Part number: FCPPVW83Manufacturer: FCP EngineeringForged high performance pistons for various applications in nearly all engine types for racing and street use.Made of 4032-T6, piston skirt is molybdenum coated.Bore size: 83.50mmStroke: 92.80mm Compression ratio (CR): 13.0:1Compression height (CH): 31mmPiston pin: 21mm HD tool steel pin designed for high boost applicationVW Golf III, Passat / Seat Cordoba, Ibiza, Toledo - 2.0 16V (ABF)