Head gasket assembly with metal inlays

A head gasket assembly adapted to be disposed between a head having a precombustion chamber therein and a cylinder block having a cylinder therein with the precombustion chamber located at least partially outside the diameter of the cylinder and with a precombustion chamber insert disposed in the head for defining the passageway between the precombustion chamber and the cylinder, said gasket comprising;

• body means defining two parallel surfaces adapted to engage and seal the head and the cylinder block, said body means including a metal core having resilient material on said surfaces thereof and at least one cylinder opening for surrounding the cylinder, metal inlays fixedly secured to both of said surfaces of said core and extending completely about said cylinder openings and including integral extensions extending from said cylinder openings and in engagement with said metal core for engaging the chamber insert and the cylinder block to perfect a seal therebetween.