Crower 95143C Features:

Big Block Chevy 4340 billet crankshaft with 5.125 in. stroke and lightening holes included. Custom-order design requires rod journal size, main journal size, and rod length at purchase. Made in the USA from aerospace-quality, vacuum-degassed 4340 chromoly steel. CNC-machined from round bar with precision indexing and throw-to-throw consistency.

Crankshaft 4340 Billet Bb Chevy 5.125 In. Stroke Lightening Features:

• 5.125 in. stroke billet crankshaft for BIG BLOCK CHEVY applications, engineered to increase displacement potential and deliver stronger low-end and mid-range torque in high-output racing and performance engine builds
• 4340 billet chromoly steel construction with vacuum-degassed aerospace-grade material, designed for exceptional tensile strength, fatigue resistance, and reliability under extreme cylinder pressure and sustained high-rpm operation
• Lightening holes included with advanced counterweight profiling to reduce rotating mass and frontal area, helping improve windage control, limit oil shearing in the pan, and promote quicker engine acceleration and deceleration
• Precision CNC-machined crank throws with exact indexing and throw-to-throw consistency, supporting smoother balance characteristics, repeatable bearing geometry, and the accuracy demanded by professional engine builders
• 1/8 in. radius journal design with custom-order rod journal, main journal, and rod-length specification capability, allowing a more tailored fit for specialized BIG BLOCK CHEVY rotating assemblies and racing combinations