Engine Roller Rocker Arm Set 1.5 Ratio 3/8 Stud Self Aligning Fits SB Chevy Proform Engine Rocker Arm 230 Inch Bore Sizes

230 Inch Bore Sizes

This Tool Is An Affordable and Portable Way To Test Springs

And One Wrench Fits AN Fitting Sizes -10AN Through -20AN

040 Inch Piston Bore

Engine Roller Rocker Arm Set 1.5 Ratio 3/8 Stud Self Aligning Fits SB Chevy Proform Engine Rocker Arm 230 Inch Bore SizesFits 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.