motor questions and update

[Tom Wesenberg]

Clean the top of the piston and you may find .060 or some such marking to indicate the size of the bore. There aren't many engine still left that are standard bore and haven't been overhauled or worked on.

I'm wondering how the oil ring got so broken up?

Model T's came with cast iron pistons, but the A's came with aluminum pistons. Copper head gaskets are very common.