Engine Roller Rocker Arm Set 1.6 Ratio 3/8 Stud Extruded Type Fits SB Chevy Proform Socket Set It includes a billet aluminum

It includes a billet aluminum material 1

not rebuilt

Even a little tire pressure change can dramatically affect you on race day

375 Inch Harmonic Balancer Width

Uses a Drill and a 5/16 Inch Drill Bit - Not Included - To Elongate Pushrod Slots

Engine Roller Rocker Arm Set 1.6 Ratio 3/8 Stud Extruded Type Fits SB Chevy Proform Socket Set It includes a billet aluminumRid your engine of internal friction with roller tipped rocker arms. The race proven full needle bearing, fulcrum and roller tip not only unleash horsepower, they also lengthen valve train component life and reduce wear and tear on valve stem tips. Precision machined to insure consistency and ratio accuracy. 16 extruded aluminum roller rockers and 16 poly locks. Sold as one set. Product Details: Engine Roller Rocker Arm Set 1. 6 Ratio With 3 8 Inch