Manley Mitsubishi 4G63/4G64 7 Bolt 4340 Billet 88mm Stroke Race Series CrankshaftLightweight 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. Enhanced Strength: A multi step heat treatment process and nitriding enhance the crankshafts' strength and longevity. Rigorous Quality Assurance: Each crankshaft undergoes stress relief, shot peening, and 100% magnafluxing to meet our stringent
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