X Head Assembly & Installation - Comments Requested

Looking at your heads they are a little rough on the last mill job, take your finger nail and run it over your head surface and see if you feel the bumps in the grind marks. I have a milled flat piece of aluminum that I put a sticky back DA disk on and run it over the head. Start with 220 and you will see the high spots then finish with 320, just makes it better for the thinner gaskets. I also use copper coat on the thin gaskets and the MLS gaskets.