Here is my Google search results for "graphite head gasket"
http://www.google.com/#hl=en&q...becea
See the third link down (right under the shopping results). It says Ford used graphite head gaskets on the 3.8 v6. I remember my stepdad's 3.8 Sable blew a head gasket.
The first link says that most OEM gaskets are now multi-layer steel (MLS).
Sorry I couldn't give you anything more KA specific.