My home inspection of Speedmaster heads

Thanks for the pic
Did it come with the plastic sleeve to protect the seal from the valve keeper grooves?

Nope, just a comp bag with 16 seals in it.

I think that if it takes more than a tap, tap, tapie to install. there probably not right for inside diameter to outside diameter of guide.

Agreed. Unfortunately, the old seals have that rubber lining the ID, so I can't get a good measurement on them. I had to go with stem size and guide OD when I picked them out.