GMC L18, Engine
| Engine capacity | 8,128 cm³ |
| Maximum power (range), hp | 340 |
| Maximum torque, N*m (kg*m) at rpm. | 616 (63) / 3200 |
| Fuel used | Gasoline AI-92 |
| Engine type | V-shaped, 8-cylinder |
| Additional engine information | OHV, SFI |
| Maximum power, hp (kW) at rpm | 340 (250) / 4200 |
| Compression Ratio (Range) | 9.1 |
| Cylinder diameter (range), mm | 107.9 - 108 |
| Piston stroke (range), mm | 111 |
| Cooling system (range), l | 27.4 |
| Engine lubrication system (range), l | 5.4 |
| Valve drive | OHV |
| Number of valves per cylinder (range) | 2 |