade to solid roller lifters and potentially valve springs to match. It's intended for use in engines 454 cubic inches and larger, and works best with 11.5:1 or higher compression ratios. This camshaft fits a wide range of Chevrolet vehicles, including popular models like the 1967-1975 Chevrolet Bel Air, 1967-1972 Chevrolet Chevelle, and 1967-1974 Chevrolet Corvette, among many others.
Specifications
- Brand
- COMP Cams
- Manufacturer Part #
- 11-702-9
- UPC
- 036584690023
Frequently Asked Questions
You Might Also Like
Similar products from the same category
COMP Cams Camshaft CB 306A-R10
