| High engine subfamily | Cylindre/Piston |
| Cooling | Air |
| Cylinder material | Fonte |
| Number of admission transfers | 3 |
| Exhaust type | Ovale |
| Exhaust Mount Type | A bride |
| Piston material | Aluminium moulé |
| Piston diameter | 39.89 |
| Piston pin diameter in mm | 12 |
| Piston cap | Domed |
| Number of piston rings | 2 |
| Piston ring material | Fonte chromée |
| Piston ring section | Trapézoïdal |
| Segment lug | Recouvert |
| Gaskets supplied | Oui |
| Spare part: cylinder head gaskets | 329930 |
| Spare part: cylinder seal | 683 |
| Spare part: piston | 512361 |
| Spare part: clips | 479498 |
Upper and lower trapezoidal piston rings.