Wossner Mini Cooper S 77MM 8.3: 1 forged pistons WS-K9123DA

Wossner 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. This results in a smaller clearance between the cylinder and a lighter piston. Set: Pistons, rings, pins and pin protectors Product detailed specification Bore size 77.00mm Stroke 85.50mm Wossner compression ratio (CR) 8.3: 1 Rod Lgth. 131.5mm Dome volume (CC) & nbsp