FOR SALE Mopar Performance 4-inch Stroker Crankshaft for 318/340

Mopar Performance Parts For Sale

  1. ChargerPilot

    ChargerPilot Well-Known Member

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    Contact Seller
    This is a new Mopar performance heavy-duty crankshaft for a 318 or 340 (P5007256). I was going to build a big inch sleeper car using my 318, but I sold the car so no longer need this brand new crank.
    Asking $375.
    It's heavy so I prefer local pickup or I may be able to deliver to limited areas.
    Thanks
    dcc-5007256 Crankshaft.jpg
     
  2. YY1

    YY1 Well-Known Member

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    what CID does it make in a 318, and do you need custom pistons?
     
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    • Kern Dog

      Kern Dog FBBO Gold Member FBBO Gold Member

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      These usually result in a 390 in a 318 with a .030 overbore.
       
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      • YY1

        YY1 Well-Known Member

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        That's what I was thinking.
         
      • oldkimmer

        oldkimmer Well-Known Member

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        Is this crank cast or forged? Is this a 4inch arm? Thanks. Kim
         
      • oldkimmer

        oldkimmer Well-Known Member

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        I see the op has been on but never answered any questions. I’m out. Kim
         
      • ChargerPilot

        ChargerPilot Well-Known Member

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        Hi, Depends on the overbore, but with a stock 318 it would probably be close to 390 CID and with a 340 it is something over 400 CID. This is a standard MOPAR Performance piece so I believe piston manufacturers make pistons for the stroker engines.

        I bought this from Summit and was going to use this in a Charger with 318 I had along with a cam optimized for low-end torque and a set of 2.94 gears for a nice cruiser. However, I sold the car before I could use this crankshaft.
        Thanks,
         
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        • ChargerPilot

          ChargerPilot Well-Known Member

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          Hi,
          I believe it is a cast crankshaft. This crankshaft provides a 4 inch stroke so that would be 2 inches from the center line of the main bearings to the center line of the rod bearings.
          Thanks,
           
        • ChargerPilot

          ChargerPilot Well-Known Member

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          Hi, I don't usually post when I check the forums from my phone; I wait until I can log on to my desktop. If anyone has a question that needs a more immediate response please PM me your phone number and I will call you.
          Thanks,
           
        • not so famous bob

          not so famous bob Well-Known Member

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          Summit site shows cast steel ----------
           
        • not so famous bob

          not so famous bob Well-Known Member

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          Summit shows cast steel , $472 shipped -----------
           
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