Single PistonFits GM & Chevrolet 5.7L 350 Flat Top Hyper CoatedSize = .040 OversizedBore Diameter (STD)AlloyTop Ring2nd RingOil RingPin DiameterCompression Height101.60mm (4.000in)Hypereutectic5/64in5/64in3/16in0.92731.560Need Rings? To check our inventory, please Click Here for Cast or Click Here for Moly