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Mopar Performance P5007907

Forged Crankshaft Forged 4340 Steel

Mopar Performance P5007907

312-P5007907

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Ships 12/14/16 if Ordered Today
Mopar Performance P5007907 Forged Crankshaft Forged 4340 Steel $1,375.99
Forged Crankshaft
  • Forged 4340 Steel
  • 3.075" Stroke
  • 2.25" Main Journals (Use w/ Ford 302 Bearings)
  • 2.000" Rod Journals (Use w/ SBC Small Journal Rod Bearings)

  • Specifications:

    Engine Balance
    Internal
    Rear Main Seal Style
    2-Piece
    Crankshaft Material
    Forged 4340 steel
    Crankshaft Snout Style
    Standard
    Engine Stroke (in.)
    3.075
    Lightened
    No
    Main Bearings Included
    No
    Main Journal Diameter (in.)
    2.25
    Quantity
    Sold individually
    Requires Narrow Bearings
    Yes
    Rod Bearings Included
    No
    Rod Journal Diameter (in.)
    2
    Manufacturer's Part Number:
    P5007907

    The Mopar A4 engine is a 4-cylinder aluminum block racing engine that is based on half of a small block Mopar. This engine uses one small block Mopar V8 cylinder head, valves, rocker arms, valve cover, and header. The drag racing versions of this block have the small block Mopar bell-housing and can be used with a transmission. The Midget versions of the block have the bell-housing machined away to save weight since these racing engines are not used with a transmission.



    All A4 Aluminum Blocks have the following features:
  • 4-Bolt Billet Steel Main Caps (All are Cross Bolted)
  • 2.25" Mains (Use Ford 302 Main Bearings)
  • Ductile Iron Cylinder Sleeves w/ 4.120" Rough Bore
  • Siamese Bore Casting

    These racing engines must be used with a dry sump oiling system, and the gear drive systems shown below.

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