Wiseco forged pistons for BMW E30 M20B25 engines.
Characteristics:
-Stroker at 81mm.
-Compression ratio of 8.5 to 1 or 10 to 1. (The price varies depending on the compression)
-22mm bolt diameter.
-Piston diameter to choose: 84mm, 84.5mm, 85mm.
Product on request. Delivery time may vary depending on stock, consult.