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Mopar Performance P5007573 - Mopar Performance A4 Aluminum Engine Blocks & Components

Mopar Performance P5007573 - Mopar Performance A4 Aluminum Engine Blocks & Components

Mopar Performance#312-P5007573

Forged Crankshaft - Un-Machined
  • Forging 4340 Steel
  • Un-Machined - Machine to your Specifications
  • Approximate Stroke Range 3.000" to 3.250"

    Mopar Performance P5007573 - Mopar Performance A4 Aluminum Engine Blocks & Components

    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.

  • JEGS Performance Products 28000 - JEGS Engine Assembly Lube
    Only $5.99

    JEGS Performance Products 80018 - JEGS Storage Bags
    Only $4.99

    JEGS Performance Products 28060 - JEGS Engine Break-In/E.O.S. Lubricant
    Only $10.99

    JEGS Performance Products 80593 - JEGS Plastigauge Kit
    Only $8.99


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