GM LSx CS 4340 Forged Crank 3.625 Stroke

The Callies Compstar LS crankshafts are constructed from 4340 forged steel and undergo a deep nitriding process for enhanced strength and wear resistance. These crankshafts are precision-machined with eight counterweights, optimized for improved bearing load distribution, making them suitable for high-boost and high-RPM applications. They feature large journal radii, are gun-drilled with 8 mains, and include fully lightened rod journals. This crankshaft is specifically designed for high-output installations in Gen III / IV LS Engines, with a 3.625-inch stroke, 58X reluctor wheel, and a 1-piece rear main seal.