on a 06 GT 4.6? I'm looking to take out my plugs and anti-sieze them and of course my one and only spark plug socket doesn't fit.

 

9/16"

anti-seize is a great idea, that's what i did when
i changed mine

 

9/16?? wow, was expecting metric. thanks

 

Anti seize, what is this? Are they hard to take out?

 

it makes it easier to loosen them up,
in the future

 

Yeah, I had trouble finding one when I had to put colder heat range plugs in.
Only one out of the 4 auto parts stores had even heard of a 9/16" spark plug socket. And even then I had to special order it.
Apparently it's only used for the ford 3 valve heads because the spark plug is so small.

I'd suggest going to a local parts store and see if they have one or can order one. SK and Performace Tools makes one.
Jeg's also has them but they have an $11 service charge to order a $4 socket...

 

I used a 9/16 deep socket to loosen them and then pulled the plugs out with a pen magnet. just need to be careful not to break the plugs. anti-sieze is a must with aluminum heads

 

yeah, they are real hard to find I went to sears, farm and fleet, advanced auto parts, autozone and napa and they have no idea what i'm talking about. i was thinking i had the wrong size but i guess i don't.
Anybody know the torquespecs for the plugs?

 

14MM works as well, I just use a deep one, it works fine.

 

i didnt use anti seize. i rock