Abstract: A cylinder-head gasket comprises a metal core plate having two faces and formed with a plurality of cylinder holes, an annular groove of a predetermined depth around each cylinder hole on one of the plate faces, a plurality of stud holes, and a plurality of lubricant/coolant holes. This plate is normally made of stainless steel, a specialty steel, or a steel with a special surface treatment or coating. A resilient seal normally made of a fluorocarbon or silicone is provided on each of the core-plate faces around the lubricant/coolant holes. A cylinder plate of a thickness greater than the groove depth forms respective cylinder rings of the plate thickness sitting in the grooves around each of the cylinder holes. This cylinder plate is normally of a stainless or specialty steel also.

Abstract: A cylinder head gasket for an automotive vehicle has its fire ring constituting a principal part of the gasket attached at spaced apart locations to a pair of lateral parts onto which respective elastomeric seals can be molded independently.