It was installed on a 2005 Impala 3.4. The kit included lots of O-rings, rocker cover gaskets and rocker cover bolt gaskets, thermostat gasket, valve gaskets, upper and lower intake gaskets and of course head gaskets. Everything went well. The only problem I had with this kit is that the head gasket doesn't show which side is up. Luckily I found an installation video for a similar product and found that the white trim is the side of the block and the all black side is up. Also included was an…