Alfa Romeo AR 33401, Engine
| Engine capacity | 1,712 cm³ |
| Maximum power (range), hp | 129 |
| Maximum torque, N*m (kg*m) at rpm. | 148 (15) / 4300 |
| Fuel used | Petrol |
| Fuel consumption, l/100 km | 8.4 |
| Engine type | Horizontally opposed, 4-cylinder |
| Maximum power, hp (kW) at rpm | 129 (95) / 6500 |
| Compression Ratio (Range) | 10 |
| Cylinder diameter (range), mm | 87 |
| Piston stroke (range), mm | 72 |
| Valve drive | DOHC |
| Number of valves per cylinder (range) | 2 - 4 |