Just picked up a load of 350 diesel blocks and complete motor from a guy that used to work in a dealership in the 80s. There is two 350 D blocks with Cranks. $200 each for a block with a crank. One complete 350 D block engine $300. These are the .842 lifter bore, which will save you about $800 over DX block in lifter bushing. These do have some rust on them since they have been sitting since the 80s but they are such thick walls you’ll definitely be boring and far beyond any rust in the cylinders. Being sold as cores since I don’t know the history on these. $600 if you take everything. Pick up in Southeastern PA or can ship via fastenal.

Complete motor sold and one of the blocks and Cranks is pending.