.040 shells

  1. T

    Pontiac 400 mains .040"?

    Hello, I've found this forum on the internet and am hoping somebody can help me with a 1974 engine build? I'm finding it hard to locate .040" shells. I know King made them but they don't have stock. Does anybody know where I can find a set? Or could I grind the crank to a speck closer to...
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