My '71 ain't a '71...or is it?

Body Type: V = Plymouth Valiant / Duster
Price Class: H = High
Body Type: 23 = 2 Door Hardtop
Engine: C = 225 145HP 1-1BBL 6 CYL
Year: 1 = 1971
Sequence Number: 253391 = 153391st Vehicle Built