GMC L68, Engine
| Engine capacity | 4,998 cm³ |
| Maximum power (range), hp | 135 |
| Maximum torque, N*m (kg*m) at rpm. | 317 (32) / 2400 |
| Fuel used | Petrol |
| Engine type | V-shaped, 8-cylinder |
| Maximum power, hp (kW) at rpm | 135 (99) / 4200 |
| Compression Ratio (Range) | 8.5 |
| Cylinder diameter (range), mm | 94.9 |
| Piston stroke (range), mm | 88.4 |
| Number of valves per cylinder (range) | 2 |