Blue shouldn't have an issue, his new 04 has 8 thread heads.

 

oh yea thats right, but i thought it was 9 threads??

 

Its a heritage though, OBS.

 

they got more threads sometime in 2003....

 

Oh. Yay!!!!!!!!!!!!!!!!!!!!!!!!!!! That makes me feel so much better.

 

8 threads - 9 threads - close enough for government work. Much better than 4 threads!

You should still torque them dry to 28 ft/lb.

 

yea WAY much better than 4, everyone i told about my blow out, i said yea they only put 4 threads to hold the plugs in..."WHAT THE (BEEP)??!?!"

 

Well when the heads first went into production, the spark plugs had only 5 threads or so, -Motorcraft, Autolite, Champion. It wasn't just Ford heads or Ford model plugs either, from what I recall. Iduno, I was taught along time ago to use the rubber hose method when installing plugs into an aluminum head and tapperd plugs were measured by turn, not torque lol.

However, I do recall the 460 plugs had quite a few threads, - way back when lol.

 

If I'm not mistaken, 460's had iron heads.

 

yea i thought so too.

 

Yes 460's only came from the factory with IRON heads...

my 460 didn't throw plugs it threw 3 pistons 2 rods bent one into a U shape couldn't find half the cam...

 

Yea, I wasn't referring to the 460 heads in particular,- I was just commenting on the plugs for the 460. Seemed like it took forever to spin those plugs down lol.

 

Do you have the new 5.4 V7?

 

4.6 v7!

its a v8 again..still got a slight miss hopefully i can get that fixed today!