trim tag dates
Also understand that a vehicle carries no identification that documents the vehicle assembly date. The closest to this would be the ship date retrievable from the dealer invoice and is generally a week after the trim tag date code.
For example, my Pace Car trim tag date code is 04/05 and the ship date is 04/12. So assembly, inspection and testing was completed around 04/07 give or take a day and not knowing if assembly began in the AM or PM on 04/05. Remember, 04/05 is the date body assembly was completed, one coat of paint applied and the trim tag riveted to the near-completed body assembly.
Hypothetical food for thought:
September 1, Friday night, birdcage and underbody come up from the basement and added to the body line. Rear clip is assembled and bonded on just before the shift ends at midnight.
September 2, Saturday body completed and enters paint prep. Primer coats applied and baked by midnight.
September 3, Sunday plant closed.
September 4, Monday Labor Day plant closed.
September 5, Tuesday color coats applied and baked, blackout completed, and painted body added to assembly line. Trim tag attached showing a B05 code.
In this scenario, the body was completed on Saturday, but it was Tuesday before the trim tag was attached.
Found an interesting tid bit about the painted trim tag:
"The trim tag station was moved some time during 1975-76 model year to accommodate the need for space to match the increase in production during the mid to late 70's. The station was moved between paint booth 1 and booth 2. As a result, body build tags for Corvettes built prior to 1975 were not painted while trim tags after 1975-76 was painted after the primer coat and first paint coat - "
That being said, how close typically are the engine assembly dates to the trim tag dates?
The Best of Corvette for Corvette Enthusiasts
The engine in my 68 was assembled in Flint on April 9 (1968). The time build code on my car is April 20 (a Saturday). The NCRS Shipping Data report confirms it was a finished car on Tuesday, April 23.














