sjoholm

You would think that motorcraft would come out with a one piece plug that will fit 04-07???

GATORB8

There's a lot of controversy over all of the forums about this. The heads and plugs were designed to work together.

All Champion and Brisk "1-piece" alternates are is the same basic design, but it is welded instead of crimped.

99 SS

do the champion and brisk perform as well as the motorcraft?

GATORB8

Depends who you ask, I've seen quite a few saying the Champions tend to foul. The Brisks are made for NOS or blown applications, but I've heard of people running them NA and they'll last for 20-25k.

f150cwcw

First of all, i dont have the 5.4L V8, i have the 4.6V8. Second, this is not the first vehicle i have ever had and i have put lots of miles on vehicles in the past. I have never had to change plugs in an automobile. I put 180K miles on a Ford before the one i have now and never had plug misfires and never had to change them. A Dodge i had before that had 90k miles with no plug problems or needing to change them. I have been around motors all my life and never have heard of changing pugs that early with that amount of miles until i joined this site. These arent two stroke motors.
I know i may have 5000 people responding telling me, "change them now!" but im not going to until i have a problem because the chances of me having a faulty plug before i stop driving the truck is very slim.

ak_cowboy

Don't jump in a 5.4 question with your 4.6 advice then. the reason we're yelling "change them now!" is because it is a known problem on the 5.4s and the OP needs to do it as soon as possible. I had an Escort with 130K and original plugs with no problems. Still glad I changed them, because 3/4 were not gapped properly. You suggesting not to change them until he has a problem is like a blind man telling someone the sun hasn't set yet.

wondering

I just had the back 2 plugs changed to the champion today, the others were already done when i bought the truck last week, 06 F-150 supercrew 5.4
here is a link to the youtube video on the plug & breakage problem

f150cwcw

Ok sorry guys, i have changed my mind now completely. I now know that it is best to change your plugs in your vehicle right away! Dont wait!!!! There is a certain amount of time ( which is unknown) that you need to change them. Its better to change them at 50K, or even 25K miles, because if they are gonna break, atleast they break on you, and you have to pay the bill instead of never having any problems with the plugs 100k miles down the road and letting the next person have to deal with it after you have traded it in. I think im going to get off the computer and go try to fix something that is not broken and try to spend some cash that i originally didnt have to spend.

f150cwcw

One more question then im done. If they break when removing them, then why try to remove them if you have a very good chance of never having to replace them?

GATORB8

Haha, you're right, if you'll trade the truck in before the 100k mark, no reason to ever do it.

But for those of us who don't jump truck to truck, or who have puchased a truck that you'll keep past 100k:

If your replacing with Motorcraft I'd recommend doing it somewhere around the 75-100k mark to keep the truck running at full potential. The carbon buildup may be worse than at 50k, but you're changing them half as often. People still break them at 30k. (they still break even if re installation is per the TSB)

Most of the people who recommend changing immediately are going to the Champion plugs, which won't break again. In which case it's probably a good idea as you will probably have less stock plugs break compared to waiting..