Manley Chevrolet LT1 Directed Injected 4340 Forged 4.00in Stroke Pro Series Crankshaft - 194258

$1,190.53
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man194258
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Upgrade your Chevrolet LT1 with the Manley 4.000" Stroke Pro Series Lightweight Crankshaft. Crafted from premium 4340 steel, this crankshaft boosts your engine's displacement to 6.8-7.0L. Shipped with a 58T reluctor wheel installed, it ensures top performance and durability.

  • Premium 4340 steel forging
  • 4.000" stroke for increased displacement
  • Multi-step heat treatment and nitriding for strength
  • Stress relieved, shot-peened, and 100% magnafluxed
  • Micro polished large radius journals
  • Gun drilled mains and lightened rod journals
  • Fully profiled counterweights

Manufactured from a premium 4340 steel forging, these cranks feature a stock 3.622" stroke or a increased 4.000" stroke which can turn your 6.2L into 6.8-7.0L depending on your bore. All crankshafts are shipped with a 58 tooth reluctor wheel installed.

Features:

  • 4340 material forgings.
  • Multi-step heat treatment process and nitrided for added strength.
  • Stress relieved, shot-peened, and 100% magnafluxed.
  • Micro polished large radius journals (narrowed rod bearings required).
  • Gun drilled mains and lightened rod journals for weight reduction.
  • Counterweights fully profiled.
Specifications:
  • Design: LW
  • Reluctor Wheel: 58
  • Stroke: 4.000"
  • Min Rod Length: 6.125"
  • Main Journal Diameter: 2.559"
  • Rod Journal Diameter: 2.100"
  • Bob Weight (grams): 1850
  • Total Weight (lbs): 51-53
Fitments:
  • Chevrolet LT1 Lightweight
More Information
Brand Manley
upc 807298096872