View Full Version : CB 750 Motor/ Frame compatability question.

05-20-2010, 12:21 PM
So my buddy blew out his SOHC 750.
I have a DOHC 750 motor just lying around that we want to use on his bike.

Does anyone know if it would be a 1 for 1 swap into his frame? or are we gonna have to fuck around with moving motormounts and stuff.

Any help would be awesome

05-20-2010, 12:56 PM
Don,t believe it will fit. The DOHC motors are taller.

05-20-2010, 2:39 PM
No, it won't just "drop in".

05-21-2010, 7:48 AM
Nah, it's gonna take work. The DOHC motor has 1.5" higher exhaust ports, so the exhaust won't work. It's also wider, although the front-to-rear spacing on the lower 2 mounts is the same. The upper mounts are pretty different. Not saying you can't do it, but it ain't a bolt in and go deal.

05-21-2010, 2:11 PM
fair enough. I was pretty sure it wasn't gonna be a super simple operation. I just didn't want to give it to him and not have him know what he was getting into.
thanks guys.