Bonneville Landspeed Racing - Let's Try a Thing.

I would build "some kind" of B or RB engine. I'd have to do lots of research first, but that's what I'd build. BOTH times Chrysler stopped Hemi production (1st and 2nd generation) because of both cost and complexity of the valve train and turned back to the B/RB platform. They are more compact than the Hemi, have a much simpler valve arrangement and are cheaper to build. Beyond that, without some more research and knowledge, that's "all I got".