So i was just at the parts store to get some new plugs for the lnf and the acdelco number crossed over to these ngk iridium 4793. I was wondering if i should run these in my lnf?

 

mine dint like it since that i have a set with less than 1k on them 22$ shipped

 

Im currently running a set of the NGKs and just had the car tuned by terminator. He was seeing a lot of misfiring and recommended going back to the delcos. Hope this helps

 

The stock ac delco plug is made by nkg. The nkg part number is ILTR5D.

https://www.cobaltss.net/forums/2-0l...ug-gap-195752/

 

just went to the dealer and stock ac delco iridium number is 41-108 and theres none on the island. went to 3 parts stores and gave them this number ILTR5D. and came up with nothing(not sure if theres a difference between us and canada) but when they would type cobalt ss 2.0 turbo in there computers it would come up with this number ngk iridium 4793. woundering if these are right? all 3 parts stores came up with that number. im getting a re tune on friday and was going to change my plugs b4 doing so or do you guys think i should wait a week for the ac delcos?

 

I got mine from rockauto since none of the parts stores stock them. They also have the ac delco version listed. Ngk has a stock number 5476.

http://www.ngksparkplugs.com/part_finder/index.asp

 

I was told AC delco was brought out so all parts numbers will be changing rock auto is awesome u can get them there as well gud price. Stay with the stock ones trust me.

 

Just tried the ngk 4793 and the car is running fine, really smooth with no problems so far

 

5476 is the stock ngk plug re branded AC Delco.
Look at the number on your stock plug just under the socket hex on the barrel..

 

I'm not tryin to hijack the thread but which plugs would be best for a full bolt on car with a s256 zzp turbo kit slalong with their s1 cams.I am currently running the crap autolite plugs they include include with the turbo kit and I'm more than sure its time to change them thanks in advance

 

One step colder NGK's are 3787's.

 

Stock AC Delcos gapped to 0.028-0.032" depending on boost run.

 

I'm running step colder plugs on mine and I have no issue.

 

i just bought the ac delco plugs for lnf off zzps website.

 

You are lucky. Most end up with misfires running colder plugs and autolites.

 

im runnin autolites and my car misfires and spits and sputters like crazy above 20 psi. no one has ngks in stock close to me

 

Order the ac delcos they take only a day or two to come in.

 

i got a different autolite plug called the platinum 2, they're gapped to .060 lol im gonna try em and see what happens and regap if needed

 

So like a 2 day adventure of misfires until the right plugs come in? Lol

 

i regapped mine to .032 and it runs like a champ. autolite iridiums