From 3.8Wiki
Hi there This is my first time here and I am a little embarrassed for having to ask for help. Since I am and have been a ford tech for over 20 years, I am replacing the head gaskets on my 98 model 3.8 (hate that engine). I was shocked at the price of a head gasket set from local autoparts stores, ford no longer carries them. I bought a set off ebay (The seller has good feedback). The gaskets are not labeled and I have now way of knowing which way they go. Any help here would be appreciated