Originally Posted By: ThirdeYe
Apparently the OEM GM one has been redesigned as well so you don't necessarily need to go with the metal FelPro one.
Yes, GM redesigned the gasket. It's an improvement, but the redesigned GM gaskets still leak routinely. They're still plastic.
IMO, you'll be much better off with the metal Felpro gasket.
And from what you're describing, you'd better take care of this quickly, or you'll be buying an engine. The gasket kit costs about $75-$100 depending on where you buy it. Most shops will charge you something in the neighborhood of $600-$800 to do the job.