Petrol | ||||
| 4.3 Oldsmobile LV8 Small-Block V8 | 100 hp / 74kW | Rear Wheel Drive | 1981-1982 | |
| 3.8 Buick LD5 V6 | 105 hp / 77kW | Rear Wheel Drive | 1977-1978 | |
| 4.3 Oldsmobile LV8 Small-Block V8 | 105 hp / 77kW | Rear Wheel Drive | 1978-1981 | |
| 3.8 Buick LD5 V6 | 110 hp / 81kW | Rear Wheel Drive | 1979-1983 | |
| 4.3 Oldsmobile LV8 Small-Block V8 | 110 hp / 81kW | Rear Wheel Drive | 1977-1978 | |
| 3.8 Buick LD5 V6 | 115 hp / 85kW | Rear Wheel Drive | 1978-1979 | |
| 5.0 Oldsmobile LV2 Small-Block V8 | 140 hp / 103kW | Rear Wheel Drive | 1981-1983 | |
| 5.0 Chevrolet LG3 Small-Block V8 | 145 hp / 107kW | Rear Wheel Drive | 1977-1978 | |
| 5.0 Oldsmobile LV2 Small-Block V8 | 145 hp / 107kW | Rear Wheel Drive | 1980-1981 | |
| 5.0 Chevrolet LG4 Small-Block V8 | 155 hp / 114kW | Rear Wheel Drive | 1979-1980 | |
| 5.0 Chevrolet LG4 Small-Block V8 | 160 hp / 118kW | Rear Wheel Drive | 1977-1979 | |
| 5.7 Oldsmobile 350 Rocket V8 | 160 hp / 118kW | Rear Wheel Drive | 1977-1979 | |
Diesel | ||||
| 4.3 Oldsmobile LF7 V8 | 90 hp / 66kW | Rear Wheel Drive | 1978-1979 | |
| 5.7 Oldsmobile LF9 V8 | 105 hp / 77kW | Rear Wheel Drive | 1979-1983 | |
| 5.7 Oldsmobile LF9 V8 | 125 hp / 92kW | Rear Wheel Drive | 1978-1979 | |