v-6 in early A-body
I'm not promoting the 3.3/3.8L. The OP asked for ideas and I mentioned it since I own a T&C with one, and know there were RWD vehicles that used it. Killer6 is right to avoid the earlier heads (perhaps 1995-) since later ones have more rocker posts. If I were to undertake this, I would read up on newer Chrysler V-6 engines (~2005+), as I read that some are competitive w/ earlier V-8's. The Plymouth Prowler used a V-6 in RWD, I recall. But, be aware that moparmagnum may not accept any choice other than what he sells.