Callies: Magnum Crankshaft [LS LSX Engines] apr splitter The SE1 is machined from

The SE1 is machined from a single forging of 6061-T6 aluminum

Works with Metco Motorsports & Lightning Force Performance Interchangeable Pulleys

2" Headers and off road X pipe:  Your choice between American Racing

The weapon X2 package option 4 includes:

Weight Comparison One-piece 18 lbs

Callies: Magnum Crankshaft [LS LSX Engines] apr splitter The SE1 is machined fromAfter 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