Flatout Gaskets has gone and made its valve cover gaskets for GM LS engines even better. Its new LS valve cover gaskets have a redesigned inside perimeter so they work with the factory center bolt-type valve covers. The design keeps the gasket registered on the valve cover so it won’t move around and lose the seal. That also means you can do away with the factory o-ring seal.
Flatout Gaskets LS valve cover gaskets are available in paper/silicone in 0.60″ or 0.120″ thicknesses or steel/silicone laminate in 0.50″ or 0.100″ thicknesses.
