There was a FMC engineering test mule quite a few years back (before the 4.6 went in the mustang, I believe) where they shoehorned a 5.0L in a Ranger. I think if it had a full-time 4wd system, it shouldnt be too bad.
Another one they put together was a DOHC 4V V10 modular based on the short 4.6L deck in a mustang. With stock 4.6L stroke and bore it happens to come to exactly 351CI. The block, heads, cams and crankshaft were all one off castings. Was called internally the 'BOSS 351'. I would have liked to have seen that produced. That would be a great engine for my car. Muhahaha.
Another one they put together was a DOHC 4V V10 modular based on the short 4.6L deck in a mustang. With stock 4.6L stroke and bore it happens to come to exactly 351CI. The block, heads, cams and crankshaft were all one off castings. Was called internally the 'BOSS 351'. I would have liked to have seen that produced. That would be a great engine for my car. Muhahaha.