| Engine Description | (LHO) 3.1L 60 degree V6 |
| Horsepower (HP@RPM) | 140@4800 |
| Torque (ft-lbs@RPM) | 180@3600 |
| Block | Cast Iron |
| Heads | Aluminum |
| Valves | 12 |
| Displacement | 3.1L (3100cc, 192ci) |
| Cylinders | 6, V formation, opposed 60 degrees |
| Bore | 89mm (3.503") |
| Stroke | 84mm (3.3122") |
| Compression Ratio | 8.9:1 |
| Fuel Management | PFI (Port Fuel Injection). Electronic, controlled by ECM |
| VIN code | T |
| Usage | All, later 1989-1993. To '94 in Lumina |
| Type | Gen II (Same motor as 2.8L with increased stroke volume) |