GOODSPEED Manley Crankshafts

Manley Turbo Tuff Billet 4340 crankshafts are the perfect crank to complete a stout bottom end build. Each crankshaft is put through a multi-step heat treatment process and nitrided (hardened) for maximum strength. The crankshaft is then stress relieved, shot peened, and magnafluxed (stress tested). The center, crank pin and counterweights are gun drilled for reduced weight. Each Turbo Tuff crankshaft features knife-edged counterweights for proper balance and lowest rotational mass.
GOODSPEED Manley Crankshafts

  • 4340 Billet
  • Multi-step heat treatment process
  • Stress Relieved and Shot Peened
  • Nitrided
  • 100% Magnafluxed
  • Knife-edged counterweights
  • Center gun drilled
  • Gun drilled crank pin and counterweights
  • 75 mm
  • 79mm
  • 83mm


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