Here are some clear pics, if they are of any help:
Casting date, 6B11 (2/11/66):
Casting ID, C5AE-H:
And in some cases the block may have the date it was installed in the car on the production line (10/19/66):
Which in this case matched the Marti Report using the VIN# stamped on the block on the upper portion of the stamping boss below. I photoshop'd out all of the VIN characters except for the "R" for R-code. This engine was from one of only 24 R-code Galaxies produced in 1967. Most valuable antique I've ever owned.
