Used Aftermarket Aluminum heads.

[ken-r-mer]

If a set of rare used heads have minor corrosion around a few water jacket openings and some pitting in the piston dome area of two pistons, is that a set of heads to avoid? The top side is near pristine. Can those defects be remedied? I know everything cost $$$, but can the water corrosion be deck machined and using a thicker head gasket to offset the machine cut, if the cut is no more than 0.10"? It's also hard to get machining estimates without having the heads in hand. So any feed back on recent machining work would be helpful when negotiating a price to minimize overall risk. As far as the piston dome pitting, that is another issue. Seen some epoxy's with a 1,000 degree temp range.