JEGS Cast Steel Roller Tip Rocker Arms for Small Block Chevy Engines, 1.5 Ratio, Set of 16 G1920

Cast Steel Roller Tip Rocker Arms1955-1986 Small Block Chevy 262-4001.5 Ratio for 3/8 in, StudsUp to 0.550 in. Valve LiftIncludes:(16) Rocker Arms(16) Pivot Balls(16) Polylock Nuts with 5/8 in. Hex HeadSet of 16 Features:Cast 4340 alloy steel body for strength and durabilityRoller tip prevents valve stem and guide wearLong slot allows up to 0.550 in. valve liftHeat-treated grooved rocker pivot balls to promote oiling & prevent gallingPolylock nuts for precise valve adjustmentRated up to 350 lbs. spring pressureRockers reduce friction leading to an additional 10 to 15 horsepowerIncludes:(16) 1.5 Ratio roller tip rockers for 3/8 in. studs(16) Rocker pivot balls(16) 3/8 in.-24 thread polylock nuts with 5/8 in. hex head & 3/16 in. allen set screwsStuds not Included