S1 rallye head sizes

  1. #1
    Would anyone know what width an unskimmed S1 rallye head would be? I have a head that has been skimmed before I bought it, so need to see how much has come off to work out what size of head gasket to use.

    Anyone able to help me?
  2. #2
    bump up.
  3. #3
    111mm thickness when new