Alfa Romeo AR 30502, Engine
| Engine capacity | 1,351 cm³ |
| Maximum power (range), hp | 79 - 86 |
| Maximum torque, N*m (kg*m) at rpm. | 110 (11) / 3500 |
| Fuel used | Petrol |
| Engine type | Horizontally opposed, 4-cylinder |
| Additional engine information | Carburetor |
| Maximum power, hp (kW) at rpm | 79 (58) / 6000 |
| Cylinder diameter (range), mm | 80 |
| Piston stroke (range), mm | 67.2 |
| Number of valves per cylinder (range) | 2 |