COMP Cams Camshaft CS 296B-R4

This COMP Cams CS 296B-R4 solid roller camshaft is built with a 260/266 degree duration at .050 inch lift, a common specification for oval track racing where quick response and strong mid-range power are crucial. It's designed for Chevrolet GEN 1 Small Block engines, covering a wide range of displacements from 262 to 400 cubic inches. This camshaft is optimized for use with a melanized or nitrided distributor gear to ensure proper wear and longevity; using cast or steel gears without these surface treatments will void the warranty.

The solid roller design means it uses roller lifters, which reduce friction compared to flat tappet designs, allowing for more aggressive cam profiles and higher RPM operation. This particular camshaft is intended for engines that do not have a factory roller camshaft setup, typically pre-1985 models, though some trucks and SUVs retained flat tappet cams into the mid-90s. It's important to verify your engine's configuration by removing the intake or timing cover if you're unsure about its factory roller status. Early 1955-1957 Chevrolet 265 engines require a specific oiling groove on the rear journal, and this particular part number does not include that feature; please contact us if your application requires that specific oiling provision.

This camshaft is a popular choice for builders looking to extract more performance from their classic Small Block Chevy. While it fits a broad spectrum of GEN 1 Small Blocks, it's crucial to confirm your specific engine's requirements, especially regarding the distributor gear and the rear journal oiling groove for very early models. It is not compatible with LT1/LT4 or LS-based engines.