Which would be the best to go with in these 2 catagories? For the spark plugs an coils?

I have an 2002 F150 5.4L 4X4 SC.

 

OEM motorcraft.

 

for both coils an plugs?

 

yeah. There isnt any real gain by blowing a butt load of cash on some fancy shmancy ignition system. Many of those so called performance coils are just rebadged by the manufacturer. I know of quite a few 4.6L cars putting down ginormous power numbers with OEM ignition.

after all, its damn near guaranteed t work and easy to find.

 

then thats what i will go with then

 

I would go for upgraded boots for the cops. Don't forget to add dielectric grease to the boots.

 

No reason to upgrade the boots.. Waste of money.. The dielectric grease is good though. The biggest reason the coils fail is because of the extended time on changing the plugs. The larger the gap the harder the coil has to work to jump it. As a plug wears the gap gets larger. Plus firing through the normal buildup on plugs. OEM Autolite or Motorcraft is perfect.

 

ok i changed both today with Motorcrafts. thanks

when the mechanic changed these i didnt notice any grease he put in, was he suppose to?

 

i did notice when he took them out they had a little greas on them and then one was covered in grease and looked brown. Im guessing that should be a good sign right?