440 m code block

Well thanks for your input. It holds true to what I have read.my literature states that january 1, was the cutoff. Before that has full vin, after january 1 it has the last 8. But this guy says he has a m code that was built on 03/29/1969 ( same as mine ) and it has full vin. Plus he has had others , and they all had full vin. He maybe playing me ?

I have owned a 69 383 4-speed GTS for 42 years and it has the same build date of 3/29/1969 and it has an 8 digit VIN on the engine and trans. It was being built on the same lines at the same time as the M-Code's so I would not trust that a car built around that date has a full VIN. Probably a re-stamp if it indeed does...My 2 cents...