COMP Cams® Magnum Roller Rockers are the ultimate street rocker. That’s because they were designed with the serious performance enthusiast in mind. Friction-reducing roller tip design and superior ratio accuracy yield more effective valve lift. Magnum Roller Rocker Arms are built to help your engine make more power and last longer. Some features of the Magnum Roller Rocker: Ultimate street rocker arm designed with the serious performance enthusiast in mind Made from 8620 chromemoly steel, a superior material that will not flex 15 to 30 horsepower increase over conventional rocker arms Friction reducing roller tip, stiff design and precision ratios yield more effective valve lift Perfect for use in any application with less than 350 lbs. open spring pressure This listing is for a COMP Cams® Magnum Roller Rocker set/16 for Chevrolet GEN I small block V-8 engines. P/N 1412-16. These rockers are for 3/8" rocker studs and have a 1.52 ratio.
