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Manley Performance

Manley Chevrolet LT1 Directed Injected 4340 Forged 4.00in Stroke Pro Series Crankshaft

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CODE: MAN194258
$1,384.63
$1,273.86 In Stock Sold out
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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 Non-Twist Forging: Lightweight, high-strength design for max performance
  • Gun-drilled mains and lightened journals cut weight
  • Heat-treated and nitrided for durability
  • Micro-polished journals reduce friction
  • 100% magnaflux-inspected