[Woodz428]

Something isn't right, you shouldn't have any piston above the deck, it sounds like a combination for some piston and head interference. The block has obviously been decked,but that seems extreme. If all checks out on disassembly, I would have the pistons cut. The factory clearance is .018,since it is older and you'd expect some machine work has been done,it would be a little tighter. I don't think you could find a gasket thick enough to negate that much protrusion above the deck. If you're looking at buying it, I might be a little leary, if you already own it you need to figure out why the slugs come up so high.