Numbers matching ?

Strange, no one knows ?
I'd think someone from this forum would have known if these Hemi Barracudas (68) even the Hemi Darts, came with/were matching number engines with cars when originally sold the first time.
I'll wait, I'm willing to wager everything I have that someone will answer this, correctly and with proof with why his answer is what it is.

Staging, Waging and waiting...
MAPS