Wiseco Mitsubishi Lancer EVO 4-9 4G63 85.5MM 9.5: 1 forged pistons US-K666M855AP

Wiseco pistons are made of the highest quality aluminum, digitally processed using high-quality technology. Each piston has an optimized piston crown to improve filling and a specially selected wall shape for each application. The result is less clearance between the cylinder and a lighter piston. Set: Pistons, rings, pins and pin protectors Product detailed specification Bore size 85.50mm Stroke 88.00mm Wiseco compression ratio (CR) 9.5: 1 Rod Lgth. 149.5mm Dome volume (CC) & nbsp