3RD GEN F-BODY VIN BREAKDOWN

1982 - 1984
 1 G 1 A P 8 7 F X C N 1 0 0 0 0 1
 | | | | | |-| | | | | +---------+---> Production Sequence
 | | | | |  |  | | | +---------------> Assembly Plant
 | | | | |  |  | | |                       N = Norwood
 | | | | |  |  | | |                       L = Van Nuys
 | | | | |  |  | | +-----------------> Model Year
 | | | | |  |  | |                         C = 1982
 | | | | |  |  | |                         D = 1983
 | | | | |  |  | |                         E = 1984
 | | | | |  |  | +-------------------> Check Digit
 | | | | |  |  +---------------------> Engine Code
 | | | | |  |                              F = 151 ci L4 LQ8 (1982-1983)
 | | | | |  |                              2 = 151 ci L4 LQ9 (1982-1984)
 | | | | |  |                              1 = 173 ci V6 LC1 (1982-1984)
 | | | | |  |                              H = 305 ci V8 LG4 (1982-1984)
 | | | | |  |                              7 = 305 ci V8 LU5 (1982), L69 (1983)
 | | | | |  |                              S = 305 ci V8 LU5 (1983)
 | | | | |  |                              G = 305 ci V8 L69 (1984)
 | | | | |  +------------------------> Body Type
 | | | | |                                 87 = 2 door coupe
 | | | | +---------------------------> Carline Series
 | | | |                                 Chevrolet:
 | | | |                                   P = Sport Coupe, Z28
 | | | |                                   S = Berlinetta
 | | | |                                 Pontiac:
 | | | |                                   S = Firebird
 | | | |                                   W = Trans Am
 | | | |                                   X = Trans Am Special Edition
 | | | +-----------------------------> Restraint System
 | | |                                     A = Manual belts
 | | |                                     B = Automatic belts
 | | |                                     C = Automatic belts (inflatable restraint)
 | | +-------------------------------> Make
 | |                                       1 = Chevrolet
 | |                                       2 = Pontiac
 | +---------------------------------> Manufacturer
 |                                         G = General Motors
 +-----------------------------------> Country
                                           1 = USA
                                           2 = Canada

1985 - 1986
 1 G 1 F P 8 7 H X F N 1 0 0 0 0 1
 | | | | | |-| | | | | +---------+---> Production Sequence
 | | | | |  |  | | | +---------------> Assembly Plant
 | | | | |  |  | | |                       N = Norwood
 | | | | |  |  | | |                       L = Van Nuys
 | | | | |  |  | | +-----------------> Model Year
 | | | | |  |  | |                         F = 1985
 | | | | |  |  | |                         G = 1986
 | | | | |  |  | +-------------------> Check Digit
 | | | | |  |  +---------------------> Engine Code
 | | | | |  |                              2 = 151 ci L4 LQ9 (1985)
 | | | | |  |                              1 = 173 ci V6 LB8 (1985)
 | | | | |  |                              S = 173 ci V6 LB8 (1986)
 | | | | |  |                              F = 305 ci V8 LB9 (1985-1986)
 | | | | |  |                              G = 305 ci V8 L69 (1985-1986)
 | | | | |  |                              H = 305 ci V8 LG4 (1985-1986)
 | | | | |  +------------------------> Body Type
 | | | | |                                 87 = 2 door coupe
 | | | | +---------------------------> Carline Series
 | | | |                                 Chevrolet:
 | | | |                                   P = Sport Coupe, Z28
 | | | |                                   S = Berlinetta
 | | | |                                 Pontiac:
 | | | |                                   S = Firebird
 | | | |                                   W = Trans Am
 | | | |                                   X = Trans Am Special Edition
 | | | +-----------------------------> Carline Code
 | | |                                     F = F-Body
 | | +-------------------------------> Make
 | |                                       1 = Chevrolet
 | |                                       2 = Pontiac
 | +---------------------------------> Manufacturer
 |                                         G = General Motors
 +-----------------------------------> Country
                                           1 = USA
                                           2 = Canada

1987 - 1992
 1 G 1 F P 2 1 H X H L 1 0 0 0 0 1
 | | | | | | | | | | | +---------+---> Production Sequence
 | | | | | | | | | | +---------------> Assembly Plant
 | | | | | | | | | |                       N = Norwood (1987 only)
 | | | | | | | | | |                       L = Van Nuys
 | | | | | | | | | +-----------------> Model Year
 | | | | | | | | |                         H = 1987
 | | | | | | | | |                         J = 1988
 | | | | | | | | |                         K = 1989
 | | | | | | | | |                         L = 1990
 | | | | | | | | |                         M = 1991
 | | | | | | | | |                         N = 1992
 | | | | | | | | +-------------------> Check Digit
 | | | | | | | +---------------------> Engine Code
 | | | | | | |                             S = 173 ci V6 LB8 (1987-1989)
 | | | | | | |                             T = 191 ci V6 LH0 (1990-1992)
 | | | | | | |                             F = 305 ci V8 LB9 (1987-1992)
 | | | | | | |                             H = 305 ci V8 LG4 (1987)
 | | | | | | |                             E = 305 ci V8 L03 (1988-1992)
 | | | | | | |                             8 = 350 ci V8 B2L/L98 (1987-1992)
 | | | | | | +-----------------------> Restraint System
 | | | | | |                               1 = Manual belts
 | | | | | |                               2 = Manual belts (built in safety)
 | | | | | |                               3 = Manual belts (driver inflatable)
 | | | | | |                               4 = Automatic belts
 | | | | | +-------------------------> Body Type
 | | | | |                                 2 = 2 door coupe (hatchback)
 | | | | |                                 3 = 2 door convertible
 | | | | +---------------------------> Carline Series
 | | | |                                 Chevrolet:
 | | | |                                   P = Camaro (all models)
 | | | |                                 Pontiac:
 | | | |                                   S = Firebird
 | | | |                                   W = Formula, Trans Am
 | | | +-----------------------------> Carline Code
 | | |                                     F = F-Body
 | | +-------------------------------> Make
 | |                                       1 = Chevrolet
 | |                                       2 = Pontiac
 | +---------------------------------> Manufacturer
 |                                         G = General Motors
 +-----------------------------------> Country
                                           1 = USA
                                           2 = Canada


All VIN info thanks to F-Body.org