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Trans Am reference

Firebird Trans Am
Engine Codes

Engine codes and production figures for 1967-1981 Firebird Trans Am models.

View engine codes

Reference

Firebird Trans Am Engine Codes & Production Figures

Find here some figures that I found over the years, taken from different sources, I found they are pretty accurate.

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Places where engine codes are usually found on 400-455 Pontiac engines
1st photo: places where codes are usually found in a 400-455 engine
Places where engine codes are found on 403 Olds engines
2nd photo: 403-455 Olds engines

1967 Engine Codes

Pontiac 400: WI, WQ, WU, WZ (manual), YT, XN (automatic)

1968 Engine Codes

Pontiac 400: WZ (manual), YT (automatic)

Pontiac 400 HO: WQ (manual), YW (automatic)

Pontiac 400 Ram Air: XN, XT (automatic), WU, WI (manual)

1969 Engine Codes

Pontiac 400: WZ (manual), YT (automatic)

Pontiac 400 Ram Air III: WQ (manual), YW (automatic)

Pontiac 400 Ram Air IV: WH (manual), XN (automatic)

1969 Trans Am Production Breakdown

OptionManualAutoTotal
Coupe Ram Air III520114634
Convertible Ram Air III448
Coupe Ram Air IV46955
Total Production697

1970 Engine Codes

Pontiac 400: WK, WS, WT (manual), XX, YS, YX (automatic)

Pontiac 455: WC, WJ, WL (HO) (manual), YC, YE (HO) (automatic)

1970 Trans Am Production Breakdown

OptionManualAutoTotal
Ram Air III1,7691,3393,108
Ram Air IV592988
Total Production3,196

1971 Engine Codes

Pontiac 400: WK, WS, WT (manual), XX, YS, YX (automatic)

Pontiac 455: WC, WJ, WL (manual), YC, YE (automatic)

1971 Trans Am Production Breakdown

OptionManualAutoTotal
455 H.O.8851,2312,116
Total Production2,116

1972 Engine Codes

Pontiac 400: WK (manual), YS, YX, ZS, ZX (automatic)

Pontiac 455: WD, WM (manual), YB, YE (automatic)

1972 Trans Am Production Breakdown

OptionManualAutoTotal
455 H.O.4588281,286
Total Production1,286

1973 Engine Codes

Pontiac 400: WK, WP, WS, Y6, YG (manual), Y3, XN, YS, YX, YZ, ZK, ZX (automatic)

Pontiac 455: WT, WW, ZZ (manual), YA, YC, YD, YK (automatic)

Pontiac 455 SD: W8, ZJ (manual), Y8, XD (automatic)

1973 Trans Am Production Breakdown

OptionManualAutoTotal
4551,4203,1304,550
SD-45572180252
Total Production4,802

1974 Engine Codes

Pontiac 400: WT, Y3 (manual), AD, AH, AT, YT, YZ, YF, YH, ZJ, ZK, YL, YM, A3, YT, AT, ZS, ZT (automatic)

Pontiac 455: AU, YW, YY (automatic)

Pontiac 455 SD: W8 (manual), Y8 (automatic)

1974 Trans Am Production Breakdown

OptionManualAutoTotal
4001,7502,9144,664
45504,6484,648
SD-455212731943
Total Production10,255

1975 Engine Codes

Pontiac 400: WT (manual), YS (automatic)

Pontiac 455: WZ (manual)

1975 Trans Am Production Breakdown

OptionManualAutoTotal
4006,14020,27726,417
455 H.O.8570857
Total Production27,274

1976 Engine Codes

Pontiac 400: Y9, YS, YZ, ZK, Y9 (automatic), WU, WT (manual)

Pontiac 455: WX

1976 Trans Am Production Breakdown

OptionManualAutoTotal
400----37,015
L.E. 400----1,628
T-Top L.E. 400----533
455 H.O.7,09907,099
SE 455 H.O.3190319
T-Top L.E 455 H.O.1100110
Total Production46,701

1977 Engine Codes

L78 Pontiac 400: XA

W72 Pontiac 400: Y6, YG (automatic), WA (manual)

Olds 403: VA, VB, U2, U3

1977 Trans Am Production Breakdown

OptionManualAutoTotal
L78029,31329,313
L8005,0795,079
W728,31910,46618,785
S.E. L780748748
S.E. L800180180
S.E. W72384549933
S.E. L78 w/ T-Tops06,0306,030
S.E. L80 w/ T-Tops01,2171,217
S.E. W72 w/ T-Tops2,6993,7606,459
Total Production68,745*

1978 Engine Codes

L78 Pontiac 400: YA, YU

W72 Pontiac 400: X7, WC

Olds 403: VA, VB, U2, U3

1978 Trans Am Production Breakdown

OptionManualAutoTotal
L780----
W7210,916*61,147*72,081*
L8008,9698,969
Y82 S.E. L780----
Y82 S.E. W724892,8563,345
Y84 S.E. L780----
Y84 S.E. L800210210
Y84 S.E. W72206888
Y88 S.E. L780----
Y88 S.E. L800880880
Y88 S.E. W721,2676,5197,768
Total Production93,341

1979 Engine Codes

W72 Pontiac 400: PWH (manual only)

Olds 403: Q6, QE, QJ, QK, QL

Pontiac 301: X4, X6

1979 Trans Am Production Breakdown

OptionManualAutoTotal
3011,5907,0158,605
403048,48848,488
4002,48502,485
T-Top 3011,5303,3014,831
T-Top 403030,72830,728
T-Top 4002,91702,917
S.E. 301213360573
S.E. 40309,8749,874
S.E. 4001,10701,107
10th Anniversary 40305,6835,683
10th Anniversary 4001,81701,817
Total Production117,108

1980 Engine Codes

Pontiac 301: XC, XM, XN, YN

Pontiac 301 Turbo: YL

Chevy 305: CEL, CEM

1980 Trans Am Production Breakdown

OptionManualAutoTotal
301014,86614,866
30501,6531,653
301 Turbo05,7535,753
T-Top 30108,6928,692
T-Top 3050896896
T-Top 301 Turbo07,1767,176
S.E. 30107272
S.E. 30501212
S.E. 301 Turbo0103103
S.E. T-Top 30102,0842,084
S.E. T-Top 3050463463
S.E. T-Top Turbo03,4443,444
Indy Pace Car Turbo05,7005,700
Total Production50,896

1981 Engine Codes

Pontiac 301: BD, BJ

Pontiac 301 Turbo: BO, CJ

Chevy 305: D6A, D6B, D6D, DHA, DHB, DHC, DHD, DHF, DHH, DHJ, DHK, DHU, DHZ, DJ, DKB, DND

1981 Trans Am Production Breakdown

OptionManualAutoTotal
30105,0875,087
3052,86602,866
301 Turbo03,8513,851
T-Top 30104,5894,589
T-Top 3053,22503,225
T-Top 301 Turbo06,6126,612
S.E. 30104141
S.E. 30515015
S.E. 301 Turbo06565
S.E. T-Top 30101,1601,160
S.E. T-Top 3059320932
S.E. T-Top Turbo03,0503,050
Turbo Pace Car02,0002,000
Total Production33,493
Engine code reference

Thanks to 78ta for THE ABOVE info

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