The 1FZ is a delightful powerplant. I don't think I would consider a swap unless there had been a catastrophic engine failure like a rod thru the side. In that case, a swap to a V8 could be financially justified.
On the other hand, I would be more inclined to select a 3FE powered vehicle for that swap. They are substantially cheaper than the later 1FZ powered versions and could really use the help(sorry -H-).
In closing, there is nothing on the planet that sounds as good as that lovely ehxaust note from a V8.
[quote author=Ryan link=board=2;threadid=4576;start=msg34532#msg34532 date=1061706756]
Is there a kit to install a chevy v8 in an 80?
There really isn't a kit, but there is an adapter between the A440F tranny and a SBC. The wiring, etc. is up to you. Contact Jeff Jones for his experiences. There are a few others who have done it, too.