Piston Set of 8Fits Gm Chev 5.0L 305 Dish TopSize = .030 OversizedBore Diameter (STD)AlloyTop Ring2nd RingOil RingPin DiameterCompression Height94.89mm (3.736in)Standard5/64in5/64in3/16in0.92751.540Need Rings? To check our inventory, please Click Here for Cast or Click Here for Moly