I had some problems with a cylinder leak at one of the gaskets, the number 6 cylinder in my engine was stuck in the cylinder forcing me to disassemble the engine and pour over the block. When I removed the head gasket I noticed that the aluminum ring was slightly separated from the gasket body. My advice to you is to inspect the rings on each cylinder bore before installing the gasket. If the package is even slightly damaged, send it back and get a new one. It can save you a lot of time and money