Pontiac GM Buick 252, Engine
| Engine capacity | 4,128 cm³ |
| Maximum power (range), hp | 125 |
| Maximum torque, N*m (kg*m) at rpm. | 278 (28) / 2000 |
| Fuel used | Petrol |
| Fuel consumption, l/100 km | 10.7 |
| Engine type | V-shaped, 6-cylinder |
| Additional engine information | Rochester 4-barrel carburetor |
| Maximum power, hp (kW) at rpm | 125 (92) / 4000 |
| Compression Ratio (Range) | 8 |
| Cylinder diameter (range), mm | 100.71 |
| Piston stroke (range), mm | 86.36 |
| Valve drive | OHV |
| Number of valves per cylinder (range) | 2 |