BMW 2.0 8V 2002 11.3:1 Fast Road M10B20 Wossner Forged Pistons Set

Compression Ratio: 11.3:1 

89mm K9508DA, 89.2mm K9508D020, 89.5mm K9508D050, 89.75mm K9508D075, 90mm K9508D100 Bore Pistons

Compression Height: 42.7mm

Dome / Bowl Volume: 28.8cc

Stroke: 80mm

Engine: M10B20 1968-1979

You are buying a full set of 4 Pistons with Rings, Gudgeon pins & Circlips. 

PLEASE CONTACT US FOR SIZE AVAILABILITY / DELIVERY TIME FRAME

Wössner are regarded by Europe’s leading motor sport engine builders as being the piston of choice when building an engine not only to perform, but to withstand the stresses and duress’s of competition life. Wössner pistons feature a unique PTFE coating on the skirts and a grade of 4032 Alloy (T6) which allows the engine builder to run a closer piston to bore tolerance then he might do on another make of piston. This helps remove the slapping noise during cold start, common place among engines running forged pistons due to larger then OE bore clearances. The crowns of the pistons are also polished to better resist detonation on a high performance engine. Polishing allows a more even spread of heat inside the chamber which will help prevent “hot spots” on piston crowns. Price includes all piston rings and gudgeon pins.