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BigFrog
04-17-2006, 03:31 AM
GM Rapidfire Spark Plugs - Anyone Tried Them?

What is the best (sure to get 10 answers here) replacement spark plug for a stock 2002 SS?

Let the fireworks begin...
keliente
04-17-2006, 12:16 PM
NGK TR55.

NGK TR6 if you use nitrous.

/end thread. :)
YoMommasTA
04-24-2006, 02:58 PM
i would use the delco iridium plugs part no. 41-985 (12571164)these will work great and last a very long time.,
Wesman
04-24-2006, 09:17 PM
AC Delco plugs are great. I think they are the best for GM vehicles in general.

Never used Iridium plugs though, perhaps someone on here has some experience that they can share...
YoMommasTA
04-24-2006, 09:19 PM
i'm using them for over a year
Silverbird01
04-24-2006, 10:22 PM
NGK TR-55.
I tried Rapidfire plugs once...................didn't like them. Put the NGK's back in and everything is good again!
Quicksilver Vert
04-25-2006, 06:42 AM
I use Rapidfires with good results in my Chevy truck with a cast iron smallblock engine,but it's only AC Delco iridiums for my LS1 Corvette.
00SLPSS
04-27-2006, 04:44 PM
NGK TR55.

NGK TR6 if you use nitrous.

/end thread. :)

this man knows what he's talking about. :yup:

I've searched poll after poll and threads and these are definaly the most recommended from what I've read.
Liquifire
04-28-2006, 05:14 AM
this man knows what he's talking about. :yup:

I've searched poll after poll and threads and these are definaly the most recommended from what I've read.
woman..........she does know what she is talking about
Quicksilver Vert
04-28-2006, 06:38 AM
Thanks for your compliment 00SLPSS,sharing info.like this is what the Forum is all about!
00SLPSS
04-28-2006, 10:03 PM
woman..........she does know what she is talking about

I do not post here much, I was unaware. My apoligies to keliente. :hide:
I'll have to watch my gender posts from now on. :wall: :yup:
Mr. Luos
04-28-2006, 10:08 PM
I run NGK TR55's in my H/C 402ci. Gapped at .045".

I will run either those or Delco plugs. Nothing else.
glvr01
05-01-2006, 12:38 PM
NGK TR-55 I just had these put in two days ago. Well worth it. I had the car on the Dyno with the original (AC Delco) and then after with the TR-55 Engine seemed to run better on the TR-55 (Of course could have been the other mods too!!!!!)
cailey37
05-01-2006, 03:10 PM
NGK's are great.....but I have to tell ya...after I read an article in GM Highperformance I gave Brisk Sparkplugs a shot and I have to admit they are something! Only problem is they are a little high and it's hard to find them.....Great throttle response with them and they even seemed to outperform the NGK's.......