cant really see a problem in thar , so what was the noise you told about ?, already 20 thou over too , so if piston is still good you need to stick with it . looks a tad dry though . pic' of inside the head too ? i'll tell you why later if we like whats there

the noise wasnt just a badly fitted or bent cooling cowl ? (black tin top cover)
that head gasket is home made too , who's been in there tinkering huh