Wiseco RC884M09600 Racer's Choice 13.7:1 Compression Ratio Piston Kit Wiseco's forged pistons are tougher and more durable than cast pistons, and will stand up to the abuse that high performance motorsport applications require Piston kits contain one piston, rings, piston pin and piston pin circlips Shot-peened piston with ArmorGlide-coated skirts 9600ZVA ring set 449cc