Supergonzo, I guess I will throw out the two NOS sets I have since you say they don't exist, they are infact almost a 1/4 inch thick and carry a different part number. A lot of Poncho people don't know that the IV's valve cover gaskets are thicker, go figure. They also used longer valve cover bolts. The valve cover gasket part number is 9797580 and the bolt part number is 9784378.