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    Head swap

    I'm sure this will have been asked before and i have searched the forums for the arnswer before posting but no joy.
    Question is, how easily will a GS850 8 valve top end go onto a GS750 8 valve bottom end, will the crankcase mouths need opening up to take the 850 barrels?
    The bottom end is a '77 model and the year of the donor lump for the 850 top end is unknown but has CV carbs so must be quite a late one.

    #2
    Search the forum for that, I think the upper case needs to be opened up a bit with later barrels
    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

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