GMC L56, Engine
| Engine capacity | 6,465 cm³ |
| Maximum power (range), hp | 180 - 190 |
| Maximum torque, N*m (kg*m) at rpm. | 488 (50) / 1800 |
| Fuel used | Diesel fuel |
| Fuel consumption, l/100 km | 14.8 - 15.9 |
| Engine type | V-shaped, 8-cylinder |
| Additional engine information | OHV |
| Maximum power, hp (kW) at rpm | 180 (132) / 3400 |
| Compression Ratio (Range) | 21.5 |
| Cylinder diameter (range), mm | 103.1 |
| Piston stroke (range), mm | 97 |
| Supercharger | Turbine |
| Mechanism for changing cylinder volume | |
| CO₂ emissions (range), g/km | 375 |
| Number of valves per cylinder (range) | 2 |