BMW M135i / M235i / 335i / 435i / M2 N54 / N55 and BMW M3 F80 / M4 F8x / M2C F87 ACL Main Bearings

Manufactured in Australia from a tri-metal tin, copper and steel, this kit of 7 pairs of ACL Performance Race Series main bearings fit without modification on the crankshaft of the S55 engines fitted to the BMW M135i / M235i / 335i / 435i / M2, and S55 of M3 F80 / M4 F8x / M2C. Available in OEM thickness (Std) or 0.25" thicker (+0.25") to compensate the machining of a revised crankshaft, this complete kit will perfectly complement the configuration of the most powerful forged engines !