After you get them boiled out, the only way to know which blocks have the thick bores is to get them sonic checked. There is a fast and dirty way to choose which ones to try... select the blocks that have the smallest gap between bores by trying to slip in drill bits as a gauge through the freeze plug holes. Typically 360/390 blocks can handle a .050-.060 overbore but the ones that can handle the .080 overbore to make it into a 406/428 are far and few between.

The block with vertical ribs should be late production (post 69 I think) or could be D2TE or D4TE casting. If all the blocks have four mounting points for the motor mounts, they are post 1965 blocks. before that they had two bolt motor mounts.