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new engine?

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edwinmedina28

new engine?

I have a 1980 cb750 custom, I love it but wouldblike a bigger engine. Is there a bigger engine that would fit the frame? Like a cb1100? And if so, where can I aquire one? Thanks guys!

TOOLS1

Re: new engine?

Administrator

My advice to you is to just go get a bigger faster motorcycle.
TOOLS

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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
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seestheday

Re: new engine?

In reply to this post by edwinmedina28

I agree with TOOLS, but understand if you want to make something cool

.

A 900 F engine apparently fits with some frame mods. If you're really interested in doing some serious performance mods you should check out the cb1100f.net site.

That would be a good source for a 900F engine as well.

1981 CB750K with 900 cams
90K KM's, rebuilt head, rebuilt carbs, upgraded valve stem seals

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Hoosier Daddy

Re: new engine?

I would be willing to bet for the money involved you could pick up a used 900F ... Or a now almost 20 year old "Big One" would be even better, at least to me. (and Motorcyclist magazine) http://www.motorcyclistonline.com smart money '94-'95 cb1000

81 Honda CB750C - Current Project
67 BSA Spitfire MkIII - Next Up (Full Resto)
81 Honda GL1100 - Bob / Cafe´
80 Suzuki GS750L - Bratstyle
72 Honda CB450K5 - Basket Case
73 Honda CB350F Cafe' (Gone but not forgotten)

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mk3brent

Re: new engine?

I have a 900 in a CB750 frame, no modification necessary. Now, that may be because of a particular year the 900 is, I'm not sure.

There are 900's out there that are identical to 750's. I have them in my garage.

Hoosier Daddy

Re: new engine?

Don't forget not all CB900's are the same. The 900C was a 10 speed trans (HI and LO ranges) and was a shft drive... so a 900C engine would fit as easily as a 900F donor's mill.
Just sayin...