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Decoding VIN Numbers

Do you need to determine if you Corvette is really an L-82? Here's a simple way to decode your VIN number. However, this only works for 1973 - 1980 Corvettes.

First, here are a few facts about VIN numbers:

  • Each Corvette has a unique Vehicle Identification Number and they are assigned in sequence, starting with one, during production.

  • The last 6 digits of the VIN make the Corvette unique. This number is the Production Sequence Number.

Position

Description Code
1 General Motors Division 1 = Chevrolet
2 Car line or series Z = Corvette
3 - 4 Body style 37 = Two door coupe (1973-1977)
67 = Two door convertible
87 = Two door coupe (1978-1980)
5 Engine type 1973: J = L48; 350ci, 190hp
         T = L82; 350ci, 250hp
         Z = LS4; 454ci, 275hp
1974: J = L48; 350ci, 195hp
         T = L82; 350ci, 250hp
         Z = LS4; 454ci, 270hp
1975: J = L48; 350ci, 165hp
         T = L82; 350ci, 205hp
1976: L = L48; 350ci, 180hp
         X = L82; 350ci, 210hp
1977: L = L48; 350ci, 180hp
         X = L82; 350ci, 210hp
1978: L = L48;350ci, 175hp, 185hp
         4 = L82; 350ci, 220hp
1979: 8 = L48; 350ci, 195hp
         4 = L82; 350ci, 225hp
1980: H = LG4; 305ci, 180hp
         8 = L48; 350ci, 190hp
         6 = L82; 350ci, 230hp
6 Year of Car 3 = 1973
4 = 1974
5 = 1975
6 = 1976
7 = 1977
8 = 1978
9 = 1979
A = 1980
7 Assembly plant location S = St. Louis
8 - 13 Production sequence number 400001 - ?