81 CB750F to 81 CB900C Engine

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81 CB750F to 81 CB900C Engine

honda_newbie
Prefacing this question, I'm extremely new to any motorcycle work, so this may seem like an odd question.  Is it possible to switch a 1981 CB750F Engine, in the original frame, with a 81 CB900C engine?
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Re: 81 CB750F to 81 CB900C Engine

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A CB 900 "F" or "K" engine is a direct bolt in, but the "C" model engine has the duel range transmission with the shaft drive, and would take some major work to install in the "K" of "F" frame.
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1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
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