If you do I'd just go with a 440 rod and a KB Hypereutectic piston or get a custom ~1.53" CH slug made, if your gonna rev it you might as well put a long rod in it.

I think an offset grind to 3.51" with a 2.200 BBC journal and a 6.535 to 6.800 rod with a .990 pin , that would be a killer combo with a lightweight bob. Camming will be tricky probably go with a fairly short duration but put it in fairly late ICL