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. Product Features:1.6 Ratio 7/16 StudExtruded Aluminum Type with Roller Needle Bearing TrunionsFits Small Block ChevyBlue Anodized FinishUse with a Max Spring Diam. of 1.400 Inches
