Incl. .045″ 3-7/16″ / 3.5″ graphite head gaskets with Fireringr; Foametr (An aluminum base with a nitrile synthetic rubber foam layer on both sides with an additional single layer of silicone bead on one side) base gaskets; RCM (Rubber Coated Metal) rocker cover gaskets; and includes all gaskets; seals and O-rings to complete a top end rebuild. OEM replacement reference 17034-66.