Pistons

Discussion in 'Mopar Performance Issues' started by cuda620, Dec 10, 2017.

  1. cuda620

    cuda620 Well-Known Member

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    Does anybody make forged Pistons for a stock rod and stock stroke 400 mopar? Don't want cast or hypers. Thanks!
     
  2. JBurch

    JBurch Well-Known Member

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  3. cuda620

    cuda620 Well-Known Member

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    3.75 stroke and 6.76 rod for stroker build. I'm not doing that. Thanks though for the help. May have to get oversize 440 Pistons and cut the crown.
     
  4. JBurch

    JBurch Well-Known Member

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    sorry
     
  5. cuda620

    cuda620 Well-Known Member

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    No problem thanks for Tryin to help.
     
  6. JBurch

    JBurch Well-Known Member

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    Try searching for a set of: P3690831, 400 ci engine, 11.5 to 1 compression
     
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    • Dartn440

      Dartn440 FABO Gold Member FABO Gold Member

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      Mahle BBM120375F08

      I think that’s what you are talking about....
       
    • cuda620

      cuda620 Well-Known Member

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      Thanks guys!
       
    • Dartn440

      Dartn440 FABO Gold Member FABO Gold Member

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      A lot of stroker pistons to weed through...lol
       
    • cuda620

      cuda620 Well-Known Member

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      I'm not after a stroker piston though. If that were the case,it'd be easy. Everybody's got them. Lol. Mahle is a 499 stroker piston. Thanks though.
       
      Last edited: Dec 10, 2017
    • Dana

      Dana FABO Gold Member FABO Gold Member

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      Almost any piston manufacturer will make whatever you spec. Out.
       
    • cuda620

      cuda620 Well-Known Member

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      Yea I know... But if more cost I'll just do a 451 like everyone else. A 400 that screams like a 383 is cool though. Thanks.
       
    • cuda620

      cuda620 Well-Known Member

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      Those may work if I can find em. Lower the compression a bit and aluminum heads.... Seems hard to find though. Thanks JBurch.
       
    • Dana

      Dana FABO Gold Member FABO Gold Member

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      There was someone on mop arts a couple years ago, that was going to do a run of 400 pistons. I'm thinking HotRodDave had something to do with it.
       
    • Bobzilla

      Bobzilla Well-Known Member

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      I ran forged Wiseco pistons in my stock stroke 400. They were 4.375" bore, and it was running stock length Eagle rods and stock stroke factory 383 crankshaft. Ran really well and loved nitrous. You just need to call any piston manufacturer and ask what they can do. If it's not currently available off the shelf, most of them have something close and will adjust the compression height for a nominal fee to fit your application.
       
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      • Dana

        Dana FABO Gold Member FABO Gold Member

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        Cuda620 I am STILL computer retarded. I've been trying to drag you a link to the moparts page about the pistons you are looking for. So.... if you get on moprts, click on hot deals/new products, look for 383/400 piston thread. Mike s is the author and the guy trying to get it off the ground. Worth a look at least.
         
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        • Marcohotrod

          Marcohotrod Well-Known Member

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          400 engine - 4.342" bore X 3.375" stroke. federal mogul / trw / speed pro L2387F 30 - 1.825" comp. dist. flattop, 794 grams. maybe u can find some
           
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          • cuda620

            cuda620 Well-Known Member

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            thanks all. I spoke to wiseco but it was almost a thousand bucks.
             
          • Rocket

            Rocket FABO Gold Member FABO Gold Member

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          • RustyRatRod

            RustyRatRod Just another dumbass. FABO Gold Member Technical Editor

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            If you can find a stock, low compression 440 forged piston, you can use those in a 400 if the camshaft is not too big. People did it for decades.
             
          • RustyRatRod

            RustyRatRod Just another dumbass. FABO Gold Member Technical Editor

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            I THINK this is the correct compression height. I am not sure. You will have to do the figgerin to see. There were two heights people used. One brought the piston to about .010" below the 400 deck and the other was real close to flush. You could add valve reliefs and make room for most any camshaft you want.

            Speed-Pro Forged Pistons L2266F30
             
          • cuda620

            cuda620 Well-Known Member

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          • RustyRatRod

            RustyRatRod Just another dumbass. FABO Gold Member Technical Editor

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            If that was pointed in my direction, probably. But in a case like this, it always pays to measure, measure, measure! You can use the deck height calculator on the United Engine site to see if those pistons I linked to will work. I think they might. But if you cut valve reliefs, they would be really NICE pieces for not a whole lot of money in comparison. You can rent the valve relief cutters from Hughes I believe.
             
          • Marcohotrod

            Marcohotrod Well-Known Member

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            the federal mogul L2388F 30 will be about .010" below deck, and is for a 4.350" bore, 400 + .008", or get +.040" or + .060" . the L2266F would be above deck about .060". the 440 piston is about 20 grams heavier than the 400 piston, close enough to not be an issue
             
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            • RustyRatRod

              RustyRatRod Just another dumbass. FABO Gold Member Technical Editor

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              Well then that certainly isn't the 440 piston that will work, but there is one or two that will. I just cannot remember which ones. Dangit all.