Cadillac GM Cadillac 390, Engine
| Engine capacity | 6,384 cm³ |
| Maximum power (range), hp | 304 - 345 |
| Maximum torque, N*m (kg*m) at rpm. | 550 (56) / 3000 |
| Fuel used | Petrol |
| Fuel consumption, l/100 km | 22.9 - 27.6 |
| Engine type | V-shaped, 8-cylinder |
| Additional engine information | OHV, Carter AFB2814S 4-barrel carburetor |
| Maximum power, hp (kW) at rpm | 304 (224) / 4600 |
| Compression Ratio (Range) | 8.75 - 10.5 |
| Cylinder diameter (range), mm | 101.6 |
| Piston stroke (range), mm | 98.43 |
| Cooling system (range), l | 16.3 - 18.5 |
| Engine lubrication system (range), l | 3.8 |
| Number of valves per cylinder (range) | 2 |