I am sealing my engine up with these. I called SCE and they gave me a part # for the thicker .062" gasket. Claims that the thicker gaskets will seal better given that I have the 8 bolt head pattern. The gasket that Summit stocks is the .043" gasket, but I had Summit special order the thicker ones. I believe now they have a part number in their system for the thicker gasket. I would post the number, but I do not have it in front of me. I paid $216. I do hope they offer more sealing capacity at 28# of boost.
