Buick GM Vortec LM4, Engine
| Engine capacity | 5,327 cm³ |
| Maximum power (range), hp | 290 - 300 |
| Maximum torque, N*m (kg*m) at rpm. | 441 (45) / 4000 |
| Fuel used | Gasoline AI-92 |
| Fuel consumption, l/100 km | 13.8 - 15.7 |
| Engine type | V-shaped, 8-cylinder |
| Additional engine information | SFI |
| Maximum power, hp (kW) at rpm | 290 (213) / 5200 |
| Compression Ratio (Range) | 9.9 |
| Cylinder diameter (range), mm | 96 |
| Piston stroke (range), mm | 92 |
| Number of valves per cylinder (range) | 2 |