Engine transplant.

[Guest]

Hi. Thinking about putting a different engine into my 1977 GS750E and i'm thinking 1980's GSX750 lump or even a GSXR750 one. Can anyone please advise on how easy/difficult it would be to put either of these in, any wiring mods that may be needed and possibly what model of said
engine(s) would be best
The bike's got 1980's GSX11 running gear front and back so it it can handle (literaly) a faster engine without having to plan braking two miles in advance.
Thankyou.

[Steve]

Brakes and suspension are but two small parts of the handling equation.

The newer frames are much better, so your currrent frame will still be a limitng factor.

As for engine swap, ... someone else will have to address that part.

.

[Ghostgs1]

Do a search on this subject, it has been discussed at length before. I am sure the 80's engine is pretty easy to swap in, possibly some motor mounts to fab. The oil cooled GSXR has been done also. Once you decide which engine you are going to swap in, examine the wiring for the model the engine is comming from and compare to yours. Should not be that much involved. Ray

[boggart]

True, but i'm mostly considering the heart transplant as a way to make the bike even more individual than for all out speed. Been there and done that with a GSXR750.

[boggart]

Okay, thanks, i'll do that.

[Nessism]

The second generation GS750 engine is one of the only GS engines that were NOT bullet proof. Stay clear of those.

A 7-11 is a popular conversion (1100 engine in GS750 chassis). Lots of info in the archives on this. A GSXR engine install is also possible but requires more fabrication work in terms of engine mounts and such.

Good luck

[elevatorman71]

in my frame i had an 850 and i swapped it out for an 1100. real easy to do.

[SqDancerLynn1]

I would look for a GS1000 or 1100 motor even a 1100 16 valve, Chain drive.. The 80- up GS750 were a plain bearing crank