[FOR SALE] KB190 360 standard pistons

Mopar Mechanical Parts For Sale

  1. Gearhed73

    Gearhed73 Well-Known Member

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    kB190 pistons, standard bore. Hasting rings, gapped for nitrous included. Never ran, used for buildup only. Ended up using a different piston.
    $250 shipped to the lower 48

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    • oldkimmer

      oldkimmer FABO Gold Member FABO Gold Member

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      What compression will these be with a stock cc J head with .053 gasket? Will these be above deck with a non milled block? Thanks. Kim
       
    • Gearhed73

      Gearhed73 Well-Known Member

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    • Gearhed73

      Gearhed73 Well-Known Member

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      I’ll run those numbers for you. Let me just wrap up some things at work first.
       
    • autoxcuda

      autoxcuda Well-Known Member

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    • 1966DDart

      1966DDart Well-Known Member

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      As you know, these aren't mine but, maybe this will help the seller...

      Being that they have a slight dome/pop-up (0.080"), they will extend above deck. Looking at KB web page, the compression should be in the 10.5-11 area, depending on the actual cc of your J heads.

      KB Automotive Hyper - Chrysler 360 / 5.9 - KB190

      Compression Ratio: 62-11.8, 64-11.5, 68-10.9, 72-10.5

      Using a standard LA deck height (9.600"), I come up with the following...

      1/2 of the stroke = 1.79"
      Rod length = 6.123"
      Compression ht = 1.675"
      TOTAL = 9.588"
      ...plus pop-up = 0.080"
      Calc above deck = 0.068" (9.588 + 0.080 - 9.600)

      When I run compression calculations using -1.2cc from KB description, 69cc heads, and assuming a Felpro 1000 gasket (~8.8cc), I come up with 10.75 to 1 compression. Anyway, hope that helps.
       
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      • oldkimmer

        oldkimmer FABO Gold Member FABO Gold Member

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        Thanks
         
      • Gearhed73

        Gearhed73 Well-Known Member

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        To the top
         
      • rumblefish360

        rumblefish360 So close, yet so far away FABO Gold Member

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        FWIW, you will probably have to mill the deck some in order to get the main part of the piston to a zero deck height.
         
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        • Gearhed73

          Gearhed73 Well-Known Member

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          $200, buyer pays shipping
           
        • Gearhed73

          Gearhed73 Well-Known Member

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          BUMP
           
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