Doing a little overhaul to a mildly built chevy 350 that's sat in storage quite some time. I primed the oil system, lubed the cylinders and it turned over freely with no issues. It's now been taken apart down to the shortblock. Just as I thought it's bored 30 over. It's a 70's block 2 piece rear main seal. I'm in need of a complete gasket/seal kit for it. Do I need different head gaskets for a block that's .030 over? It had all gm style cork gaskets when I pulled it apart, if there's an improved gasket kit that would be great, but I will settle for anything decent. Thanks ECC! I'll post some pictures up when I get the chance, it a really nice build with some really nice parts.