[Royce P]

They seem to blow regularly when folks do not clean the surfaces well and also if the head is not re - torqued immediately after the first heat cycle. A friend of mine says they blow more frequently if you have a Z head, but I have never had one so I do not have any way to confirm if it is so.


I have not had any head gaskets blow in many tens of thousands of miles driving various Model T's. I think installation technique is critical. Also the flatness of each surface is critical. Preparation of the surfaces to make sure there is no grease or oil is critical.