Hydraulic Roller Cam - SBC XR276HR-12

The Hydraulic Roller Cam - SBC XR276HR-12 from COMP CAMS is a purpose-built performance camshaft engineered for small-block Chevrolet engines from 1992–1997 that demand responsive, high-RPM capability without sacrificing street-friendly operation. This Xtreme Energy hydraulic roller cam delivers the aggressive valve timing and lift needed for serious horsepower gains while maintaining the reliability and ease of installation that modern engine builders expect. Whether upgrading a stock LT-series engine or complementing a mild performance build, this camshaft bridges the gap between daily usability and track-ready performance.

Featuring 0.503-inch intake and 0.510-inch exhaust valve lift with 276/281 degrees of duration, the SBC XR276HR-12 operates across an 1800–5800 RPM band, making it ideal for engines seeking mid-range torque response and top-end power. The 112-degree lobe separation angle (LSA) promotes efficient scavenging and helps maintain stable idle quality, a hallmark of COMP CAMS' Xtreme Energy line. The hydraulic roller design eliminates the need for adjustable rocker arms and reduces friction compared to flat-tappet designs, translating to improved efficiency and cooler running temperatures. Precision-ground lobes and superior metallurgy ensure consistent valve event repeatability and extended component life.

This camshaft is engineered specifically for GM LT-series engines and works seamlessly with OEM or aftermarket hydraulic roller valve trains. Installation requires standard camshaft removal and installation procedures; no special tools or exotic tuning adjustments are necessary. Builders working with carbureted, fuel-injected, or supercharged small-block platforms will benefit from the broad powerband and compatibility with modern cylinder head designs. For serious street applications, weekend racing, or high-output restorations, the Hydraulic Roller Cam - SBC XR276HR-12 delivers proven COMP CAMS engineering and performance.