Go up to 3.149L on your BMW N54/M54B30 with 84.5mm bore and a BC 4340 billet crank, 93.6mm stroke, Pro625+ rods (5.709" c-to-c) and custom pistons (choice of bore/compression). Note: Custom pistons are currently running 6-8 weeks, you specify desired bore/compression ratio. Features 6 bolt flywheel bolt pattern.
