Who here who torques there plugs faithfully everytime they put them in, has had a plug blow out on them. I torque to 11 ft/lbs (per the manual) each install. I don't want any surprises while cruising. Am I safe?
Heads with additional threads (nine threads total) did not appear until 2005. All heads made prior to 2005 have FOUR threads.04 heads FTW they revised them for 04 and possibly late 03 lol..
Heads with additional threads (nine threads total) did not appear until 2005. All heads made prior to 2005 have FOUR threads.
Yeah, it's 14, at least that's what I torque mine to.
i just did mine today. I put anit-seize on them, and tightened the mofo's untill the socket wrench didnt turn any more. i used to torque them to "spec", untill I had one BLOW OUT! forget that, just tighten them down good so u dont have to dish out $200 every few months
Are you sure KT? I have heard they added more threads in 04 and some 03's...it might have even been Randy that said it.
Damn dude the heads are aluminum! The plugs are steal! Surprised you didn't strip the threads out of the heads
Were the heads Rev C? What was the manufacture date? How many threads were there? AFIK only Rev C heads have 9 threads and Rev C heads were first made in 2005.04+ PI castings have more threads. i work in a Ford parts dept and we had one lying around. i checked the engineering number on the head.