Piston I.D. please

Discussion in ''Da Nailhead' started by dualqwad, Nov 9, 2002.

  1. dualqwad

    dualqwad ...just another lost soul

  2. Roberta

    Roberta Buick Berta

    Too bad they don't have a pic of the top, would be alot easier to see what they are!!!!!!!! Send them a message. R
     
  3. dualqwad

    dualqwad ...just another lost soul

    Top view

    Done!:TU:
     

    Attached Files:

  4. GSXMEN

    GSXMEN Got Jesus?

    Robert,

    4 3/16" is 4.188 which is standard bore for the 401 nailhead - same with the 430.

    That should narrow it down a bit.
     
  5. Babeola

    Babeola Well-Known Member

    401 Piston?

    Robert,

    The dome looks kind of short relative to a stock cast piston. I would guess 9 to one or lower unless the compression height has been raised. Attached is a picture of a .030 over 401 piston for comparison.

    Cheryl :)
     

    Attached Files:

  6. dualqwad

    dualqwad ...just another lost soul

    Just as I thougt

    I was hoping they would fit a 425.:(
    Maybe for an earlier nailhead?
    You have confirmed my suspicions that they are a low compression variety.
    Thanx!:TU:
     

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