VIN Decoding at Great Old Cars: 1974-1980 Chevrolet Corvette

Position	Description	Code
1	General Motors Division	1 = Chevrolet
2	Car line or series	Z = Corvette
3 - 4	Body style	37 = Two door coupe 67 = Two door convertible
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/up