SBC Xtreme Hyd. Roller Cam XR282HR

The SBC Xtreme Hyd. Roller Cam XR282HR from COMP CAMS is a hydraulic roller camshaft engineered for small-block Chevrolet engines seeking aggressive street and strip performance. This cam is designed for builders who demand increased lift, extended duration, and optimized valve events without sacrificing the reliability of hydraulic operation. Whether you're building a budget-friendly street beast or preparing for weekend bracket racing, the XR282HR delivers the cylinder head velocity and combustion chamber scavenging needed for real-world horsepower gains.

COMP CAMS' roller design eliminates friction losses inherent in flat-tappet cams, allowing for steeper ramp rates and higher sustained lifts across the entire RPM band. The XR282HR utilizes a durable steel core with precision-ground lobes and a hardened roller follower interface, ensuring consistent valve timing through thousands of heat cycles. The hydraulic lifter design automatically compensates for thermal expansion and component wear, reducing the need for constant valve adjustment while maintaining tight lash control—a critical advantage in carbureted or naturally aspirated builds where reliability matters as much as peak power.

This camshaft is ideal for SBC applications including 350, 383, and 406 builds running conventional pushrod valve trains with hydraulic roller lifters. Installation requires proper timing gear alignment, a quality roller timing chain, and verification of piston-to-valve clearance—especially critical for achieving optimal performance.