ok im getting ready to change my plugs i have a 04 ford f150 with 5.4 3v the plugs in there are the stock plugs with 90,000 miles. Im not worried about the price i just want the best for my application.
Mods include:
FRPP HOT ROD CAMS
CUSTOM TUNE
TROYER E-FANS
AIRFORCE ONE 3.5" INTAKE
SALEEN ALUMINUM DUAL CORE RADIATOR
MAGNAFLOW CUSTOM TRUE DUAL EXHAUST

spark plug options that i know of feel free to add if there is more
1. Brisk Racing Spark Plug 3VR17YS

ALL OF THESE ARE FROM O`RIELLY WEBSITE
2. Accel Silver Tip Racing Spark Plugs 346s
3. Autolite HT1
4. Autolite HT15
5. Champion Double Platinum Spark Plug
6. E3 spark plug E3.70
7. Motorcraft sp507
8. Motorcraft Finewire Platinum Spark Plug sp515

 

Alot of people on the forum use motorcraft....I'm also due for new spark plugs. So Im goin with motorcraft...Good luck!

 

I wonder how the E-3 one piece plugs perform?

 

M/C works best in these engines IMO, modded or not.

 

But which motorcraft? On orielly website there is two different motorcrafts are the new motorcraft plugs one piece? Because I don't want to have to deal with the possibility of then breaking off again.
7. Motorcraft sp507
8. Motorcraft Finewire Platinum Spark Plug sp515

 

Call your Ford dealer. That's all I have.

 

Yeah lol im kinda interested in the brisk or e3

 

I believe the SP507 is a single platinum and the SP515 is a double platinum.

 

yeah i just google it and your right the 507 is single platinum and 515 is double platinum so which one lol?

 

I did some more research the 507s is the original plug that came in our trucks off the assembly line the 515s are the revised plug that are double platinum. On advance auto website I can buy the 507s for $7.99 per plug which is $63.92 but I have a $20 off coupon so I can get them for $43.92 they don't have the 515s online and my coupon is only good for online purchases. I will be superchargering the truck around March so the 507s will be a cheap replacement till I get supercharged. What do you guys think?

 

I haven't done mine yet but am planning it in the very near future. I plan on using the SP-507 because they are cheaper and I will probably change them every 20 or 30k. I say they will be your cheapest option until you get supercharged. Don't you have to change them out again then?

 

Why would you not want to go with a plug that has performed flawlessly for 90,000 miles. Just replace them and keep on truckin.

 

Yeah im going with the 507s because I can get them for 43 bucks and your right they have lasted me 6 years

 

I went with the Brisk one piece plugs. Have not had a problem with them yet... *knock on wood*

I had the dealership put them in when they pulled the old ones out. (Had them do it since my truck had high miles and I didnt want to break a plug or plugs off in the parking lot of my apartment complex). The dealership made me sign a form waving any liability if the plugs malfunctioned or missed since they weren't Motorcraft. But so far so go. And now Im not scared to change the plugs myself...

 

I am truly amazed that Ford/MotorCraft has not acknowleged this plug problem with a one piece plug of their own?.....Simply Amazed.....