Engine block stampings

[bergy]

Castings were not put into foundry inventory on a FIFO basis - there will always be legitimate blocks that have a large spread between cast date and machine date. Blocks that got set aside for allowable cosmetic welding as well as inventoried blocks sat around for quite a while. There will never, however, be second shift Saginaw castings that were assembled on the same day at Flint.