How to identify pistons?

Small Block Mopar Engine

  1. mopardrt

    mopardrt Well-Known Member

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    Going through the shop I found this box of pistons on our 318/360 parts shelf the piston box they are in says something Chevrolet, but I know we don’t have any Chevrolet parts. So how can I identify these pistons?

    B8CDA674-29AF-4365-B65E-A4FDAEDFAFD0.jpeg

    FA57C0E2-E8CD-4668-ACC6-425458E0AF48.jpeg

    70F1F8AC-02FA-4498-88F5-2829297B551D.jpeg
     
  2. SGBARRACUDA

    SGBARRACUDA ROY FABO Gold Member

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    Is there a part number on the top of the piston?
     
  3. pishta

    pishta I know I'm right....

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    They dont look like LA pistons. brows are too big and they have a ridge in the middle. 318s have dinky eyebrows and 360's have a stock dish.
    p1516_3.jpg
    340's were one sided brows as well as 273-4's, Check out Dibbons old post, Sealed Power 2369p...look familiar? Anyone have stock or stock replacement 72-73 340 Pistons?
     
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    • j par

      j par Well-hung Member

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      Measure them?
       
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      • JBurch

        JBurch FABO Gold Member FABO Gold Member

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        Cast pistons often though not always have numbers cast into them inside, they also often have logos of the manufacture cast into them, look for them

        I see in the one pic that there is an "F" cast into the piston above the pin........maybe Federal-Mogul ?
         
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        • teringer

          teringer FABO Gold Member FABO Gold Member

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          they look like cheap Badger pistons used to be about 89$ a set that's what we used in the claimer motors in dirt track racing. with the short skirt my guess is 360
           
          Last edited: Apr 9, 2018
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          • Krooser

            Krooser Reform School Graduate

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            Pin diameter will rule out being Chevy pistons... that's a start.
             
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            • TrailBeast

              TrailBeast AKA Mopars4us on Youtube

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              Those are 8 cylinder engine pistons. :poke:

              (running and ducking):D
               
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              • mikedevore

                mikedevore Well-Known Member

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                340 cast low compression aftermarket pistons.
                 
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