Engine Roller Rocker Arm Set 1.5 Ratio 3/8 Stud Self Aligning Fits SB Chevy Proform Engine Rocker Arm 040 Inch Piston Bore

040 Inch Piston Bore

18 Inches Long

230 Inch Bore Sizes

800 Inch Valve Springs

Engine Roller Rocker Arm Set 1.5 Ratio 3/8 Stud Self Aligning Fits SB Chevy Proform Engine Rocker Arm 040 Inch Piston BoreFits Chevy small block engines with center hold down valve covers. Rid 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.