I went with the NGK 5306's. The E3 are good spark plugs along with the Bosch platinums but for some reason our hemi's just dont like those plugs.

 

NGK 4306 here.

 

im about to change mine..im go with the oem copper champions or ngk 4306's which i used on my srt4 with no problems..is there a how to on how to remove the plugs,they seem difficult to get at

 

I just replaced my stock NGKs at about 85k miles! I went with Bosch Platinum Plus, pre-gapped to .044. The stocks only opened up to about .050, with little wear, just a bit of normal browning, I was surprised for almost 90k miles on them...

Truck is a bit smoother and has a bit more pickup now, so it was a noticeable difference!

 

maybe its the tps sensor?..cause it seems to idle fine once its warmed up

 

Any recommendations for a 2002 4.7?
Mostly light street driving, light hauling.
Texas summers are brutal though.
Dad's truck has come up for a tune up again and the dealer is gonna want an arm and a leg for a tune up I can do in 2 hours.

 

How necessary is the anti-sieze and die-electric grease? I can't find anywhere online that will ship it over here (APO / 09012). Going to order the plugs through Summit.

 

I always use anti seize for spark plugs. Just dumb not to. As for the die-electric grease, I think you can scoot by without. It won't hurt it either way in my opinion. I have changed plugs and never used it in the past without a hipcup. So others may disagree.

 

Champions here. In my wife's Jeep, our Ram 1500 van and in my 2003 1500 5.9. Champions run fine in Chrysler products and in lawnmowers. I believe that you should run what the manufacturer recommends. I am a Ford tech and have seen my share of aftermarket plugs cause problems. Especially Bosh Platinums.

 

Hmm 30k Ive changed mine every year just cause ...Not that they looked too bad ...Ive never had issues with Plugs ...so I guess its working