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Eagle 945442526385

Chevrolet ESP Armor 4340 Forged Steel Crankshaft 4.250" stroke

Eagle 945442526385
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Ships 12/16/16 if Ordered Today
Eagle 945442526385 Chevrolet ESP Armor 4340 Forged Steel Crankshaft 4.250" stroke $949.99
Chevrolet ESP Armor 4340 Forged Steel Crankshaft
  • 4.250" stroke
  • 6.385" Rod length
  • Center Counterweights
  • Bobweight: 2300
  • 2-Piece Rear Seal

  • Specifications:

    Manufacturer's Part Number:
    945442526385



    The Eagle ESP Forged 4340 Steel Crankshafts feature exceptional strength and unsurpassed quality at a reasonable price and are the perfect choice for high-performance applications. These cranks start as forged 4340 steel non-twist forgings that undergo a multi-stage heat treat process and x-rayed, magnafluxed and sonic tested to ensure your crank is free of cracks, air pockets and any imperfections that could occur during the forging process. They are stress relieved and shot peened for durability and longevity.

    During the machining process, the crank is indexed for correct stroke and all rod and main journals receive a .125'' radius in the corners for increased strength. The journals are nitrated then precision ground and micro-polished to an R.A. of less than 3. All of the oiling holes are cross drilled & chamfered for improved oiling to the rods and mains. Counterweights are designed for easy balancing and do not require any machining for block clearance. Each ESP crankshaft is inspected for dimension, size and stroke accuracy so you know it is capable of going from the box to your block without worries. Eagle also guarantees a target bob weight +/-2% that reduces balancing time!

    ESP Armor
    Eagle's exclusive ESP Armor finishing process has raised the bar for crankshaft finishes. This revolutionary process available only through Eagle finishes the crankshaft journal surfaces to near perfection and reduces microscopic imperfections on the entire crank. The result is MORE POWER by reducing bearing shear friction and increased durability. Eagle offers a one year warranty on all standard weight forged 4340 steel crankshafts finished with the ESP Armor process. This warranty is unmatched by ANY crankshaft manufacturer at ANY price! Dyno testing has shown increases from 1% to 4% across the powerband on ESP Armor finished crankshaft vs. unfinished crankshafts. More heavily loaded engines show the greatest gains.

    Note: Requires Chamfered Bearings

    Dyno Chart

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