Will a GS1150EF engine fit in my gs750s frame????

[gsx82]

Hi guys, Does anyone know if a 1984 gs1150ef engine will fit in a 1982 gs750s frame. The engine looks very similar to my gs750 lump so I though it might work.

I found a 84 1150ef for sale in my area for $1600 canadian, 6,000km on rebuilt engine. Is that a good deal? Below is some info on the bike in question...



Thanks
Dave

[Hap Call]

I've never done the swap but there have been several talented forum members that have. I believe that you will have to fabricate some motor mounts but that should be the extent of it.

Hap

[ScottMc1100L]

Dave what's wrong with the 1150 that you want to tear its heart out? An 1150 as is will always be worth more than a "frankenbike" IMO. Ofc course if the bike is crashed that's another story

[gsx82]

Dave what's wrong with the 1150 that you want to tear its heart out? An 1150 as is will always be worth more than a "frankenbike" IMO. Ofc course if the bike is crashed that's another story

Well, the 1150 is not crashed but it looks like it would need some TLC. Instead of me spending a ton of cash souping-up my 750 motor to get no more than 90-100 ponies, It only makes sence to drop in a motor that has stock 114HP and with a few mods I think I could get it up to about 125HP.


This is a picture of the gs1150 I found.

[Mike McNaney]

That a real popular swap I guess. Isnt it called a 7/11 ?
Ive been looking and wracking my brain but I cant remember where I saw it. A company on the internet sells the conversion motormounts for this swap. Im sure there is a swap covered here on GSR somewhere in the archives.

[madjack57754]

The cases should have the same dimensions. I remember something about having to create spacers for the lower motor mounts(?)I don't remember exactly the problem. Shouldn't be hard to overcome