Well, for one thing, the frame has many differences. Motor mounts, trans-x member, fuel tank, fuel lines, electronics, exhaust, brake system (larger front rotors), speedo cluster, transmission. All these are different than the carb 4-cyl. This conversion has been done, but for the effort, there are better alternative conversion engines.

1988 Mighty Max turbo 2.6 service body
1980 Power Wagon W400
Sundry Mitsubishi Montero Gen 1 parts, Gen 1 and Gen 2 Max parts
Parts vehicles: 89 LS Montero 4-door, 2002 Sport AWD
For Sale: #277 Montero