Which spark plug would ya'll consider to be the best choice for replacement on the 5.7? I was thinking a bosch double or a bosch 4. I heard that the 4 doesn't work well with the 5.7 but I want more than just a regular plug. Thoughts...suggestions??

 

use the search and search spark plugs 5.7

 

dude, go with the regular Champion copper's and you will be just fine. from what I have read on this forum, they run the best then any of those expensive ones. I just have mine done and it runs fine.....almost like a new truck.

 

hmm, I can't seem to pull up anything with the search, mainly why I was asking on here. You think that the standard copper would do alright? I know that's what comes pre-installed on the truck and all, but at a double would preform better I would imagine. You using the NGK plug?

 

stay away from bosch plugs for the hemi. they have been known to cause many problems. ive even had boschs snap in half while removing them from another engine. the hemi doesnt like platinums or other fancy plugs in most cases. some run them and report them working fine, and a few other dont. stick with coppers, either champions or NGKs or something along those lines. I run NGKs myself

 

I'm using champions dude and they are fine.

 

Thanks for the input!

 

DO NOT FORGET THE ANTI SEIZE. That chit works wonder man it makes the next plug change so much better.

 

bosch is complete garbage!!! E3 is the way to go! Better hp and better fuel economy!! Dyno tested.

 

NGK V-power copper core plugs are the best. Champions ok too. All others are a waste of money!!!