Terrible motor swap idea kz440

The carbs for the '81 GPz550 are only for the '81; in '82 the 550 had different carbs and IIRC different heads.

The oil cooler appears to be identical to the one on the '81 GPz.

But the big telling point is the shifter: the GPz has the backwards-facing shifter because it has rearset pegs. The KZ550As from '80-'83 had the traditional pointing-forward shift lever.

Basically it looks like someone added GPz parts to a KZ engine.

I figured that someone put the gpz stuff on for fun. If it has an oil cooler i wonder what the engine internals look like... 
The guy updated the description and said that the engine ran before someone laid it down and scrapped it. He also verified that it will rotate freely, also mentioning that he felt compression but didn't verify the amount. For some reason it will not come with the oil cooler. Would I be able to use the one from my zx550? My brother is picking it up today and ill be able to tinker with it this weekend.
Maybe ill finally have a running machine