| Year | HP | Model | Cylinders | |
| 68-76 | 6 | 2 | Select Engine | |
| 77-84 | 6 | Cross Flow | 2 | Select Engine |
| 85-86 | 6 | RCO, RLC, SLC | 2 | Select Engine |
| 85-88 | 6 | Elec. Start | 2 | Select Engine |
| 89-90 | 6 | RCD, RCE, RLC, SLC, RES, RLE, SLE | 2 | Select Engine |
| 91-92 | 6 | REI, REN, RLE, SLE | 2 | Select Engine |
| 93-01 | 6 | DRE, DRL, RED, REO, RER, RET, RLE, RLS, RLV, RVS, SLE | 2 | Select Engine |