danieljpeter
+1y
Another option, if you don't want to Z the frame is to move the body mounts on the core support up. You can section 3" out of them perfectly. I think this is easier than messing with the frame, but that's my opinion.
I ran a 1982 Nissan 200sx radiator on mine. It fits under the hood well with a 3" body drop without Z'ing the frame. The inlets and outlets line up good with the stock radiator hoses. I think I just had to trim the upper hose a bit and they hooked right up. It is thicker than the stock radiator, and provided plenty of cooling. It ends up close to the fan, so you have to mount it well (no zip ties!) Drove it arizona and back in the summer for those havasu runs back in the day, no overheating.
You have plenty of options...