COMP Cams Camshaft CS 47S XS274S-10

This COMP Cams XS274S-10 Xtreme Energy camshaft is designed for Chevrolet Small Block engines, specifically those with flat tappet configurations. It's a solid lifter camshaft that aims to improve your engine's performance by focusing on the mid-range power band. You'll notice a difference in torque and throttle response, making it a popular choice for builds looking for that extra kick when you need it.

The 4/7 swap design is a notable feature, which helps to improve exhaust scavenging and can lead to a more efficient burn. With a duration of 236 degrees on the intake and 242 degrees on the exhaust, this cam is well-suited for engines that will be operating in the 2200+ RPM range, often requiring a stall converter to match. It's built to provide a strong mid-range pull, which translates to better acceleration and a more responsive feel when you're on the gas.

This camshaft fits a wide range of Chevrolet Gen 1 Small Blocks, including popular displacements like the 350, 400, and 327. However, it's important to verify your specific engine's configuration. It does not fit factory roller camshaft blocks from 1985 and newer, nor does it fit LS-based engines. Early 1955-1957 models also require a specific oiling groove on the rear journal, so double-check your block's details before ordering.