70 340 Block

i decided to check the numbers on my 70 340 block should someone be looking for this particular block for a matching numbers car Is there anyway to tell if this from an A or E Body? I bought it from a guy in Illinois IIRC

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The letter in the 7th to last position is the assembly plant code...

If you know what assembly plants built which car then you can figure out what car it was originally in....