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GS1000/1150 motor swap?

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    GS1000/1150 motor swap?

    Hello everyone, I was just wondering if the gs1000,1150 and 1100 are basically the same size, well what I want to know is if you can bolt in an 1150 or 1100 into a 1000 frame. or can you bore out a 1000 to an 1100 and put on the four valve head. Are these things possible or just wishfull thinking.

    #2
    I've never seen the 1100 or 1150 in person. I have seen quite a few photos and they look the same. I'm sure you can do this. Even if you had to make a couple of new motor mount brackets, it still wouldn't be very hard to do.

    I'm all for using a newer more powerful engine over hotrodding an older one to get the same power. Don't get me wrong, I love building HP's. But you always come to the point where you compromise drivability.

    I hope someone else can chime in who knows the diffeerence in these powerplants. But be assured that what you propose can be done.

    Steve

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      #3
      Everything will bolt up except the motor mount, just below the alternator cover. This mount is very simple to make.

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        #4
        Sweet. Looks like I got myself a fun summer project. It is very nice to hear that it should be an easy swap. I would just buy an 1150 but my wife thinks they are terribly ugly (i do not share that opinion so no hate mail please) I have thought about putting in a newer motor. there are a ton on ebay. but all the really powerful motors were meant to be hidden beneath airodynamic plastic. hence they are not all that great to look at. I think a mildly built 1150 would be more than enough power as this bike will only see the street. As long as I can ride a good long wheelie I will be happy! Is there any difference between the 1100 and 1150 besides displacement?

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          #5
          Saw that there was an 1100 motor on Ebay last week. Sure looked like a 1000 engine. had to email and ask him for sure. Send some pictures when you got it mounted!

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            #6
            I saw that motor to. Looked exactly like the one in my bike now. I will send pics but I won't be able to do it until may or june.

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