This is a Vortec 350 from a Volvo Penta I/O application. It was replaced under warranty in its first season for a leaking head gasket, so I tore it down to find that it was strictly an external leak. No damage, deck is straight, heads good. In fact, I was just going to break the glaze and re-assemble with new rings and bearings, but I sold the project it was going into.
I want to trade for your LT1 longblock/assembly. Doesn't have to be pretty, just a solid rebuildable engine. Depending on your trade, I'll include most of the gaskets to reassemble, a non-egr vortec carb intake, flywheel, and whatever else SBC stuff I can find in the garage 
