2 valve gs1100--gs1000 top end swap

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  • acp4me

    #1

    2 valve gs1100--gs1000 top end swap

    hi .will a two valve gs1100 top end bolt up to a 1978 gs1000? are the rist pin sizes the same?. my bike needs a ring job. my neighbor has a 1100 parts motor low miles bigger displacement. larger valves and carbs. what do you think? thanks darrell
  • Hoomgar

    #2
    Swap the whole engine. It should bolt right in

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    • humhead

      #3
      The top end of the 1100 2 valve should fit the 1000 motor without any problem. Use the block & head together, as Suzuki added an extra bolt on the 1100 to prevent oil leakage in the front of the head gasket. You'll need the carbs. (They're better anyway) & an airbox that will fit the new carbs & your frame. One from a 1980 GS1000E should do the trick.
      The entire motor won't fit. The 2 valve 1100 is a shaftie.

      Terry

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      • acp4me

        #4
        1100 top end on 1000

        hi thanks for the response i think i will try it . any other opinions .darrell

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