What kind of spark plugs does everyone use?

[gargol139]

I was told that mustangs have a tendency to misfire if you don't use motorcraft plugs, what plugs do you guys use and do you have any problems with non motorcraft?

 

[ponysarepretty]

I am still running on the platinum plugs that came stock, except two COPs had to be replaced (it was in the service records). I have 62k on it, I am thinking about changing the plugs but I have a long list of things to do before I go about doing it.

 

[Kilgore Trout]

Motorcraft AGSF-32C

 

[joshheat25]

Autolites!

 

[orange57]

does anyone run NGK's? i've always had good luck with them in my sportbike, not sure if they make them for the 4.6, but they mite. i just haven't looked into it.

 

[HoustonGT]

Autolite 764's

 

[Venom_Nitrous]

I use NGK's. They are 2 steps colder than stock. No problems. I had some side-gapped autolite 764's in before and I lost 4 rwhp down low but gained 6 rwhp up top. I don't have the graph with me tho.

 

[04GT]

Autolite Platinum

 

[mrvax]

NGK TR-55's. Gapped @ .053

 

[BooWFO]

NGk tr-6's gapped @.040

 

[Seraphitia102]

Autolite Double Platinum

 

[RandyStinchcomb]

well, I get my Motorcraft plugs for free but they don't have enuff coverage for my appt, so I use Champion #281/S63YC which is a race plug wth projected tip

 

[mustangman9812]

NGK's

 

[GDawg]

NGK T-55IX Iridiums

 

[blackfang]

Autolite 764 gapped @ .053

 

[5.0's 4 ever]

Ngk Tr-6 @ .035

 

[DogVomit]

NGK TR6's, gapped at .035 to make the blower tune work out.
They've been

 

[mustanggt3685]

Autolite 764's here, just replaced them when i put the inatake in. They can be a bit a bitch to change, so i figured while i had it apart.