Hello all.... So... broke a rear cylinder exhaust stud off. Attempted a reverse drill-bit extraction, but no joy (still some of the steel stud left in there and oversized the hole). Dropped engine out of frame and off to the machine shop I went. Machinist wants me to take the head off.... but I will only consider it if there are replacement head gaskets available. Tried my usual parts hook-ups but no go - "unavailable". Found some in the UK - anyone know of nay closer - US or Canada? Blair
https://www.davidsilverspares.com/parts/by-part-number/partnumber_1576/ At least they are in the USA, and not Europe. The original part number has been superseded by that number...you might try searching your source again, using that number, 12251-ML7-690.