Let me start by saying they look great! However, the bolt studs did not thread well into the bold on 7 of 12 of these I ordered. I had to carefully thread in using a bench vise and wrench. Additionally, they are too long for the block holes, and required shortening with a cutter. A little more work than expected but they do look great. I am giving them a 3 star overall, 1 star for ease of use, but 5 for looks.
Nice finishing touch to your valve covers. Prefer these way more than the longer butterfly styled ones. Ford logo is a nice touch