COMP Cams Camshaft CB 306B-R10

This is the COMP Cams CB 306B-R10 Drag Race Camshaft, designed for Chevrolet Big Block engines like the 396, 427, and 454 cubic inch displacements. It's built for bracket racing applications, particularly with heavier cars and higher compression ratios (12:1 and up), aiming to improve your engine's performance on the track.

This camshaft is a solid roller type, featuring a 270-degree intake duration and 280-degree exhaust duration at 0.050-inch lift. It's specifically optimized for use with a Melanized or Nitrided distributor gear. Using cast or steel gears without these surface treatments can cause premature wear and will void the warranty, so it's important to pair it with the correct distributor gear for reliable operation and to maintain your warranty. This camshaft is intended for Chevrolet GEN IV Big Block engines that originally came with flat tappet camshafts, fitting a wide range of vehicles from the late 1960s through the mid-1970s, including models like the Chevrolet Impala, Chevelle, and Camaro.

For those building a 468 to 496 cubic inch engine for bracket racing, this camshaft offers a solid foundation. Remember to check your specific engine's rear journal for an oiling groove, as 1965-66 396 models with this feature require a different camshaft. If your engine has this groove, please contact us directly to ensure you get the correct part for your build.