Meaning of "numbrs matching" opinions please

[RamAirDave]

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Perhaps another factor in the change of meaning of "numbers matching"
is the age of the major components, wear and tear of SHP
parts, etc.. You have to admit, the further away we get
from the cars actual birthday, the more likely we are to
need replacement parts.

[/ QUOTE ]

While many of the SHP blocks were killed within the first several years of their lives, I would think there is a very small percentage of those that have been grenaded in the last 10-15 years or so.

I dont think the amount of "#s" engines has declined much in that time period, so I'm not sure that would be a reason for the "recent" change for the term "numbers matching".