Short story: After having my 1967 mustang
restored and spending tons of time on it..., my mother is buying a 1966 coupe.
As far as I can tell, all the numbers match. Door, firewall, dash...
How can I find out if the engine is the original block?
(I read somewhere that 1964 1/2 through 1966 vin data was limited... 1967+ were more detailed... I don't know if that will be a factor?)