CLASS RACER FORUM - View Single Post - Hey Ford Techs! 2005 5.4L Ford striped spark plug

FED 387 · 01-25-2011, 12:41 AM

I think the NAPA # is 770-3223 its called Sav-a-thread--- you end up with a M14-1.25 thread size when ya get done---better double check but thats the number I remember-----you hafta use a different size(diameter) spark plug too when ya get done---comp

01-25-2011, 12:41 AM	#15
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,354 Likes: 337 Liked 281 Times in 151 Posts	Re: Hey Ford Techs! 2005 5.4L Ford striped spark plug I think the NAPA # is 770-3223 its called Sav-a-thread--- you end up with a M14-1.25 thread size when ya get done---better double check but thats the number I remember-----you hafta use a different size(diameter) spark plug too when ya get done---comp