COMP Cams Camshaft CB 304H-R10

This COMP Cams Magnum camshaft is a hydraulic roller type, designed for Chevrolet Big Block engines like the 396 and 454. It's intended for street/strip applications and requires a solid setup to perform optimally. You'll need at least 10:1 compression, a torque converter with a 3000+ stall speed, and rear end gears with a ratio of 4.10 or higher. Aftermarket intake and headers are also recommended to get the most out of this camshaft. Expect a very rough idle with this performance-oriented grind.

This camshaft is a significant upgrade for performance builds. Its specifications, with a 244-degree intake and 244-degree exhaust duration at .050 lift, are suited for maximizing power in the mid to upper RPM range. The hydraulic roller design means it's designed for reduced friction and wear compared to flat tappet cams, allowing for more aggressive lobe profiles and better performance. It's important to note that this camshaft is not CARB approved and cannot be shipped to California. Ensure your engine originally came equipped with a flat tappet camshaft, as this roller cam is not a direct replacement for factory roller setups or specific early BBC models with an oiling groove in the rear journal.

For optimal performance and longevity, ensure you have the supporting modifications in place before installation. This includes the necessary fuel delivery, ignition timing, and valvetrain components. Always refer to the manufacturer's installation instructions for proper procedure and any specific break-in requirements.