PRW 0335001-OS Small Block Chevy Pro Series Aluminum Rocker Arms

PRW Pro Series Aluminum Rocker Arms - Chevrolet 262-400 1955-86, 1.5 Ratio - 3/8" Stud. Includes PRW RockerLocs. (Guide Plates Required) 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. Maximum Spring Diameter (in.): 1.550 in. Benefits/Characteristics Rated at 750 lbs. open spring pressure PRW RockerLocs included Internal Oiling system for long lasting performance Wide assortment of ratios to suit almost any cam profile Features full complement friction reducing needle bearings