Abstract: A gasket has a first active layer with a bead. A first spacer layer is located below the first active layer. An intermediate layer is provided with a wave portion. The intermediate layer is located below the first spacer layer. A bottom spacer layer is located beneath the intermediate layer. The bottom spacer may have a bead.

Abstract: A gasket has a first active layer with a bead. A first spacer layer is located below the first active layer. An intermediate layer is provided with a wave portion. The intermediate layer is located below the first spacer layer. A bottom spacer layer is located beneath the intermediate layer. The bottom spacer may have a bead.

Abstract: A valve cover is described that is secured to a component of an internal combustion engine of a vehicle. The valve cover includes a cover body having a plurality of walls defining an inner cavity and a ventilation system having a periphery. The ventilation system is at least partially disposed inside the inner cavity. A seal is molded between the cover body and the ventilation system for securing the ventilation system to the cover body.

Abstract: A manifold anti-rotation system for engines includes a manifold having an end for interfacing with a manifold interface portion of an engine cylinder head, and a mounting collar. The manifold includes a protrusion extending from a periphery of the manifold end. The mounting collar comprises a collar body having a central aperture defined by an aperture wall wherein the aperture receives the manifold end therein. The mounting collar further includes a projection extending from a top surface thereof. The manifold protrusion and the collar projection are positioned to abut one another to prevent the manifold from rotating with respect to the mounting collar beyond the manifold protrusion.