MOLNAR TECHNOLOGIES BBC Forged Crank 4.250 Stroke 454 mains 6.385 454-4250DC6F-OPS-6385

MOLNAR TECHNOLOGIES Crankshaft - 4.250 in Stroke - Internal Balance - Forged Steel - 1-Piece Seal - 454 Mains - Big Block Chevy - Each.
W/1-PIECE REAR MAIN SEAL