May have some minor surface imperfections but still fully functional. Wiseco Piston Part # (4725P4) 3.538.040 Overbore 10:1 Compression Ratio Rear Cylinder. Pro-lite pistons feature new forging design for maximum heat transfer. Computer engineered piston skirt profiles stabilize the piston in the cylinder bore providing minimal cylinder wall friction with peak horsepower and maximum torque. All new ring land diameters combined with anti-detonation grooves create a turbulent flow of combustible gases sealing tht compression ring to the cylinder wall eliminating ring blowby and maximizing your engine's performance and power. The item "Wiseco Piston Kit Harley Davidson EVO 1340 3.538.040 1984-1999 Rear Cylinder" is in sale since Friday, May 15, 2020. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Engines & Engine Parts\Pistons, Rings & Pistons Kits". The seller is "mrmotocross_parts" and is located in Toledo, Ohio. This item can be shipped to United States, all countries in Europe, Japan, Canada, Australia, New Zealand, Colombia, Bolivia, French guiana, Paraguay, Uruguay.