COMP Cams Camshaft CB Nx279HR-13

This COMP Cams hydraulic roller camshaft, part number 11-411-8, is built with a 230 intake and 242 exhaust duration at .050 lift, featuring a 113-degree lobe separation angle. It's designed for Chevrolet Big Block engines originally equipped with flat tappet camshafts, specifically the 396 to 454 cubic inch displacements. This camshaft is optimized for use with a Melanized or Nitrided distributor gear, which is crucial for longevity and to maintain warranty coverage; using cast or steel gears without these surface treatments will void the warranty.

This is a high-performance street camshaft intended for builds that will see a 150+ horsepower nitrous kit or a small supercharger. To get the most out of this camshaft, it's recommended to pair it with a torque converter with a 2400+ RPM stall speed and lower rear-end gears. This setup will help ensure the engine stays in its power band, especially when using nitrous or forced induction. The hydraulic roller design offers improved performance and durability over traditional flat tappet cams.

This camshaft fits a wide range of Chevrolet vehicles from the late 1960s through the mid-1970s, including popular models like the Chevrolet Impala, Chevelle, and Corvette. It's important to verify fitment for your specific application, especially regarding the rear journal oiling groove found on some 1965-66 396 engines, as this particular camshaft is not compatible with those specific models. Always refer to the manufacturer's installation instructions for proper setup and to ensure you are using the correct distributor gear.