82mm headgasket on 82.5mm bore?

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  • gordon c
    S2Forum Fanatic
    • Mar 2007
    • 81
    • Country: Scotland
    #1

    82mm headgasket on 82.5mm bore?

    i'm in the process of rebuilding the engine in my ABY coupe, im fitting 82.5mm JE pistons. i have been told its ok to use the stock steel gasket which is 82mm

    i'm not convinced on this due to it being smaller diameter than the pistons
    anybody BTDT?

    cheers
    Tags: None
    • Mikes2
      S2Forum Extremist
      • Jul 2003
      • 1704
      • Country: Scotland
      #2
      Standard pistons are 81mm.

      7A engines use 82.5mm pistons - that's probably the gasket you need
      Mike

      http://www.s2-audi.co.uk

        Comment

        • Faheemo
          S2Forum Maniac
          • Feb 2005
          • 544
          • Country: South Africa
          #3
          7a Gasket is not a metal HG.

          This is what i did to make the 82mm HG work on a 82.5mm Bore..
          http://www.s2forum.com/forum/showthread.php?t=25724&page=8

          S2 Coupe fully built.
          10.9 1/4mile 0-100 in 3.5secs
          Precision 6262 turbo
          The Green Monster

            Comment

            • a4kquattro
              S2Forum Addict
              • Feb 2005
              • 411
              • Country: United States
              #4
              Originally posted by Faheemo
              7a Gasket is not a metal HG.

              This is what i did to make the 82mm HG work on a 82.5mm Bore..
              http://www.s2forum.com/forum/showthr...t=25724&page=8
              hope you didn't clamp down too tight on that torque plate..
              Marc Swanson
              Proprietor, EFI Express
              95.5 //S6 Avant
              90' Coupe Quattro V8 4.2L twin turbo
              93' //S4
              83' UrQ
              97' F250 7.3 diesel

                Comment

                • Faheemo
                  S2Forum Maniac
                  • Feb 2005
                  • 544
                  • Country: South Africa
                  #5
                  just a gentle tighten with a spanner ...

                  S2 Coupe fully built.
                  10.9 1/4mile 0-100 in 3.5secs
                  Precision 6262 turbo
                  The Green Monster

                    Comment

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