COMP Cams Camshaft CB Nx 274H-13

This COMP Cams 274H-13 camshaft is designed for Chevrolet Big Block engines, specifically the 396 to 454 cubic inch displacements. It's a hydraulic flat tappet camshaft, meaning it uses hydraulic lifters to maintain zero valve lash automatically, and it's intended for engines that originally came with a flat tappet setup. This camshaft is a popular choice when you're looking to get more performance out of your big block, especially if you're planning on using nitrous oxide, as indicated by the 'Nx' in its name.

The camshaft features a 230 degree intake duration and a 244 degree exhaust duration at 0.050 inch lift, with a 113-degree lobe separation angle. These specs are chosen to provide a noticeable improvement in power, particularly in the mid-range and upper RPMs, making it well-suited for applications where you want a stronger pull. It's a well-built component from COMP Cams, a well-known name in performance engine parts, designed to handle the demands of a performance big block.

Keep in mind that this camshaft is not CARB approved and cannot be shipped to California. Also, if your 1965-66 396 Big Block has an oiling groove in the rear journal, this specific part number will not fit. For those specific early models, you'll need to contact us to arrange for a camshaft with that oiling groove.