Ferrari F 129B/40, Engine
| Engine capacity | 3,495 cm³ |
| Maximum power (range), hp | 380 |
| Maximum torque, N*m (kg*m) at rpm. | 363 (37) / 6000 |
| Fuel used | Petrol |
| Fuel consumption, l/100 km | 9.9 |
| Engine type | V-shaped, 8-cylinder |
| Maximum power, hp (kW) at rpm | 380 (279) / 8250 |
| Compression Ratio (Range) | 11 |
| Cylinder diameter (range), mm | 85 |
| Piston stroke (range), mm | 77 |
| Number of valves per cylinder (range) | 4 |