Yes, this is an old thread. But, for anyone reading it now, they should know that numbers-matching can mean much more than the original engine and transmission that came in the car from the factory.
The navel-gazing has gone crazy on these cars, and correct VIN numbers on the frame may also be taken into consideration. Yes, the frames are stamped too. Also, many want correct date and casting codes on a variety of items like wiper motors, master cylinders, alternators, starters, differentials..........even window glass, etc. The instrument cluster is coded, as well. Etc.
Of course, later, you can buy most any parts with the "correct" numbers for your needs.
Buyer beware. If you worry too much about matching numbers, you'll either get taken by a talented scammer or you'll pay too much. If you're not buying for a NCRS Top Flight award, or placing the car in a time capsule, buy the best (and most solid) non-matching numbers car you can afford and then drive it like you stole it.
I've had 45 years of outrageous enjoyment from mine and I don't lose any sleep over numbers.....except the ones that click by on the premium gas pump.
