I ran the champion truck plugs in my 1993 dodge dakota 4x4 5.2 and in my 1997 dodge 4x45.9 and had good luck with them. But i have a 5.7 hemi now and want the best plug for performance.

 

The consensus here, by far, is to use the good old champion copper type plugs and change them every 30k miles. I've done Bosch Platinums myself on four different vehicles I've had with the venerable old 4.0 I6 and that engine loves 'em. But the Hemi didn't do well when I put them in and I changed to the champions almost immediately with much better results...

 

Yeah, it seems like most people feel that the hemis run better on the reg plugs compared to platinum or other fancy plugs....

 

Yup, Champions for the Hemi.

 

NGK v-powers.

Champion [sm=noooo.gif]