Rocker arms are made from forged tool steel with a 1.7 ratio and fit all .870" diameter rocker shafts. Exhaust rocker arms have .570" diameter roller tips with .275" roller pins and are equipped with pressed-in bronze bushing honed to a very precise +/-.0001 tolerance.
Rocker arms have weight reduction pockets to reduce weight but not sacrifice strength on high rpm engines with lots of valve spring pressure. Rockers use a 7/16" adjuster with a 3/8" ball and are made from H-13 tool steel then black oxide finish to give the racer the ultimate in strength and durability. Rocker arm nuts are 1/2" twelve point. Each rocker arm includes a pushrod adjuster with adjuster nut.
Rocker arms are sold each.