Ummm, let me think. Tobascofish thought about it. Bought a sweet Chevy engine. Put a lot of time and money into said engine. Then sold his 80.
Dan has been talking about a Mopar transplant into his. He just keeps talking.
I have seen a diesel dropped into an FZJ80, but it was a Toyota engine.
Clearly, if you want a non-Toyota engine into an 80 series you will most likely be treading on virgin ground. Replace the head gasket. Call it a day. Ash has done it. Onur has done it a bunch, and is probably only beat out by Robbie on the number of hg jobs. 80-series head gasket jobs are about as common as oil changes in 80's. The 80-series is the only Toyota I know of where replacing the head gasket is considered preventive maintenance. It will also let you easily replace the PHH while in there and killing two 80-series maladies at once.
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John,
Just keep driving the thing and don't worry about the HG issue. If you don't have any water loss, drive it like you stole it!



