Auto Barn
Est. 1957
1 / 2
COMP Cams
COMP Cams

COMP Cams Camshaft Kit CB 306S

$752.47

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 306S camshaft kit for Chevrolet Big Block engines. Includes camshaft, lifters, springs, and more for improved performance.

Key Features

  • Fits Chevrolet Big Block 396-454 engines originally equipped with flat tappet camshafts.
  • Complete kit includes camshaft, lifters, valve springs, retainers, valve locks, and valve stem seals.
  • Also includes a timing chain set and assembly lube for flat tappet applications.
  • Designed for bracket racing and Pro Street applications with 10.5:1+ compression.
  • Recommended for use with a 3500+ stall torque converter or 4-speed transmission and 4.10 or lower rear gears.
  • Features a radical idle and is suited for tunnel ram intake manifolds.

⚠️ 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

Secure CheckoutFast Shipping631-982-0042
About this part

Product Details

If you're building a serious performance engine for bracket racing or a Pro Street application, this COMP Cams Camshaft Kit CB 306S is a solid choice. This kit is designed for Chevrolet Big Block engines originally equipped with flat tappet camshafts, like those found in many classic Chevelles, Camaros, and Corvettes from the late 60s through the mid-70s. It's a complete package aimed at giving your engine a noticeable performance boost, especially when paired with higher compression ratios and appropriate gearing.

This isn't just a camshaft; it's a full kit to get your engine running right. Inside, you'll find the CB 306S solid flat tappet camshaft itself, along with matching lifters, valve springs, retainers, valve locks, and valve stem seals. To ensure proper installation and break-in, the kit also includes a timing chain set, assembly lube specifically for flat tappet applications, and detailed instructions. This comprehensive approach helps ensure all the valvetrain components work together harmoniously for improved performance and reliability.

The CB 306S camshaft is intended for aggressive builds, suggesting a radical idle and strong performance in the mid to upper RPM range. It's recommended for engines with 10.5:1 or higher compression, and when used in a jet boat with a B impeller or for bracket racing, it pairs well with a 3500+ stall torque converter or a 4-speed manual transmission, along with 4.10 or lower gearing. This kit is a significant upgrade for those looking to extract more power from their Big Block Chevy.

Specifications

Brand
COMP Cams
Manufacturer Part #
K11-220-4
UPC
036584460183

Frequently Asked Questions

COMP Cams Camshaft Kit CB 306S

$752.47