BBC Hydraulic Roller Cam 304HR

The COMP Cams BBC Hydraulic Roller Cam 304HR is designed specifically for big-block Chevrolet platforms, providing reliable mid-range performance gains without compromising street manners or engine longevity. This hydraulic roller cam is an ideal bolt-in upgrade for builders and enthusiasts looking to enhance mid-range torque while maintaining compatibility with stock or mildly modified induction systems.

The 304HR profile balances aggressive valve events with operational stability, making it suitable for street trucks, muscle cars, and weekend warriors who prioritize both driveability and power. The hydraulic roller technology eliminates the need for manual valve lash adjustment and reduces valve train wear compared to solid lifter designs, thanks to roller followers that minimize friction and contact pressure on the camshaft lobe.

This camshaft is particularly beneficial for big-block Chevrolet engines (BBC 454, 427, 396, and similar displacements) equipped with hydraulic roller lifter systems and factory or performance intake manifolds. Its moderate lift and duration specifications prevent excessive spring pressures and rocker arm geometry conflicts, allowing for the use of stock or near-stock valve springs, making it an excellent choice for cost-conscious builds and restorations.