COMP Cams Camshaft Kit CB Nx298HR-13

If you're looking to add serious power to your Chevrolet Big Block 396-454 engine, this COMP Cams Nitrous HP Hydraulic Roller Cam Kit is a solid choice. This kit is specifically designed for applications using a nitrous system of 200+ horsepower, a 671 or larger supercharger, or high compression ratios with a healthy stall converter. It's built to handle demanding setups and extract maximum performance from your engine.

This kit includes everything you need to get started: the camshaft itself, a set of hydraulic roller lifters, a complete timing chain set for precise valve timing, assembly lube to ensure proper break-in, and decals to show off your performance upgrade. The camshaft features a 242-degree intake and 254-degree exhaust duration at .050 lift, with a .550/.550 lift profile, making it well-suited for high-RPM powerbands and aggressive nitrous or boosted applications. It's designed to work with engines originally equipped with flat tappet camshafts, making the conversion to a hydraulic roller setup straightforward.

This kit is a comprehensive package for builders aiming for significant horsepower increases. It's recommended for use with a minimum of 9.5:1 compression and a torque converter with at least a 2800 RPM stall speed to take full advantage of the camshaft's aggressive profile. While this kit is not CARB approved and cannot be shipped to California, it offers a direct path to enhanced performance for many Chevrolet applications, including popular models like the Chevelle, Camaro, and Impala from the late 60s through the mid-70s.