There has been quite a bit of debate about head gaskets for the 6.0 Powerstroke. “Which is the best?”
The only difference between Ford OEM head gaskets and Victor Reinz Black Diamond head gaskets is the color of the adhesive. We have actually received OEM Ford head gaskets, delivered to our shop from a local dealership that had the Victor Reinz logo stamped into them along with the Ford part number.
Don’t believe it? Here is an interesting post by Chistine “Pinky” Ruggles at Bullet Proof Diesel about a comparison between the two head gaskets for the 6.0 Powerstroke. http://www.powerstroke.org/forum/general-6-0l-discussion/971506-6-0l-head-gasket-comparison.html#post11811546