I started reading the whole thread again since some posts were added while I was out.

Originally Posted By Alaskan_TA


So here is an elective homework assignment for you, note each of these things;

Date on the original Mylar.

Casting date on the engine.

Final assembly date on the engine.

If those three dates are original to any of the examples, neither of the dates on the engine will be dated after the date on the Mylar.



So, has anyone with their own theories done this yet?

Also, as Kevin stated;

Quote:
I had ask about trans numbers because they were to my understanding stamped at the same time with the same machine.


If your transmission & original & matches your car, the engines & transmissions were stamped one right after the other with the same stamp set. So if one matches & the other has a blank VIN pad, it was replaced at some point.