I know thIs this has been talked about lots of times but what is a good spark plug for a 1999 sludge durAngo 5.2 pros and cons of each thanks for the info. I'm using accel cap and rotor and accel plug wires if that helps on stock coil I mAy get aN accel coil

 

Champion copper are stock (Hydra coorect me if I am wrong....please). I have Champion iridium and they are woking fine for the last few months,
FF

 

+2 for copper/iridium. No plats tho for 5.2/5.9 family engines. Plats are ok for 4.7.

 

the plats were crap in my 4.7 kensai, every dodge/chrysler/jeep engine we have owned has run best on copper plugs, i would suggest staying with the stock champions

 

that's interesting. Most other users with 4.7 never reported any problems if any when using plats. So just going by reports from other users. You are the first I seen with problems with plats on the 4.7

 

hmmm i think some of the 2nd gen dak guys have had problems with plats too, but dont quote me on it, i know somewhere i have read of other 4.7 owners having problems, cant seem to remember where

 

Well for his first post he asks for a sluge motor.........Don't feed the troll !!!!!


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