SBC Roller Rocker Arms 1.5/1.6 Ratio 7/16 Stud

The Scorpion Performance SBC Roller Rocker Arms 1.5/1.6 Ratio 7/16 Stud are purpose-built for small-block Chevy engine builders and performance mechanics seeking maximum valve lift and durability. These race-series roller rockers replace traditional stamped steel arms, delivering the mechanical advantage needed for high-RPM applications, forced induction builds, and competition engines where valve actuation reliability is non-negotiable. A complete set of 16 arms ensures both intake and exhaust sides receive matched, precision-engineered components.

Each arm features a full roller design that reduces friction at the pushrod and rocker tip contact points, translating to faster valve opening, extended valve events, and improved cylinder head flow characteristics. The dual-ratio configuration (1.5 and 1.6) allows builders to optimize intake and exhaust rocker arm geometry independently, maximizing valve duration without sacrificing consistency or wear patterns. Constructed from lightweight aluminum and finished in hard-anodized blue, these rockers handle extreme valve spring pressures while maintaining tight tolerances; the 7/16-inch stud mount provides secure, repeatable fastening that won't loosen under sustained high-load conditions.

Builders upgrading to high-lift camshafts, aggressive valve springs, or nitrous/turbo applications rely on these rockers to eliminate deflection and prevent valve train failure at peak boost or RPM. Installation requires compatible 7/16-inch stud-mount pedestals and proper pushrod geometry verification; alignment and pre-load are critical for longevity. Whether you're assembling a street stroker, circle-track engine, or dedicated drag motor, Scorpion's race-series construction ensures consistent rocker arm geometry lap after lap or pass after pass.