The Cometic MLS head gasket for Jaguar 3.8L XK6 (89mm bore) is a multi-layer stainless steel design with an advertised nominal thickness of .084in and an operating compressed thickness noted in specs. It seals without sealants and fits aluminum head/block pairings or mixed-material assemblies. Embossed outer layers feature Viton coating for high-temperature sealing, while an uncoated stainless shim layer adjusts thickness, aids rebound, evens clamp load, and helps limit bore distortion.
Cometic Jaguar 3.8L XK6 .084in MLS Cylinder Head Gasket - 89mm Bore