Are these the right size to T spark plugs? Ebay #281281299807.
It's an auction for 7/8" spark plug gaskets. With pipe thread plugs the Model T doesn't need any spark plug gaskets. (There are Model T heads made for other types of plugs, but usually they have modern 14mm plugs.)
NO, no spark plug seals on T plugs, they are 1/2" pipe thread.
Ha, Roger pipped me at the post!!
Those 7/8" gaskets will work with Model A plugs.
I though they were Model A champion X.
I don't know what kind of plug a Model A takes, but that's not a Champion X. 1/2" pipe thread is tapered.