ngk g (platinum) vs champion double plat

[myxo]

Hi all,
trying to decide between these 2 ngk g #3381 vs the champion double platinum #7032 for plug change. The champion actually costs a little more.
I am at about 79000 miles. (2.7l mag).
About same price range. I have read a bit and cant decide.
My understanding so far is that double platinum just lasts longer, but has same performance is this correct?

I've read too much about champion fails... etc.Then again others say why change what manufacturer put in . Still some say manufacturer only made that choice to save money.

The problem I have is most people give feedback about immediate improvements using one brand or the other, but how is long term performance?
What do you suggest.

I am hoping to change the plugs soon so I dont have to worry about stuck plugs.

thanks
Myx

[formerice]

Champion plugs are excellent. You can read all kinds of crap on the internet, example the 2.7 Chryslers are supposed to be a steaming pile of dog poop. Meanwhile, most of my friends that own 2.7's are pretty happy. I'd suspect Chrysler did some research and picked the Champions as a good choice, probably no real difference in cost. I once owned a 1971 MGB, it came with Champions and ran the best on them, I have 2 new Husqvarna saws, yup, good old Champions came with them. I suspect most of the folks who'd never run Champions would never own a Chrysler vehicle either! Oh, BTW, welcome from Maine!

[err]

Champions or NGK's both run great in our cars. I'm currently running Autolites Iridiums that I got on sale and have been happy with them. As long as you don't run the novelty plugs (E3, +4, etc) you'll be fine.

The only time I ever saw a Champion fail was 20+ years ago in my Dad's '72 Duster 340. He was removing it and the ceramic part was cracked when he got it out. My guess is that the plug was dropped or damaged before it was installed and he didn't notice it. He still runs Champions because that's what came in it.

Welcome to the forums.

[myxo]

Thanks guys ,
Good to hear they both work.
Autolites had been on my list (I had good experience with them on my former ford)..but I had read something ,cant really remember where, that made me not add them to the shortlist... I guess I'll reconsider them.

Do the iridiums make a huge difference over double platinum?

Thanks for the warm welcomes

[formerice]

My experience iridium and platinum plugs both last a long time, like 100,000 miles. But if you have aluminum heads, I hate to leave plugs in that long. I actually switched to Champion Copper Plus plugs in my hemis and still run the Champion double platinums in my old 4.0L Jeep with cast iron head. I don't mind spending a couple more bucks per plug for 6 plugs, but I just bought 32 of the Champions for my 2 hemis, copper plugs dyno exactly the same hp when new as iridium or platinum in my experience, BTW.

[plumfloored]

We have had great luck with the G series NGK plugs.

[myxo]

Thanks I will check some local stores today,

Do I need to change the intake manifold gasket. If so which one?
When I search for the part I come up with different looking items
Felpro MS 92165 - the whole gasket is one piece
Felpro MS 91473 -the gasket is in sections.
This is for a 2.7l

Is this gasket called the intake manifold gasket or a plenum gasket?
Wanting to have all the parts before I take anything apart.

[myxo]

OK, I think I found the correct part number for the intake manifold gasket
MS 91473 felpro
the single unit kind must be for the 3.5l

[myxo]

Ok, just to report back .
I ended up using the NGK G part 3381.
My old champions at 79,123 look good still - I dont really know how to read plugs, but based on iinfo I found on NGK site, they look like there is normal engine wear.
There is just a small improvement in acceleration from a stop..or when merging into freeway traffic, I assume that would only be due to the age difference of the plugs, not the brand.

Thanks everyone.