MY Dad had a 51- 4dr Chieftan Stright 8--straight drive , My older sister had a 50- black 2 h.t. If I could buy that car back today I would leave that boat anchor under the hood less than 24 hours. I'd rather have a good used 389,400, or 455 than anything You could possibly do to that straight 8.My prefference would still be a chev motor because everything is so much cheaper.I've been in the car business or car related business all my life. We have a saying, There is an ass for every seat. If your ass would rather set behind a straight -8, GO FOR IT! AND ENJOY. It sounds like a fun car either way.MERRY CHRISTMAS.