Second Generation

1970-1971

2 2 8 8 7 0 N 1 0 0 0 0 1
|-| |---| | | | +-------+-----> Production Number
 |    |   | | +---------------> Year/Engine Type
 |    |   | |                      Chevrolet:
 |    |   | |                         Still looking
 |    |   | |                      Pontiac:
 |    |   | |                         1 = 8 cylinder, all years
 |    |   | |                         6 = 6 cylinder, all years
 |    |   | +-----------------> Assembly Plant
 |    |   |                        N = Norwood
 |    |   |                        L = Van Nuys
 |    |   +-------------------> Model Year
 |    |	                           0 = 1970
 |    |	                           1 = 1971
 |    +-----------------------> Model Number
 |                                 Chevrolet:
 |                                    Still looking
 |                                 Pontiac:
 |                                    387 = Firebird
 |                                    487 = Esprit
 |                                    687 = Formula
 |                                    887 = Trans Am
 +----------------------------> Carline Series
                                   12 = Chevrolet Camaro
                                   22 = Pontiac Firebird

1972-1979

2 V 8 7 X 3 N 1 0 0 0 0 1
| | |-| | | | +---------+-----> Production Number
| |  |  | | +-----------------> Assembly Plant
| |  |  | |                        N = Norwood
| |  |  | |                        L = Van Nuys
| |  |  | +-------------------> Model Year
| |  |  |                          2 = 1972
| |  |  |                          3 = 1973
| |  |  |                          4 = 1974
| |  |  |                          5 = 1975
| |  |  |                          6 = 1976
| |  |  |                          7 = 1977
| |  |  |                          8 = 1978
| |  |  |                          9 = 1979
| |  |  +---------------------> Engine Code
| |  |                             Chevrolet:
| |  |                                Still looking
| |  |                             Pontiac:
| |  |                                A = 3.8L Buick
| |  |                                C = 231 ci Buick
| |  |                                D = 250 ci
| |  |                                K = 403 ci
| |  |                                L = 5.7L Chevy
| |  |                                R = 5.7L Olds
| |  |                                X = 5.7L Buick
| |  |                                Y = 301 ci
| |  +------------------------> Body Type
| |                                87 = 2 door coupe
| +---------------------------> Carline Series
|                                  Chevrolet:
|                                     Still looking
|                                  Pontiac:
|                                     S = Firebird
|                                     T = Esprit
|                                     U = Formula
|                                     V = Trans Am (1972-1976)
|                                     W = Trans Am (1977-1979)
|                                     X = 10th Anniv Trans Am (1979)
+-----------------------------> Make
                                   1 = Chevrolet
                                   2 = Pontiac

1980

2 W 8 7 T A N 1 0 0 0 0 1
| | |-| | | | +---------+-----> Production Number
| |  |  | | +-----------------> Assembly Plant
| |  |  | |                        N = Norwood
| |  |  | |                        L = Van Nuys
| |  |  | +-------------------> Model Year
| |  |  |                          A = 1980
| |  |  +---------------------> Engine Code
| |  |                             Chevrolet:
| |  |                                Still looking
| |  |                             Pontiac:
| |  |                                A = 3.8L Buick
| |  |                                G/H = 5.0L Chevy
| |  |                                S = 4.3L
| |  |                                T = 4.9L Turbo
| |  |                                W = 4.9L
| |  +------------------------> Body Type
| |                                87 = 2 door coupe
| +---------------------------> Carline Series
|                                  Chevrolet:
|                                     Still looking
|                                  Pontiac:
|                                     S = Firebird
|                                     T = Esprit
|                                     U = Formula
|                                     W = Trans Am
|                                     X = Trans Am Indy/NASCAR
|                                                  Pace Car
+-----------------------------> Make
                                   1 = Chevrolet
                                   2 = Pontiac

1981

1 G 2 A W 8 7 T 4 B N 1 0 0 0 0 1
| | | | | |-| | | | | +---------+-----> Production Number
| | | | |  |  | | | +-----------------> Assembly Plant
| | | | |  |  | | |                        N = Norwood
| | | | |  |  | | |                        L = Van Nuys
| | | | |  |  | | +-------------------> Model Year
| | | | |  |  | |                          B = 1981
| | | | |  |  | +---------------------> Check digit
| | | | |  |  +-----------------------> Engine Code
| | | | |  |                               Chevrolet:
| | | | |  |                                  Still looking
| | | | |  |                               Pontiac:
| | | | |  |                                  F/2/5 = 2.5L
| | | | |  |                                  I/L/S/7/X/Z/1 = 2.8L
| | | | |  |                                  T/E = 3.1L
| | | | |  |                                  H/G = 5.0L
| | | | |  |                                  8 = 5.7L
| | | | |  +--------------------------> Body Type
| | | | |                                  87 = 2 door coupe
| | | | +-----------------------------> Carline Series
| | | |	                                   Chevrolet:
| | | |	                                      Still looking
| | | |	                                   Pontiac:
| | | |	                                      S = Firebird
| | | |                                       V = Formula
| | | |                                       W = Trans Am
| | | |                                       X = Trans Am Special Edition
| | | |                                       Y = Trans Am NASCAR Pace Car
| | | +-------------------------------> 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

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