Does anyone know what is the best spark plug for these, I have used NGK vpower and they seem awesome, does anyone know the ones for the v8 5.9. I have my v6 ones in there but I don't think they spark enough...
So ngk vpower for 5.9 would be perfect.

 

moe in wichita ks
i have done a lot of experimentation with spark plugs. i have found that any gap more than .045 doesnt help. i have used .045 on dodge 318 and 360s i think that the engine in the dak now are close to the older engines. i have 2001 v 6 i had my mach, set my plugs at .045 seems to run fine. but i forgot to ask what brand he put in. i do know its not a champion. so i say .045 and if you drive hard use a plug that is one or two heat ranges colder. my mech. says that a platinum plug in dodge is a wast of money. I have used VGKs they work good in mopars densos work good too. just dont use to hot of plug. a cold plugwont burn a hole in a piston. spark plugs are cheeperthan pistons.