1100 8-16 valve

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  • amxsteve
    • Feb 2026
    #1

    1100 8-16 valve

    is there a difference in the bottom ends of the 8 and 16 valve 81 1100,s there is an 8 valve 1100 motor for sale locally cheap
    Tags: None
    • hampshirehog
      Forum LongTimer
      Past Site Supporter
      • Oct 2007
      • 12675
      • Hampshire. UK
      #2
      What are you trying to do? The 8 valve will be a shafty don't forget.
      79 GS1000S
      79 GS1000S (another one)
      80 GSX750
      80 GS550
      80 CB650 cafe racer
      75 PC50 - the one with OHV and pedals...
      75 TS100 - being ridden (suicidally) by my father

        Comment

        • Big T
          Forum LongTimer
          Past Site Supporter
          Super Site Supporter
          • Mar 2005
          • 12392
          • West Slope, OR
          #3
          Those motors have different stud patterns
          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

            • rapidray
              Forum Guru
              GSResource Superstar
              • Oct 2006
              • 8195
              • So Cal
              #4
              Cases & top ends do NOT interchange! As stated above, the cylinder studs are spaced differently. Ray.

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                • Graham
                  #5
                  Crankshaft gear in different location, cases, drive-output, transmission shafts, clutch hub, plus a few other parts. Very few parts interchange between the 8v and 16v GS1100.

                    Comment

                    • tkent02
                      Forum LongTimer
                      Past Site Supporter
                      • Jan 2006
                      • 35571
                      • Near South Park
                      #6
                      Originally posted by Graham
                      Very few parts interchange between the 8v and 16v GS1100.
                      Maybe the brake and clutch levers.
                      http://img.photobucket.com/albums/v5...tatesMap-1.jpg

                      Life is too short to ride an L.

                        Comment

                        • Graham
                          #7
                          Originally posted by tkent02
                          Maybe the brake and clutch levers.
                          Yea like clutch baskets, main bearings, rings and a few more.

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