Lets try this. Lol. Fun. Head gasket 87800517 is what the book says fits. The pattern and shape of the push rod openings, oil gallery and water passages are completely wrong. The bore size is right.
Head gasket 82845203 fits earlier model tractor with 4.2 bore. The pattern of the surrounding openings matches my block but the fire rings stick out over the piston.
My old head gasket. With no number anywhere to be found matches everything great. It worked. I need a new one. Lol.
I have numbers off of the block. Unit numbers for the tractor and will try attaching these pics so you can see and hopefully someone else can feel as crazy as me.