Callies – Magnum Wet Sump Crankshaft for Gen V LT – 4.125″ – 58x Reluctor Wheel (5TU-31W-MG)

After years of service, Magnum crankshafts by Callies have established themselves as one of the most durable competition crankshafts ever produced. Magnum crankshafts are manufactured from ultra pure AISI 4340 steel. Callies then subjects this material to multiple heat treatments, resulting in a crankshaft with unsurpassed wear and strength characteristics. All Magnum cranks feature Callies Ultra-Case heat treatment. Each Magnum crank will have gun drilled mains and profiled counterweights, regardless of engine type.

* Magnums are Sold Counterweight Prepped for a 1785 Bobweight
* Gun Drilled Mains
* All Rod Journals Lightened
* Dual Linear Post Keyways
* Heat Treatment = Ultra Case Deep Nitride