| Yr | Cyl | Desc | UNIV | DF | PK | | 1981 | 6 | All models with 225 cid, Main plus Pre Cat, except California | 6005 | N/A | N/A |
| 1981 | 6 | All models with 225 cid, Rear Converter | 6005 | N/A | PK-132 |
| 1981 | 6 | All models with 225 cid, Front Converter | N/A | 1002 | N/A |
| 1980 | 8 | All models with 360 cid, Rear Converter | 6005 | N/A | PK-136 |
| 1980-1981 | 8 | All models with 318 cid, Main plus Pre Cat, except California | 6005 | N/A | N/A |
| 1980-1981 | 8 | All models with 318 cid, Rear Converter | 6905 | N/A | PK-136 |
| 1980-1981 | 8 | All models with 318 cid, Front Converter | N/A | 1003 | N/A |
| 1979 | 8 | All models | 6905 | N/A | PK-135 |
| 1979-1980 | 6 | All models with 225 cid | 6905 | N/A | N/A |