By taking the Original Series rocker and making it even lighter, the Diamond Series is ideal for those looking for that last bit of valvetrain efficiency and horsepower. These full roller, stud mounted rocker arms are an upgrade designed for factory Oldsmobile heads that have been converted to 7/16 studs and guide plates. Designed for mild performance rebuilds with hydraulic cams. Ideal for applications with valve cover restrictions and when using a stud girdle.
Rocker Arms, Stud Mount, Full Roller, Aluminum, 1.60 Ratio, Fits 7/16 in. Stud, Oldsmobile, Set of 16