Eagle ESP Forged 4340 Steel Crankshafts


Eagle
Eagle ESP Forged 4340 Steel Crankshafts

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Eagle ''ESP'' 4340 steel cranks feature exceptional strength and unsurpassed quality at a reasonable price. The perfect choice for high performance application. These 4340 cranks are comparably priced with other cranks of lesser strength. 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 of the rod & main journals receive a .125'' radius in the corners for increased strength. The journals are then precision ground & micro-polished to an R.A. of less than 5 and Nitrided for superior wear resistance. 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 bobweight +/-2% that reduces balancing time.

NOTE: Chamfered bearings are required to provide adequate clearance for the .125'' journal radius.



Chevrolet - Big Block

356-439637666135
Chevrolet 396 Forged Steel Crankshaft,
  • 3.766'' Stroke
  • 6.135'' or Loner Rod Length
  • 2.200'' Rod Journal
  • 2-Piece Rear Main Seal
  • Internal Balance (Center Counterweight)
  • 2350 bobweight
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  • $799.99
    Ships

    356-445440026135
    Chevrolet 454 Forged 4340 Steel Crankshaft
  • 4.000'' Stroke
  • 6.135'' or Longer Rod Length
  • 2.200'' Rod Journal
  • 2-Piece Rear Seal (Early Style)
  • Internal Balance (Center Counterweight)
  • 2350 Bobweight
    View this item
  • $689.99
    Ships

    356-445442526385
    Chevrolet 454 Forged 4340 Steel Crankshaft
  • 4.250'' Stroke
  • 6.385'' or Longer Rod Length
  • 2.200'' Rod Journal
  • 2-Piece Rear Seal (Early Style)
  • Internal Balance (Center Counterweight)
  • 2300 Bobweight
    View this item

    Fits Applications
  • $689.99
    Ships

    356-445642546385
    Chevrolet 454 (Mark V & VI) Lightweight Forged 4340 Steel Crankshaft
  • 4.250'' Stroke
  • 6.385'' or Longer Rod Length
  • 2.200'' Rod Journal
  • 1-Piece Rear Seal (Late Style)
  • Internal Balance
  • 2350 Bobweight
  • 70 lbs. Appoximate Weight
    View this item
  • $691.99
    Ships
    Chevrolet - LS Series
      356-434736226100
    Chevrolet 6.0L LS2 Forged 4340 Steel Crankshaft
  • 3.622'' Stroke
  • 6.125'' or Longer Rod Length
  • 2.100'' Rod Journal
  • 1-Piece Rear Seal
  • Internal Balance
  • 1800 Bobweight
    View this item
  • $873.99
    Ships
    02/22/12
    Chevrolet - Small Block

    356-435032505700
    Chevrolet 350 Forged 4340 Steel Crankshaft
  • 3.250'' Stroke
  • 5.700'' or Longer Rod Length
  • 2.100'' Rod Journal
  • 2-Piece Rear Seal (Early Style)
  • Internal Balance
  • 1875 Bobweight
    View this item
  • $576.99
    Ships
    02/22/12

    356-435034805700
    Chevrolet 350 Forged 4340 Steel Crankshaft
  • 3.480'' Stroke
  • 5.700'' or Longer Rod Length
  • 2.100'' Rod Journal
  • 2-Piece Rear Seal (Early Style)
  • Internal Balance
  • 1875 Bobweight
    View this item

    Fits Applications
  • $546.99
    Ships

    356-4350348057LW
    Chevrolet 350 Lightweight Forged 4340 Steel Crankshaft
  • 3.480'' Stroke
  • 5.700''/6.000'' Rod Length
  • 2.100'' Rod Journal
  • 2-Piece Rear Seal (Early Style)
  • Internal Balance
  • 48lbs appx
  • Will balance 1750 bobweight without heavy metal
    View this item

    Fits Applications
  • $606.99
    Ships

    356-435037505700
    Chevrolet 350 Forged 4340 Steel Crankshaft
  • 3.750'' Stroke
  • 5.700'' or Longer Rod Length
  • 2.100'' Rod Journal
  • 2-Piece Rear Seal (Early Style)
  • Internal Balance
  • 1875 Bobweight
    View this item

    Fits Applications
  • $546.99
    Ships
    02/22/12
      356-435038756000
    Chevrolet 350 Forged 4340 Steel Crankshaft
  • 3.875'' Stroke
  • 6.000'' or Longer Rod Length
  • 2.100'' Rod Journal
  • 2-Piece Rear Seal (Early Style)
  • Internal Balance
  • 1855 Bobweight
    View this item
  • $576.99
    Ships

    356-435337505700
    Chevrolet 350 Forged 4340 Steel Crankshaft
  • 3.750'' Stroke
  • 5.700''/6.000'' Rod Length
  • 2.100'' Rod Journal
  • 1-Piece Rear Seal (Late Style)
  • Internal Balance
  • 1875 Bobweight
    View this item
  • $576.99
    Ships

    356-440037505700
    Chevrolet 400 Forged 4340 Steel Crankshaft
  • 400 Main Journals, No Spacer Bearings Required
  • 3.750'' Stroke
  • 5.700'' or Longer Rod Length
  • 2.100'' Rod Journal
  • 2-Piece Rear Seal (Early Style)
  • Internal Balance
  • 1900 Bobweight
    View this item

    Fits Applications
  • $576.99
    Ships

    356-440040006000
    Chevrolet 400 Forged 4340 Steel Crankshaft
  • 400 Main Journals, No Spacer Bearings Required
  • 4.000'' Stroke
  • 6.000'' or Longer Rod Length
  • 2.100'' Rod Journal
  • 2-Piece Rear Seal (Early Style)
  • Internal Balance
  • 1900 Bobweight
    View this item
  • $661.99
    Ships
    Chrysler - Big Block

    356-444037506760
    Chrysler ''RB'' 413-440 Forged 4340 Steel Crankshaft
  • 6-Bolt Flange
  • 3.750'' Stroke
  • 6.760'' Minimum Rod Length
  • 2.375'' Rod Journal
  • Standard Oiling
  • Internal Balance
  • 2550 Bobweight
    View this item
  • $691.99
    Ships
    02/22/12

    356-444041506760
    Chrysler ''RB'' 413-440 Forged 4340 Steel Crankshaft
  • 6-Bolt Flange
  • 4.150'' Stroke
  • 6.760'' Minimum Rod Length
  • 2.375'' Rod Journal
  • Standard Oiling
  • Internal Balance
  • 2550 Bobweight
    View this item
  • $691.99
    Ships
    02/22/12
    Pontiac

    356-440042106625
    Pontiac 400 Forged Steel Crankshaft,
  • 4.2100'' Stroke
  • 6.625'' Rod Length
  • 2.249'' Rod Journal
  • 2-Piece Rear Main Seal
  • Internal Balance
  • Bobweight: 0 +/- 2%
    View this item
  • $799.99
    Ships

    356-440042506700
    Pontiac 400 Forged Steel Crankshaft,
  • 4.2500'' Stroke
  • 6.700'' Rod Length
  • 2.200'' Rod Journal
  • 2-Piece Rear Main Seal
  • Internal Balance
  • Bobweight: 0 +/- 2%
    View this item
  • $691.99
    Ships

    356-440043506800
    Pontiac 400 Forged Steel Crankshaft,
  • 4.3500'' Stroke
  • 6.800'' Rod Length
  • 2.200'' Rod Journal
  • 2-Piece Rear Main Seal
  • Internal Balance
  • Bobweight: 0 +/- 2%
    View this item
  • $602.99
    Ships
    02/22/12

    356-440045006800
    Pontiac 400 Forged Steel Crankshaft,
  • 4.5000'' Stroke
  • 6.800'' Rod Length
  • 2.200'' Rod Journal
  • 2-Piece Rear Main Seal
  • Internal Balance
  • Bobweight: 0 +/- 2%
    View this item
  • $602.99
    Ships
    02/22/12

    356-445542106625
    Pontiac 455 Forged Steel Crankshaft,
  • 4.2100'' Stroke
  • 6.625'' Rod Length
  • 2.249'' Rod Journal
  • 2-Piece Rear Main Seal
  • Internal Balance
  • Bobweight: 0 +/- 2%
    View this item
  • $762.99
    Ships

    356-445542506700
    Pontiac 455 Forged Steel Crankshaft,
  • 4.2500'' Stroke
  • 6.700'' Rod Length
  • 2.249'' Rod Journal
  • 2-Piece Rear Main Seal
  • Internal Balance
  • Bobweight: 0 +/- 2%
    View this item
  • $653.99
    Ships
    02/22/12