| High engine subfamily | Cylindre/Piston/Culasse |
| Cooling | Air |
| Studed cylinder head | Non |
| Cylinder head architecture | Hemispherical |
| Cylinder material | Fonte |
| Number of admission transfers | 5 |
| Exhaust type | Ovale |
| Exhaust Mount Type | A bride |
| Cylinder head material | Aluminium |
| Piston material | Aluminium moulé |
| Piston diameter | 39.95 |
| Piston pin diameter in mm | 10 |
| Piston cap | Domed |
| Number of piston rings | 2 |
| Piston ring material | Fonte |
| Piston ring section | Rectangulaire |
| Segment lug | Recouvert |
| Spare part: piston | 487580 |
Composition of the thermal group:
- 1 Cylinder
- 1 complete piston
- 1 Cylinder Head
- 1 Complete engine head gasket kit