Wossner Ford Sierra Cosworth 91MM forged pistons 8.0: 1 WS-K9027D020

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. The result is less clearance between the cylinder and a lighter piston. Set: Pistons, rings, pins and pin protectors Product detailed specification Bore size 91.00mm Stroke 77.00mm Wossner compression ratio (CR) 8.0: 1 Rod Lgth. & nbsp