GS1000 Piston Kit

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  • Russ' GS1000E

    #1

    GS1000 Piston Kit

    OK, so I finally measured the cylinder bores and pistons on my GS.
    Everything is at the wear limit, and the bores are 3 thou out of round.
    So even though it all looks really good, a piston kit looks in the cards.

    Sooo, what piston kit does the 'GS Collective' recommend ?
    Thanks in advance.

    -Russ
  • 80GS1000

    #2
    Do you want to stay at stock-ish displacement or go up to 1085/1100 cc? For the money I'd go with a 1085/1100 Wiseco kit. Noticeably more torque on the butt dyno.

    Comment

    • Nessism
      Forum LongTimer
      GSResource Superstar
      Past Site Supporter
      Super Site Supporter
      • Mar 2006
      • 35790
      • Torrance, CA

      #3
      If you are cheap, this guy has a low mileage GS1100 cylinder on ebay that didn't sell...http://cgi.ebay.com/ebaymotors/Suzuk...item45f2432699

      Stock 1100G pistons shouldn't be hard to find. Add about $100 for rings and you should be good to go for 1/3 of what a wiesco kit w/bore job will set you back.
      Ed

      To measure is to know.

      Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

      Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

      Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

      KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

      Comment

      • Big T
        Forum LongTimer
        Past Site Supporter
        Super Site Supporter
        • Mar 2005
        • 12392
        • West Slope, OR

        #4
        I went with the Wiseco 1085 because it's cheaper than a stock oversize set

        I think that's most peoples motivation
        1978 GS 1000 (since new)
        1979 GS 1000 (The Fridge, superbike replica project)
        1978 GS 1000 (parts)
        1981 GS 850 (anyone want a project?)
        1981 GPZ 550 (backroad screamer)
        1970 450 Mk IIID (THUMP!)
        2007 DRz 400S
        1999 ATK 490ES
        1994 DR 350SES

        Comment

        • Russ' GS1000E

          #5
          1085cc Sugg Retail
          $664
          DYNOMAN
          $469.95
          2.874" or 73.00mm
          3mm oversize
          Stroke - 64.8mmK108510.25:1Cylinder boring only
          Piston: 4064M07300 Rings: 2874XC Piston Pins: S555 Retainer Clips: CW18
          CFM20 Head Gasket: W2711 Optional Base Gasket: W6065 Sleeve: FL654SL


          Is this a fair price and good vendor?

          ( I don't do ebay.)
          Last edited by Guest; 04-20-2010, 09:09 PM.

          Comment

          • rapidray
            Forum Guru
            GSResource Superstar
            • Oct 2006
            • 8195
            • So Cal

            #6
            MORE displacement is ALWAYS better!!! Ray.

            Comment

            • Guest

              #7
              Originally posted by Nessism
              If you are cheap, this guy has a low mileage GS1100 cylinder on ebay that didn't sell...http://cgi.ebay.com/ebaymotors/Suzuk...item45f2432699

              Stock 1100G pistons shouldn't be hard to find. Add about $100 for rings and you should be good to go for 1/3 of what a wiesco kit w/bore job will set you back.
              Would GS1100G blocks and pistons fit onto a GS1000?

              Comment

              • kochic
                Forum Sage
                • Nov 2008
                • 1433
                • St-Jean-de-Matha,Quebec

                #8
                Originally posted by quexpress
                Would GS1100G blocks and pistons fit onto a GS1000?
                Yes, i will be using a 1100g block on my gs1000 this summer with wiseco pistons.
                Marc
                https://www.thegsresources.com/_foru...ie_twisted.gif AIR COOLED MONSTERS NEVER DIE https://www.thegsresources.com/_foru...ie_twisted.gif
                1978 GS1000C X2
                1978 GS1000E X2
                1979 GS1000S
                1979 gs1000
                1983 gs400e

                Comment

                • Guest

                  #9
                  Originally posted by kochic
                  Yes, i will be using a 1100g block on my gs1000 this summer with wiseco pistons.
                  Marc
                  Thanks Marc!

                  Comment

                  • srsupertrap
                    Forum Sage
                    Past Site Supporter
                    • Oct 2007
                    • 2208
                    • Erie, CO.

                    #10
                    Here is cheap upgrade but incomplete. Missing piston pin buttons

                    Steve

                    1979 GS1000E (45 Yrs), 1981 GPz550 (11 Yrs)

                    Comment

                    • will61310

                      #11
                      Those are 12 .5 to 1 ratio

                      Comment

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