| Yr | Cyl | Desc | UNIV | DF | PK |
|---|---|---|---|---|---|
| 1980 | 8 | All models | 6006 | N/A | PK-81 |
| 1978-1979 | 8 | All models with 301 cid | 6905 | N/A | PK-80 |
| 1978-1979 | 8 | All models with 305 cid and 2BBL | 6905 | 4111 | PK-85 |
| 1978-1979 | 8 | All models with 305 cid and 4BBL | 6906 | 4104 | PK-81 |
| 1975 | 8 | All models | 8006 | 9103 | PK-79 |