"Just make sure it's for a Z24 and has 89mm bore holes. Less and the fire rings will be exposed to the hot combustion gasses and will erode or glow hot and become a pre ignition source. Nissan gaskets are easily 3X what NAPA sells them for.…"
"If the head is warped top to bottom then the cam is already binding. Can't see shaving it causing a bind.Just remove the rockers and spin the cam. (don't do this on the engine) If it turns easily by hand then cam towers are not…"
"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…"