COMP Cams Camshaft CS Nx274H-13

This is the COMP Cams Xtreme Energy CS Nx274H-13 camshaft, designed for Chevrolet Small Block V8 engines from 262 to 400 cubic inches. If you're building a street/strip machine and looking to significantly increase torque and high-RPM horsepower, this camshaft is a solid option. It's engineered to work with nitrous oxide kits up to 125 horsepower or a medium blower, and it pairs well with a torque converter with a stall speed of 2500 RPM or higher. Expect a noticeable improvement in acceleration and throttle response thanks to its advanced intake valve opening and closing ramps.

The design of this camshaft focuses on maximizing the area under the lift curve for both intake and exhaust strokes. This means the valves are opening and closing more quickly and efficiently, which helps to increase cylinder pressure for better torque and allows for a more complete purge of exhaust gases, ultimately leading to more horsepower. It's suitable for use with either a carburetor or a tunable fuel injection system. Be aware that this camshaft is intended for hydraulic flat tappet lifters and will produce a rougher idle, which is typical for performance cams of this nature.

This camshaft fits a wide range of Chevrolet Small Block applications, including many popular models like the Chevrolet Camaro, Corvette, and C10 trucks from the 1980s and early 1990s. It's important to verify your specific engine's configuration, as GM transitioned to roller camshafts in many engines starting in the mid-80s. If your block is set up for flat tappet lifters, this camshaft is a direct fit. For those with factory roller provisions, COMP Cams offers specific hydraulic roller lifter kits and cams.