BBC HE Roller Rocker Arm 1.7 Ratio 7/16 Stud Alm

The COMP Cams BBC HE Roller Rocker Arm with 1.7 ratio and 7/16 stud aluminum construction is a high-energy die-cast rocker engineered for big block Chevy applications requiring full roller design. This component delivers precise valve actuation with reduced friction, making it essential for builders targeting improved valve train efficiency and consistent lift characteristics across engine RPM ranges.

The 1.7 rocker ratio multiplies camshaft lift by 1.7 times, translating to increased valve opening compared to 1.5 ratio designs while maintaining stock-compatible geometry. The full roller design minimizes side loads on the pushrod and reduces wear on camshaft lobes—a critical advantage in high-RPM, high-lift applications. Aluminum construction keeps rocker mass low, supporting faster valve train speeds and reducing inertial loads that can cause valve float. The 7/16-inch stud mount provides secure, repeatable clamping to standard big block Chevy head configurations, and the die-cast manufacturing ensures dimensional consistency and strength suitable for street and competition use.

This rocker is suited for BBC engine builders upgrading from stamped steel rockers or seeking a performance edge without major cylinder head rework. The 1.7 ratio positions it between mild street builds and aggressive cam profiles, making it a versatile choice for naturally aspirated big block applications where increased valve events benefit from reduced contact stress. Each rocker is sold individually, allowing builders to purchase complete sets for their specific application requirements.

COMP Cams rockers are recognized in the engine building industry for precision manufacturing and consistent performance, with this BBC HE roller variant complementing a broad lineup of valve train components designed for small block and big block applications.