A Deuce! Well why not use a Ford 300 inline six. It has 4" bores standard. It has 7 main bearings standard. It has a 12 port head standard. It has a 4" stroke standard. It has FACTORY AVAILABLE cast header-style dual exhausts, forged steel crankshafts, fuel injection - even a factory crossflow billet aluminum race-only head. The back of block is the same as a small block V8 so trans choices are many.
There are tons of aftermarket parts available.
You have the potential for in excess of 600 naturally aspirated HP (Well, OK, maybe 300 HP on the street.)
Good choice.
For the money - best choice.
Good luck.
