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  5. Manley Chevrolet Big Block 4340 Non-Twist Forgings 4.250in Stroke Crankshaft
    By Manley Performance

    Manley Chevrolet Big Block 4340 Non-Twist Forgings 4.250in Stroke Crankshaft

    $1,132.99
    $1,132.98 $1,132.99
    Brand: Manley Performance
    Availability:
    SKU: MAN190140
    $1,132.99
    $1,132.98 $1,132.99
    Manley PerformanceManley Chevrolet LS Lightweight 4340 Forged 4.100in Stroke Pro Series Crankshaft
    Manley Mitsubishi 4G63/4G64 7 Bolt 4340 Billet 100mm Stroke 29.5 lbs Turbo Tuff Series Crankshaft
    Manley PerformanceManley Mitsubishi 4G63/4G64 7 Bolt 4340 Billet 100mm Stroke 29.5 lbs Turbo Tuff Series Crankshaft
    Lightweight Design, 4340 Non-Twist Forging: Our crankshafts feature a lightweight 4340 non-twist forging, ensuring durability and performance.Enhanced Strength: A multi-step heat treatment process and nitriding enhance the crankshafts' strength and longevity.Micro-Polished Journals: Large radius journals are micro-polished to reduce friction and enhance performance.Rigorous Quality Assurance: Each crankshaft undergoes stress relief, shot peening, and 100% magnafluxing to meet our stringent quality standards.