Meaning of "numbrs matching" opinions please

[Rick H]

Everyone keeps blaming the Corvette guys when in reality it happens in ALL makes and models. Think of the Mopar guys who buy a hulk of a Hemi without drivetrain but it has the fender tag. In a few months, VIOLA, instance numbers matching car. So to point fingers at one group is ridiculous. That's not the reason I asked the question.

I can agree with the VIN stamped block and tranny but when it comes to other parts such as heads, exhaust manifolds, intakes, carbs, etc.. those without a VIN stamped into it, what does numbers matching mean?

There are some who believe that every part must be born with original to be considered numbers matching. I totally disagree.

I find the subject interesting and would like to hear more but please do not point fingers.

Thanks
Rick H.