Joe
The block is an odd ball too. I have 2 but I have the Bryant cranks and Carillo rods too. The blocks are cut for 1.06 lifter bushings. Also cut for roller cam bearings. The crank is built with a snout for a chevy ATI damper with belt drive for external oil pump. No provision on the crank for the oil pump drive. The block and crank are machined for chevy LS mains. That means a Gen 3 crank will nor fit. They did that to get the full 360 degree thrust bearing on #3 so the journals are different diameters and the block and cap have been cut to get the LS thrust in. There were 5 of these setups so somewhere is a crank that won't fit anything since you have the block.