Anybody running 440 4006452 heads on a 383?

Mopar Performance Issues

  1. oldkimmer

    oldkimmer FABO Gold Member FABO Gold Member

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    Get ur builder to grind the crank for a Chevy rod, then get 1 set appropriately .100 thou longer. Or buy new pistons. Kim
     
  2. Jadaharabi

    Jadaharabi FABO Gold Member FABO Gold Member

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  3. 383FormulaS67

    383FormulaS67 Bob

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  4. jaws

    jaws I put the fun in dysfunctional FABO Gold Member

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    Flat top, with a 4.310 bore. 014 stroke on crank and 020 out. This was a motor built for super stock drag racing.
     
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    • 383FormulaS67

      383FormulaS67 Bob

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      Thanks Kim looking into new pistons now, keeping the 516 heads and adding 1.74 exhaust valves.
       
    • aaronk785

      aaronk785 Well-Known Member

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      Don't forget a .020 head gasket either.
       
    • 383FormulaS67

      383FormulaS67 Bob

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      Still working on sourcing near zero deck pistons, so far n/a. Keith Black tech support has been good, but we just don't know why the pistons are so low in the hole. Machine shop has no answers, other than using dome piston, which I don't want for many reasons.....I'd like flat tops within .012 TBD
       
    • RustyRatRod

      RustyRatRod 30 Degrees Outta Whack FABO Gold Member

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      Here is what you want. Keith Black KB Performance Pistons KB162-030

      You have to mill the block to end up with zero deck height. With the above part number you will need to mill about .0265 off the deck to get zero deck height. Most machine shops will deck a block for around 150 bucks. It's highly recommended anyway with a Chrysler block because their deck tolerances were terrible and they are almost always out of spec.

      I would go zero deck. If you want the piston in the hole, you can just subtract that amount from the total I posted above.
       
    • 383FormulaS67

      383FormulaS67 Bob

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      Thanks, still trying to find close to zero deck pistons. Something not right with this at .105 below the deck...
       
    • RustyRatRod

      RustyRatRod 30 Degrees Outta Whack FABO Gold Member

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      Sure it's right. That's the way they came. You're not going to find a closer to zero deck piston unless you have one cu$tom made.
       
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      • Jadaharabi

        Jadaharabi FABO Gold Member FABO Gold Member

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        What years did Chrysler produce the raised block 383?
        Maybe you have one of them.
         
      • 383FormulaS67

        383FormulaS67 Bob

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        Thanks, that's what I was talking with KB tech center today, (mine is 60 over). The block is already decked is what was confusing me .... Going to ask the machine shop to measure and give me the deck height.
         
      • mycuda

        mycuda FABO Gold Member FABO Gold Member

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        If your interested in building power above 3600rpm BB. Open chamber way to go. Dont ask me how I know. Proper cam unless compression is unworthy closed is economical.
         
      • 383FormulaS67

        383FormulaS67 Bob

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        Mine has a casting date of 1/31/67
         
      • RustyRatRod

        RustyRatRod 30 Degrees Outta Whack FABO Gold Member

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        So, closed chamber engines won't make power above 3600? Somebody better tell a LOT of former Stock Eliminator record holders.
         
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        • mycuda

          mycuda FABO Gold Member FABO Gold Member

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          Street cars Thought were talkin heads vs/ compression/ economic build.
           
        • RustyRatRod

          RustyRatRod 30 Degrees Outta Whack FABO Gold Member

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          Yes street car. But I'm not the one who said closed chamber heads don't power above 3600. That's simply untrue. I am trying to get to the bottom of that statement.
           
        • mycuda

          mycuda FABO Gold Member FABO Gold Member

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          All around streetcar IMO 3.91 gear BB 2" headers 1000cfm Open chamber ported heads all I need to beat anyones ass on the road. At least so far...forget the nitrous.
           
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          • RustyRatRod

            RustyRatRod 30 Degrees Outta Whack FABO Gold Member

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            Well sure, but not everyone's version of a "street car" is the same. I like yours though. lol
             
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            • fishmens67

              fishmens67 Well-Known Member

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              Your combo would suck the life out of a 383 on the street. you won't be beating much on the street with this combo in a 383.
               
            • mycuda

              mycuda FABO Gold Member FABO Gold Member

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              Again, this is not a cross country set up...lol But a town to town exitement
              Which I probably would prefer. My 65Dart magnum project will foot that bill


              Dave
               
            • 383FormulaS67

              383FormulaS67 Bob

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              I've gone from closed to open chamber heads three times.. She's no race car, just want a 9.5/1 street car, I can enjoy and sell it....
               
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              • EchoSixMike

                EchoSixMike Well-Known Member

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                Icon IC687 piston. Look at that one. S/F....Ken M
                 
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