GS400 and GS425 wrist pin diameters

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  • Guest
    #1

    GS400 and GS425 wrist pin diameters

    Does anyone know what size the pins are?

    Jay
    Tags: None
    • TeamDar
      Forum Sage
      Past Site Supporter
      • Nov 2008
      • 1137
      • St. Louis, MO
      #2
      16 millimeters.

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        • Guest
          #3
          Appreciate that very much

            Comment

            • TeamDar
              Forum Sage
              Past Site Supporter
              • Nov 2008
              • 1137
              • St. Louis, MO
              #4
              GS400 & GS750 use the same pistons(65mm), wrist pins(16mm), and valves. GS425 uses a 2mm overbore for 67mm. GS450 is more like the GS1000 except for the plain bearing crank. What are you building Jay? Dar

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                • GregT
                  Forum Sage
                  • Jul 2009
                  • 3541
                  • New Zealand
                  #5
                  The 450 and 500 use the 18mm pins too so you can go to 74mm plus 1mm o/s with the same pin to top land height.
                  Hope this is of use.

                  greg t

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