[Chevelle-List] Can one of you smart guys answer this? plz

[MACSRUL]

Hi All,


     I sent this to the list yesterday, Does any of you have a guess as to what these letters pertain to:




Here is an email I received from someone else with this information for a 65 396
can someone decipher this. The info is as follows:

Something interesting we came across on the block was: the engine code
format T1004IN are 3/16" high as per normal. Next to them, where the vin code
format are normally located is 7 digits, instead of numbers are the letters
LLLLLLL (7 times) these letters are 5/32" high as per normal for vin #'s

intake date is 1-22-5
block date is 1-25-5
head date G-21-5 and F-15-5