S/B decking

Found my Direct Connection engine book......as they are talking about the "X" block, saying that the decks are .200 thicker giving an over all thickness of .700, I take that to mean the production deck is .500 thick. When decking, for each .010 cut from the deck, .0144 should be cut from the front and rear block rails.

This is from a 1982 DC engine manual.

Hope this helps.