SBC Ultra Gold R/A's - 1.5 Ratio 3/8 Stud

The SBC Ultra Gold R/A's - 1.5 Ratio 3/8 Stud from COMP CAMS represents a precision-engineered rocker arm assembly built for serious small-block Chevrolet performance builds. These aluminum roller rocker arms are purpose-designed for builders and mechanics who demand reliable valve actuation under high-RPM conditions and aggressive cam profiles. Whether you're building a street performer, weekend bracket racer, or full-race engine, Ultra Gold rocker arms deliver the durability and accuracy needed to keep your valvetrain synchronized and responsive across the entire power band.

The 1.5 rocker ratio geometry provides mechanical advantage over the cam lobe, translating smaller lobe lift into greater valve travel for improved cylinder breathing and scavenging efficiency. Ultra Gold construction combines high-strength aluminum with precision roller bearings, minimizing friction losses and reducing parasitic drag on the crankshaft—critical factors when every horsepower matters. The 3/8 stud diameter offers robust clamping force and superior vibration damping compared to lighter stud configurations, ensuring consistent rocker-to-valve contact under boost, nitrous, or high-lift camshaft scenarios. COMP CAMS' manufacturing tolerance and hardened steel roller followers mean repeatable performance lap after lap without wear-induced valvetrain noise or slop.

These rocker arms suit any SBC application from 265 to 400 cubic inches, making them ideal for engine builders transitioning from stock or intermediate valvetrain components to a serious performance setup. Installation requires compatible 3/8 studs, guideplates, and pushrod geometry validation—a competent mechanic should verify pushrod length and rocker geometry to avoid binding or excessive angle at full lift. The set weighs 7.87 lbs and fits within a compact envelope, allowing seamless integration into tight engine compartments. Whether you're freshening a crate engine or maximizing output from a vintage small-block, these Ultra Gold rocker arms deliver the precision and longevity that separates professional builds from DIY compromises.