Pontiac Engine Production Casting Numbers
1955
| Displacement |
Casting Number |
| 287 |
518037 |
|
1956
| Displacement |
Casting Number |
| 317 |
521560 |
|
1957
| Displacement |
Casting Number |
| 347 |
523293 |
|
1958
| Displacement |
Casting Number |
| 370 |
528456 |
|
1959
| Displacement |
Casting Number |
| 389 |
532000 |
|
1960
| Displacement |
Casting Number |
| 389 |
536387 |
|
1961
| Displacement |
Casting Number |
| 389 |
538181 |
| 421 Super Duty |
538181 |
|
1962
| Displacement |
Casting Number |
| 389 |
538181 |
| 421 Super Duty |
538181 |
|
1963
| Displacement |
Casting
Number |
| 326 |
548211 |
| 389 |
543680 |
| 421 |
544988 |
|
1964
| Displacement |
Casting
Number |
| 326 |
9773153 |
| 389 |
9773155 |
| 421 |
9773157 |
|
1965
| Displacement |
Casting
Number |
| 326 |
9778840 |
| 389 |
9778789 |
| 421 |
9778791 |
|
1966
| Displacement |
Casting
Number |
| 326 |
9778840 |
| 389 |
9778789 |
| 421 |
9778791
(early) |
| 9782611
(late) |
|
1967
| Displacement |
Casting
Number |
| 326 |
9786339 |
| 400 |
9786133 |
| 428
(4 Bolt) |
9786135 |
|
1968
| Displacement |
Casting
Number |
| 350 |
9790079 |
| 400 |
9790071 |
| 400
Ram Air (4 Bolt) |
9792506 |
| 428
(4 Bolt) |
9792968 |
|
1969
| Displacement |
Casting
Number |
| 350 |
9790079 |
| 400 |
9790071 |
| 400
Ram Air IV (4 Bolt) |
9792506 |
| 400
Ram Air V |
9792968 |
| 400
Ram Air V |
545887 |
| 428
(4 Bolt) |
9792968 |
|
1970
| Displacement |
Casting
Number |
| 350 |
9799916 |
| 400 |
9799914 |
| 400
Ram Air III |
9799914 |
| 400
Ram Air IV |
9799915 |
| 400
Ram Air V |
481708 |
| 455 |
9799140 |
|
1971
| Displacement |
Casting
Number |
| 350 |
481990 |
| 400 |
481988 |
| 455
HO |
483677
(early) |
| 485428
(late) |
|
1972
| Displacement |
Casting
Number |
| 350 |
481990 |
| 400 |
481988 |
| 455 |
485428 |
|
1973
| Displacement |
Casting
Number |
| 350 |
488986 |
| 400 |
481988 |
| 455 |
485428 |
| 455
Super Duty |
490132 |
|
1974
| Displacement |
Casting
Number |
| 350 |
488986 |
| 400 |
481988 |
| 455 |
485428 |
| 455
Super Duty |
490132 |
|
1975
| Displacement |
Casting
Number |
| 350 |
488986 |
| 400 |
488986
(early) |
| 500557
(late) |
| 455 |
500813 |
|
|
1976
| Displacement |
Casting
Number |
| 350 |
488986 |
| 400 |
500557 |
| 455 |
500813 |
|
|
