Dear Vintage - Opel friends,
I'm pleased to be able to offer you the following article:
Seal thermostat housing on cylinder head 'fuel-injector with large flange', Opel cih
This seal sits between the cylinder head and the thermostat housing, at least when you have a 'fuel-injector' engine, that is equipped with a large flange on the thermostat housing, such as the classic 2.0E engine in Manta B / Rekord E / Ascona B or Kadett C...
In case you need seals for a 2.2E or 3.0E engine, or even for a carburetor equipped engine, we certainly have them, too :-)