Head Gasket Preference

Cometic gaskets will be of the "mls" (multi layer) style gasket, with no chance of a "fire ring" issue, this fire ring is part of the make up of most common style gaskets. The fire ring if too close to the edge of a bore or more likely too close to an irregular shaped cylinder head, may not seal properly and eventually let go. Hence the larger diameter. Don't worry. You won't have a problem.