Ok, once the head is clean you can search for cracks, they usually show right up. They can magnafux them to look for cracks, but not on aluminum. Your head is Aluminum so it cant be hot tanked, but they can put it in their parts cleaner.
The main thing you need is, the head cleaned($35), shaved($65), reground($200) with new valve seals in it.
You can put over sized valves in it, that is where heads can get expensive, then polishing the compustion champers (Better head distribution in the cylinder) Smooth out the exhaust ports (very important) then port match the intake by using the intake gaskets that are going on the car. (don't go beyond 90grit when porting the intake) you want the turbulent air for better fuel mixture. the exhaust should be a smooth as possible for quick evacuation.
Are you building this head so you can add a turbo later? Then you really want the chamber to be polished. (don't run more than 8.5 to 1 compression though, or else it will ping and predetonate.
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