| Cylinder Bore | Ø85.00 |
| Stroke | 56 mm |
| Swept Volume | 636cm³ |
| Air Inlet Port | Ø30 |
| Air Outlet Port | Ø19.8 |
| Number of Cylinders | 2 |
| Through Drive | OK |
| Air Unloader Port | M10x1 |
| Water (W) or Air (A) Cooled | W |
| Water Inlet Port | Ø16.2 |
| Water Outlet Port | Ø16.2 |
| Water Cooled Valve Plate | OK |