Callies APO31W-MG58X - 4.000" Stroke Magnum LS Crankshaft with 58x Reluctor

Stroke 4.000" Main 2.559" Pins 2.1" Reluctor 58x Standard Features: • Magnums are Sold Counterweight Prepped for a 1785 Bobweight • Gun Drilled Mains • All Rod Journals Lightened • Dual Linear Post Keyways • Stroke Availability from 2.600 in. to 4.600 in. • Heat Treatment = Ultra Case Deep Nitride • Average Weight for 4.000 in. Stroke Balanced to 1750g Bob = 47 lbs