2.250 IN. OVERALL H; 1.300 IN. LG THRU BORE; WITH INSERT TYPE BEARING; 3.558 IN. C OF ADJUSTING SCREW TO C OF TAPPTE; NON-REPLACEABLE TYPE TAPPET; 1.500 IN. LG OF THREAD ON ADJUSTING SCREW; LUBRIVATION HOLE DRILLED ON BOTTOM OF ROCKER ARM FOR BEARING AND END OF TAPPET