Packard Studebaker 289, Engine
| Engine capacity | 4,737 cm³ |
| Maximum power (range), hp | 275 |
| Maximum torque, N*m (kg*m) at rpm. | 452 (46) / 3200 |
| Fuel used | Petrol |
| Fuel consumption, l/100 km | 16.9 - 19.7 |
| Engine type | V-shaped, 8-cylinder |
| Additional engine information | Stromberg WW6121 two-chamber carburetor, McCulloch VS-57S compressor |
| Maximum power, hp (kW) at rpm | 275 (202) / 4800 |
| Compression Ratio (Range) | 7.8 |
| Cylinder diameter (range), mm | 90.5 |
| Piston stroke (range), mm | 92.1 |
| Supercharger | Compressor |
| Valve drive | OHV |
| Number of valves per cylinder (range) | 2 |