1980 650E engine in a 1978 650C frame

Does anyone know if I would run into an issue with transplanting a 1980 650E engine to a 1978 650C frame? If it's possible, is there anything I should be aware of before I start? Thanks in advance for any advice.

The only difference is the charging system.

Yes, should be no problem.
As Bob said, the charging system is a little different.
If you still have the '78 charging system, you should be able to swap everything over.

When I checked the parts diagram, it shows these models as using the same stator:
Model (12):
KZ650-B1 (1977)
KZ650-B2 (1978)
KZ650-B2A (1978)
KZ650-B3 (1979)
KZ650-C1 (Custom) (1977)
KZ650-C2 (Custom) (1978)
KZ650-C3 (Custom) (1979)
KZ650-D1 (SR) (1978)
KZ650-D1A (SR) (1978)
KZ650-D2 (SR) (1979)
KZ650-E1 (LTD) (1980)
KZ650-F1 (1980)


Now '77 models are completely different, but maybe the '80 are the same as the '78s.
I'm not that familiar with the '80 and later models.


This post on the kz650.info site lists the different electrical charging systems on the 650s:

forums.kz650.info/index.php?topic=5293.0

wheres 650ED, or CSR Martin, when you need them ???

Well it sounds like I need to look into the charging system a bit more. Thanks for the help. I see what you mean about the diagrams as well. I guess I should have figured that out myself.

I picked up this old guy over the weekend for just the right price and am trying to figure out what direction to head, either title the bike or tear it down and put everything in another frame. The latter would be more fun I think.