Dose anyone know what size insert would be needed for thread repair? I am going to use a sert kit to fix a 5.4L out of a 98 Expedition. ANYONE'S help would be greatly appreciated!

Thanks!

 

Repair kits that I've seen have an insert that requires you to use a tap to open up the hole so the insert will go in. It remains the same thread pitch of the plug on the inside. once in place a set pin is used by hammering on the insert, this spreads the top of the insert, which has small spikes cut into the upper threads, these "Bite" into the head material. If you can't find a repair kit locally, let me know, I'll send you one to use and the insert, you'll need to provide me a deposit, and return it when your done.
My father worked at a shop where they made these before he retired. They are commonly knonw as "sav-a-thread".

 

Thanks Jstang,
I just may take you up on that offer, but what size insert is required for that head?