SOULPOWER

whats the best spark plug for the LS1 of this 3 options??

anyone has used the RapidFire??

im installing the LT Headers this weekend and im planing on changing the spark plugs to, so wich one should i choose??

ACDelco RAPIDFIREŽ Performance Platinum Plug??

ACDelco Professional Iridium Spark Plugs??

ACDelco Professional Platinum Spark Plugs??

you can check them at AcDelco website...

thanks!!

Time2Kill

iTrader: (49)

Using the rapid fires in my 408. This particular motor has always been finicky with whatever plugs I have put in it, but the Rapid fires have been the only problem free plugs so far. It's the first motor I've had them in, but they've been great so far.

orangeapeel

iTrader: (18)

Have you considered the NGK line? TR-55 and TR-6

SOULPOWER

thanks tim, there goes a +1 for the rapidfires

orange: yes but, its just that a friend of mine is working at GM Parts, and he can getme a good deal on those options.. he is running the rapidfires and he claims they are better than iridium, like iridium last longer but the rapid fire works better or something like that, but i want to ask here before i buy them this weekend!!

thanks

DJ_951

ACDelco Professional Platinum Spark Plugs??

original plugs, not so sure about 100k but 60K sure. Just put another set in.

BuBbABFP

iTrader: (3)

Ngk-tr55

NHRAMAN

iTrader: (1)

I use the AC DELCO IRIDIUM PLUGS.

Asmodeus

I use the Denso Iridiums.. expensive, but, they are working great.

bene

iTrader: (16)

I have the NGK iridiums.

mvvette97

iTrader: (18)

AC iridiums

TAwhore

Ac Iridiums, no gap needed to be set

SOULPOWER

i guess im going with Ac iridium and MSD wires!!!

Wheeler99WS6

NGK TR55IV iridiums