I still like the idea of a really high rpm 273 with boost with the Crower crank. It would require custom pistons, main caps made for the 2-1/4 inch bearing diameter and spacers for the upper shells, but 3.65X3.145 makes 263 cubic inches. Add boost because it's not going to make any compression. And all this stuff would be appallingly expensive, including the 6.3 inch Oliver rods. Compression height would come out to around 1.73 with the bonus of lighter chevy pins, and rod ratio is 2:1. which works really well for boost. You should be be able to stiffen the block with at least a third fill of hard block.
But Wow! If nothing else, it would definitely win the unfeasible race.
Crankshaft 340 Dodge 3.145 stroke - Clearance
Oliver Racing C6300SMLT8 Oliver Standard Light Series Connecting Rods | Summit Racing
