Classic Muscle
Search cars, engines, parts...

Search Classic Muscle

Enter at least two characters to search the archive.

Enter at least two characters to search the archive.

Authenticity reference

numbers-matching serial-number locations

numbers matching · reported

1971 440+6 engine in a Plymouth Road Runner; reviewed as representative Six Barrel engine-bay media, not originality proof for a specific car. 1971 Plymouth Road Runner 440 Six Barrel

Reference Details

Common issue
Correct exterior or induction appearance with a replacement engine, replacement transmission, unmatched body stamp, or paperwork not tied to the car's VIN.
Confidence
reported
Correct value
A numbers-matching Mopar should reconcile serial-number evidence across the dash VIN, door VIN label, fender tag, engine VIN stamping, transmission VIN stamping, body VIN stamping where applicable, and original paperwork; the Hamtramck Registry example notes engine and transmission stampings may carry the last eight VIN digits rather than the full VIN.
Where to check
Dash VIN, driver-door Mylar VIN sticker, fender tag, engine VIN pad/stamping, transmission VIN stamping, radiator-support/body stampings where applicable, broadcast sheet, consumer information sheet, window sticker, warranty, and dealer paperwork.

Cars With This Authenticity Marker

1 linked car page.

Sources & Documentation