COMP Cams Camshaft CB XM 296HR-12

This COMP Cams Xtreme Marine camshaft kit includes the camshaft itself. It's a hydraulic roller camshaft designed for Chevrolet Big Block engines, specifically the 396 to 454 cubic inch displacements. This camshaft is optimized for performance use, making it a solid choice for applications like jet boats with A or B impellers in bracket racing or general performance driving.

The camshaft features a 242-degree intake duration and a 248-degree exhaust duration at .050 inch lift, with a .558 inch intake lift and .578 inch exhaust lift. It utilizes a 112-degree lobe separation angle. This design is intended to work with a Melanized or Nitrided distributor gear; using cast or steel gears without similar surface treatments will void the warranty. It's important to ensure your engine was originally equipped with a flat tappet camshaft, as this hydraulic roller camshaft is not a direct replacement for all factory configurations, especially early BBC models with specific oiling groove requirements.

This camshaft fits a wide range of Chevrolet vehicles from the late 1960s through the mid-1990s, including popular models like the Chevrolet Impala, Chevelle, and C10 Pickup. Always refer to the detailed fitment guide to confirm compatibility with your specific vehicle and engine configuration. Proper installation and the correct distributor gear are critical for performance and warranty coverage.