What size freeze plug-1985 120 horse mercruiser

[jeff13601]

Does anyone have a book that would show the diameter of the upper freeze plug in the flywheel end of the block?

 

[Bondo]

Re: What size freeze plug-1985 120 horse mercruiser

Isn't the original laying in the flywheel cover,.. or bilge..???<br />How about a Dial Caliper ???