Callies Magnum Crankshaft, 4.125" Stroke, Wet Sump, 8 Counterweight

CALLIES Callies
SKU #CAL-APU-31W-MG-X
Callies Magnum Crankshaft, 4.125" Stroke, Wet Sump, 58-Tooth Reluctor, 8 Counterweight
SKU CAL-APU-31W-MG-X

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All Magnum cranks feature Callies Ultra-Case heat treatment. Each Magnum crank will have gun drilled mains and fully profiled counterweights, regardless of engine type.

Features:

  • Average Weight for 4.000 in. Stroke Balanced to 1750g Bob. = 47 lbs.
  • Magnums are Sold Rough Balanced to 1700g Bob.
  • Gun Drilled Mains
  • All Rod Journals Lightened
  • Dual Linear Post Keyways
  • Stroke Availability from 2.600 in. to 4.500 in.
  • Heat Treatment = Perma Case Deep Nitride

  • Special Options:
  • Additional Post Keyways, Custom Post Drilling
  • Custom Flange Bolt & Dowel Drilling
  • 2.100, 2.000, 1.888 and 1.825 Rod Journal Diameters
  • Custom Reluctor Hub Machining or Removal
  • prop-warning
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