Fiat 138B3.000, Engine
| Engine capacity | 1,498 cm³ |
| Maximum power (range), hp | 82 |
| Maximum torque, N*m (kg*m) at rpm. | 120 (12) / 3000 |
| Fuel used | Gasoline AI-92 |
| Fuel consumption, l/100 km | 8.9 |
| Engine type | In-line, 4-cylinder |
| Additional engine information | Carburetor |
| Maximum power, hp (kW) at rpm | 82 (60) / 5600 |
| Compression Ratio (Range) | 9.2 |
| Cylinder diameter (range), mm | 86.4 |
| Piston stroke (range), mm | 63.9 |
| Valve drive | OHC/SOHC |
| Number of valves per cylinder (range) | 2 |