PRW Pro Series Aluminum Rocker Arms - Chevrolet 262-400 1955-86, 1.6 Ratio 7/16" Stud for AFR 227, 235 and other aftermarket cylinder heads with 8 standard design exhaust rockers and .050 left and right offset for the intake valves. Full roller rockers clearanced for larger springs, with precision ground needle roller trunion bearings, and CNC machined pushrod cups. Set of 16.
PRW Pro Series Aluminum Rocker Arms are used around the world by professional racers, engine builders and hot rod enthusiasts, offering outstanding power and performance advantages for street, strip, and track applications. Made from high strength 6061-T6 aluminum extrusions, each piece is precision CNC machined and finished by hand to ensure that out customers receive the very best PRW has to offer. PRW stud mount aluminum rockers are specially machined to allow for larger springs and retainers with full-cage friction reducing bearings for added durability. The nose rollers and shafts are Cr40 steel, heat-treated and hardened to minimize wear that naturally occurs between the roller tip and the valve stem.