The Cometic MLS head gasket for Jaguar 3.8L XK6 (89mm bore) is a multi-layer stainless steel gasket specified at .089in with compressed operating thickness references in the product notes. It seals high-output engines without sealants and is suitable for aluminum-to-aluminum or aluminum-to-cast-iron configurations. Embossed outer layers coated in Viton resist heat and conform to varied surface finishes; an uncoated stainless shim layer allows thickness tuning, better rebound, and more even clamp load distribution.
Cometic Jaguar 3.8L XK6 .089in MLS Cylinder Head Gasket - 89mm Bore