COMP Cams Camshaft CB Nx273HR-13

This COMP Cams camshaft features a hydraulic roller design with a 224/236 duration split and 113-degree lobe separation. It's specifically tuned for street machines running a 125+ horsepower nitrous kit, requiring a 2200+ RPM stall converter and lower rear-end gears to make the most of its performance profile. The camshaft is designed for Chevrolet Big Block engines from 396 to 454 cubic inches, originally equipped with flat tappet camshafts.

For optimal performance and to maintain warranty coverage, it's crucial to use a Melanized or Nitrided distributor gear with this camshaft. Using cast iron or steel gears without these surface treatments is not compatible and will void the warranty. This camshaft is a solid choice for those looking to significantly increase horsepower, especially when paired with a nitrous system, and it fits a wide range of Chevrolet vehicles including the 1967-1975 Bel Air, 1967-1972 Biscayne, and 1973-1974 Blazer, among many others.

When installing this camshaft, remember that it's optimized for specific supporting modifications. Ensure your engine is set up with the appropriate stall speed converter and gear ratio to match the camshaft's aggressive nature. Always refer to the manufacturer's installation instructions for detailed guidance on proper setup and the required distributor gear type.