Yeah, that's definitely new SB business, right there. Keenster, I would compare your cost to rebuild your block -- Boring and honing, new pistons and bearings, etc -- to the cost of an OEM block ($1645 from Heuberger, or ~$1800 shipped; $2081 to-your-door with gasket kit, which, you'll need anyway). I'm fairly certain you'll be just fine with a new block and a new turbo. Follow the rebuild formula, it's the path to happiness.