Those stupid instructors in my Ford FACT Certification classes. Guess they were wrong again. I stay in touch with them. I'll let them know that the internet said they were wrong again.

Rolf.

 

I used anti-seize on my first plug change on my truck. Used Autolite platinums. Everything was fine for the past 5 years. Did a recent change used motorcraft and no anti-seize this time around.

While it may be recommended to not use anti-seize, IMO it's not a guarantee you'll blow a plug if you use it.

 

Either way, just seal them. That = 28' lbs for the 5 thread heads. Keep in mind these little thread chambers have been prof bench tested up to 100' lbs.

28 is as far as you want to go for the plugs sake, - and it's what it takes to seat well and stay there.

If you A-seize, do so very lightly. But why bother for these heads. Just about every other aluminum automobile heads I'd use it...just not on these. But you won't hurt anything IF you know what your doing when doing so. Yea...right! -so just skip that part lol.

Best way to start these is with a 3/8 section of air hose at the end of a screwdriver for the front four, and just the hose for the back. Do it that way and you know they're straight in. The hose is tight enough on the plugs to thread all 8 in by itself.. to seat.