I don’t know, I’ve never cared about such things before this car. Don’t even know where to look for a k frame date code.
Your SPD of 11/27/69 is calendar day 332
Calendar day by number 1968 linkYour K-frame date will usually (but not always) be the closest day to your SPD that has been found on other Lynch Road assembled car's SPD's. As stated "usually" but NOT always. Would just be interesting to see what your K-frame stamped date is. It's located on the front of the K-frame (see photo with text) and just a guess it might be
328 8 1 or day of the year
328- Nov. 23,
"8" =1968 and
"1" = first shift. And that's a WAG (wild @$$ guess)
119 9 1 in the second photo = April 29, 1969 Shift 1
139 9 1 = May 19, 1969 Shift 1