we're providing the core strength your engine build demands. The Pro Series 4340 Alloy Steel Crankshaft is an efficient and precisely balanced foundation for performance, built not just to survive, but to handle extremes across a wide range of applications.

• 4340 Construction: Forged or Turbo Tuff billet for superior strength
• Gun-drilled mains and lightened journals cut weight
• Heat-treated and nitrided for durability
• Micro-polished journals reduce friction
• 100% magnaflux-inspected