Will the KZ1000J motor Fit a 77 KZ1000 Standard

I am looking to freshen up my 77 KZ1000B. I have been thinking about a new / used motor and was wondering if the KZ1000J motor was a straight swap. Years ago on the old KZR sight when I was a member I thought I remembered that there might be some modifications required.

Thank you, appreciate any insight.

The front engine mounts are different. I think the rears work but the fronts are a different design.

Later, Doug

hahn racecraft use to make a front mount conversion so you could use a J engine in a kz /z frame :S .....I don't think they make the kit any longer :blink: .... should not be hard to make one

Thanks for the help guys, May have to venture out and try the swap, looks like I may need to shave the front tabs on mine, guess I won't know until I get it home, I thought there was some issue with the valve cover clearance on the frame?