Ford Triton V-10 Spark plugs

[Tooljunkie]

I had one blow out recently. Heli-coil makes an insert. Takes very little time to repair. And in theory the insert is a permanent fix.

 

[superchargeddrt]

They don’t actually break. If I understand it correctly Ford did not design the V10 and 5.4 heads with enough thread engagement and over time they loosen up and wiggle around until the threads are gone . Then they shoot out of the hole leaving behind a smooth bore hole and a dent in the hood. Lol

Yep,
My brother-in-law had about 3 of em do that. I told him of the backwards acronym for Ford......Driver Returns On Foot LOL