Eagle billet 4340 steel crank for the Mitsubishi 4B11 is a 3.701" stroke crankshaft with knife-edged counterweights to reduce rotating mass, plus .125" fillet radiuses, a nitrided surface and micropolished finish. Intended for the most demanding applications, this billet crank emphasizes reduced rotational inertia and hardened surfaces for strength and refined operation in high-stress engines.
Eagle Mitsubishi 4B11T 4340 Billet Crankshaft