So I wanted to buy an exhaust manifold, cylinder head bolts for my 4.0 EFI push rod engine. I have a Ford Ranger 99. It's 20 years old. Needless to say, I had some trouble finding parts that I definitely needed. They fit! no problem with my new/reconditioned cylinder heads. (As far as I can tell) The length of these screws is an issue, but I'll report later (if I remember)