A12- were the last three digits of the engine part number placed on the 68's as well? 68 and 69 fender tags differ considerably, as I think there is only the engine code 83 for the HP440 stamped there in 68. Mine was a St Louis plant car, and I am interested to find out where dougsmopars car was built, as his "16" on the left valve cover would substantiate the practice at this time/location- if indeed his was built there also. Would be a "G" in the 6th place of the VIN. Anything else used but a black marker there? I wonder if it was placed at the motor assembly plant (michigan)instead of the car plant, as every other mark is usually white or yellow on these cars (rear end nonwithstanding- they had a whole range of colors to work with).