Does any one the best spark plugs to use for the 4.7L engine?

 

The kind that make the gas go boom.

Seriously, I've read alot of stuff about the gimmick spark plugs like splitfires not being any better. Just get a good plug. Platinums seem to last longer for me between changings (on other vehicles, I havent changed plugs in the hemi yet)

 

I put the Bosch Platinum +4 in mine, dont notice much of a difference from the factory Champions. Good luck replacing them, the damn things pull straight out the top.

 

They say there's no advantage to the multiple electrode sparkplugs. It seems like they would inhibit flame travel to some degree. I've always had good luck with Autolite Platinums.

 

Hey....I work at a chrysler/jeep/dodge dealer in tulsa, ok and we've tried bosch and ngk and some others in the 4.7 and found that champions work the best. you part number is SPRC12MCC4. and the guys are right...they are a royal pain in the rear to change.