How do I decode a classic Mopar VIN?

Question

Mike Sullivan · Accepted Answer

Classic Mopar VINs (1968 and later) follow a consistent 13-digit format that encodes the make, car line, body style, engine, model year, assembly plant, and production sequence. The engine code in position 6 is the critical digit for authenticity verification — it identifies the factory-installed engine and must be cross-referenced with the fender tag and broadcast sheet for a complete authentication picture. Understanding the Mopar VIN is the first step in evaluating any classic Chrysler, Dodge, or Plymouth. Here's how to read it, position by position, for 1968-1974 B-body and E-body cars.The 13-Digit Mopar VIN Format (1968-1974)Position by position: 1 = Make (L=Dodge, P=Plymouth, C=Chrysler, E=Imperial). 2 = Car line (B=Barracuda, H=Challenger, E=Belvedere/Satellite/Road Runner, W=Coronet/Charger). 3 = Price class (L=Low/Economy, H=High/Premium, P=Premium, S=Special). 4-5 = Body style (23=2-door hardtop, 27=convertible, 29=2-door sport coupe). 6 = Engine code (see below). 7 = Model year (8=1968, 9=1969, 0=1970, 1=1971, etc.). 8 = Assembly plant (B=Hamtramck, G=St. Louis, E=Newark). 9-13 = Production sequence number.Critical Engine Codes (Position 6)H: 426 Hemi (the one everyone wants to see)L: 440 cu in (4-barrel standard)V: 440 Six Pack (three two-barrel Holleys)N: 440 Magnum (383-based, specific to some models)G: 383 Magnum (4-barrel)B: 383 2-barrelE: 340 cu in (the small-block performance engine)P: 318 cu in (base V8)Cross-Reference with the Fender TagThe Mopar fender tag (also called the broadcast sheet in some references, though the actual broadcast sheet is a separate document) is mounted in the engine bay and encodes every factory option. The engine code on the fender tag must match the VIN. Any discrepancy — particularly a VIN showing code H (Hemi) without corresponding Hemi codes on the fender tag — is a serious red flag that requires a Mopar specialist to evaluate before any purchase.PHS Automotive ServicesPHS Automotive Services maintains production records for Chrysler vehicles and can produce documentation reports similar to the GM Protect-O-Plate system. For any Mopar over $50,000, a PHS report is the minimum authentication standard alongside the fender tag.