Matching a 68 motor

[XP836]

It is confusing,I had posted codes to a team site.Figuring a 64-67 casting #3858180 with pad stamp of TIII8EE would interest a chevelle owner looking for a period correct 327.I had replies that its 1 30 5  , should be a Dec. 1966.I am totally lost now .That would be fine fit for my 01a    E   ST 67-...norwood build, or not ..lol..just have fun... phil