- 155 horsepower at 4,000 RPM
- 245 pound-feet of torque at 2,000 RPM
1981:
- 165 horsepower at 4,200 RPM
- 250 pound-feet of torque at 1,600 RPM
1982-1984:
- 140 horsepower at 3,800 RPM
- 245 pound-feet of torque at 2,000 RPM
1985:
- 150 horsepower at 3,800 RPM
- 240 pound-feet of torque at 2,000 RPM