GMC GM Chevrolet Straight-6 250, Engine
| Engine capacity | 4,093 cm³ |
| Maximum power (range), hp | 90 - 155 |
| Maximum torque, N*m (kg*m) at rpm. | 237 (24) / 1800 |
| Fuel used | Gasoline AI-91 |
| Fuel consumption, l/100 km | 11.8 - 19.8 |
| Engine type | In-line, 6-cylinder |
| Additional engine information | carburetor Rochester 2GV 2-barrel |
| Maximum power, hp (kW) at rpm | 100 (74) / 3600 |
| Compression Ratio (Range) | 8.5 |
| Cylinder diameter (range), mm | 98.42 |
| Piston stroke (range), mm | 89.66 |
| Cooling system (range), l | 11.8 - 19.3 |
| Engine lubrication system (range), l | 4.7 |
| Valve drive | OHV |
| Number of valves per cylinder (range) | 2 |