Manley Mitsubishi 4G63/4G64 7 Bolt 4340 Billet 94mm Stroke Turbo Tuff Series Crankshaft

For High Horsepower/High Boosted Applications, explore our fully machined "Turbo Tuff Series" billet cranks, available for Mitsubishi 4G63/4G64 and Subaru EJ20/EJ25 engines.

• Lightweight Design, 4340 Billet Material: Manufactured from 4340 Turbo-Tuff Billet material, ensuring durability and performance. Counterweights are fully knife edged to ensure precise balance and stability.


• Increase Displacement with a Stroker Crankshaft: Featuring an increased 94mm stroke provides a 9.3% increase over the stock stroke offering more displacement and more power.


• Rigorous Quality Assurance: Each crankshaft undergoes stress relief, shot peening, and 100% magnafluxing to meet our stringent quality standards.


• Enhanced Strength: A multi-step heat treatment process and nitriding enhance the crankshafts' strength and longevity.