GMC LR4, LY2, Engine
| Engine capacity | 4,801 cm³ |
| Maximum power (range), hp | 285 |
| Maximum torque, N*m (kg*m) at rpm. | 400 (41) / 4600 |
| Fuel used | Petrol |
| Engine type | V-shaped, 8-cylinder |
| Maximum power, hp (kW) at rpm | 285 (210) / 5400 |
| Compression Ratio (Range) | 9.1 |
| Cylinder diameter (range), mm | 96 |
| Piston stroke (range), mm | 82.9 |
| Number of valves per cylinder (range) | 2 - 4 |