I know, I know. I hate searching, spent all day yesterday searching about rims/tires/backspacing/pics of different combo's. Thanks for all the help everone!

 

In this case, it can be time well spent that could save lots of time, money and anguish in the future!

 

I presume the problem of removing sparkplugs, leaving a chunk of insulator in the head, generally refers to the 3-valve 2004-2008 engines, right?

A table respecting sparkplug removal could be helpful. Do I have this right?

The older 2-valve heads in a 5.4l may strip out the threads.
The older 2-valve heads in a Romeo 4.6l aren't a particular problem.
The older 2-valve heads in a Windsor 4.6l aren't a particular problem.

 

Yes it is the 5.4 3v used from 2004 until early 2008.

 

I know what you mean, I found the TSB and saved it, that wasn't so bad. Thanks again for all the help!

 

Well, from what I know, the 2-valve 4.6 *could* be a problem with blowing the plugs out of the head and stripping the threads, and definitely the 5.4 is as well. I believe some 4.6's had 4 thread heads and a switch was made to 8 thread heads, but I'm not sure when. I have an '03 Romeo 4.6 2valve but I still had the plugs done a bit early to be safe. It still can happen.

 

Noo - What's wrong wit your head

1. Need to be a little more specific. How? Who? Why?

2. Wrong

3. Wrong

97 - 08 OEM 16 valve V8 Modular heads are ALL interchangeable.

 

There all interchangeable??? OOOOO i think imma get me some 04+ 5.4 PI heads hehe... hey i have 5.4 heads on my 97 4.6L....i was so confuzed the frist time i did headers i read the block and it said 5.4L but the vin said 4.6L. Humm not many junkyards have 04+ F150's damn....oh well......

 

No, those won't work lol = 24 valve. It would be a hell of a challenge.

 

all of them are 24valve? humm maybe a 4.6L out of a pony or somthin....or an 02-04 5.4 or 4.6L those got the PI heads right?

 

No not all. Just the 2 valves - 04 + plus model 2 valve heads wll fit your 97 ? - 04 + model 2 valves are the best V8 modular heads Ford has made for these trucks in along time. "0" plug problems.
5fours went 3 valve in 04.

 

if 04 plus heads are the best how come when i race an 04 5.4L i win by 3 or more truck lengths? id like to get my hands on 04+ heads with some comp cams i was looking around on craigslist for PI heads and i found this guy who will CNC your heads port them out n polish them up so they flow like 50% better or somthing for 150 bucks. Does that sound worth it or a rip off? or should i just get 04+ PI heads?

 

The two valve not the three lol. Yea those stock 04+ 5/fours are slow w/stock tune. I'm not sure how many lengths I can get on one. As soon as aI get about one and half - They freakin ALWAYS give up

But - Race one of those three valves with just a tune. I did behind 12 Oaks on 12 mile there lol - Same out of the hole, but he flew right by me within about 200 feet. He wasn't even custom, those were canned tunes. I couldn't believe the difference.

I don't think we would see that much in the 97-98's. The 99 5.4L will gain quite a bit.