"I have seen other people use the glass and sandpaper method before.
But is it also warped where the camshaft sits? I had a head that could not be resurfaced because it would bind the cam. Or so the machine shop claimed."
"I'm in the middle of putting a earlier L head on my Z24 engine. A straight edge showed 0.015" gap where less than 1/3 of that is allowed. I have a sheet of glass form a stereo cabinet and glued 80 grit sand paper onto it. Pushed and pulled…"
"So it's a year later and I still have not fixed the 720. I did get an OEM gasket set, but living in glorious Kalifornia, I have not been motivated all this time because they'll probably fail it for smog anyway.
Seems they are…"