Does anyone run copper spark plugs in there 6.1 . I used search feature but didn't find a lot of specific info on it... If anyone does do you have a part number I could get...doing tune up thus weekend and always preferred copper plugs to the lazy long lasting platinum plugs...
In my experience champion coppers are oe on almost all hemis ( the ones ive worked on, not trying to contradict ya wink. I know you do a lot more work on these than me haha)
I believe you're correct on the older 5.7's, but the 6.1's AFAIK have always used the NGK Double-Platinums. But copper is a better conductor, so I decided to switch.
So has anyone here using copper cheapie plugs 1 step colder that
runs 10's or faster? I replace my plugs monthly just because and
I think the plat's are waste of money and tough to get in a pinch.
So which ones are you running these days Winkster?
Any updates on people using copper plugs for stock or boosted apps?
I thinking of trying them out this weekend.
Does anyone have a number for 1 step colder?