Curb Hoppers0My CartDSS RacingDSS Piston E Series Forged 4.030"Bore 5/64x5/64x3/16"Ring Grooves Minus 3cc x8Listing ID: 1019694UPC: 842140100796Manufacturer Part Number: 8720-4030Reference Part Number(s): DSS8720-4030Out Of StockBrand NewCopyright (C) 2019-2023 Initial Holdings LLC dba Curb Hoppers. All Rights Reserved.