FixVault

Engine Code Location

Engine Code letter is fifth digit in a thirteen digit Vehicle Identification Number, stamped on a metal plate which is riveted onto upper left hand corner of instrument panel and visible from outside vehicle. Number is also stamped on block behind intake manifold.

Engine Code Displ. & Carb.
R 472" V8 4-Bbl.
S 500" V8 4-Bbl.
Fig 1: 1973-74 ENGINE SERIAL & VIN NUMBER LOCATION
G09340404Courtesy of GENERAL MOTORS COMPANY