Mahle MS piston set for BBM 511ci applications, a complete eight-piston set for engine rebuilding. These pistons feature a 4.375in bore with a 4.250in stroke, 7.100in rod and 0.990in pin, with about -8.1cc crown volume, ~530g mass and an 11.7:1 compression ratio to maintain the intended combustion parameters.
Mahle MS Piston Set BBM 511ci 4.375in Bore 4.25in Stroke 7.1in Rod 0.990 Pin -8cc 11.7 CR Set of 8