1964-69 small-block restoration details...PICS INSIDE

I have a 273 2 bbl that came out of a '69 Dart 4 door that was parted out by a friend years ago.
It is all original, and it's painted blue by the factory, so it must have been a late in the model year build.
I have had (and still do have) some '69 Coronet 4 doors with 318s that had both red and blue engines.
The change over date is roughly March of '69 when they started painting the 318s blue, so it must be the same for 273s.........