Cast Piston Set, 81mm Bore, 10:1 CR, 1.8L 8V

A 10:1 compression piston originally used in the Golf 2 GTI (RD engine). It is recommended that octane booster, higher grade fuel than pump gas, or ultimately a knock-sensor ignition be used with any compression ratio over 9.5:1 in an early VW 8V engine. For use with stock 86.4mm crank stroke & 144mm rod length. Not suited for forced induction or nitrous applications. Imported from Germany.Prices include pistons, rings, wrist pins and clips.Note: Oversize pistons require boring the cylinder block.