thmupr

I am looking to replace the plugs on my 92, and really don't know what brand or range to get :eek: Are the original AC's about the best, or should I get something like a Bosch platinum, or NGK? I noticed that the 92 shows to have a differnent plug in the Eckler's catalog, and it is very high for a set ($67) :bs . Why so high? Any help would really be appreciated, as this is my first LT1, and I really don't want to trash an Optispark just yet... Thanks in advance......

AquaMetallic94LT1

NGK, AC Rapidfired, Champion Gold, and Autolite Platinum are the best choices. Bosch plats don't work too well in LT1 engines. Stock heat range is okay unless you are running nitrous.

Nathan Plemons

NGK TR 55's They are excellent plugs and will cost you at most $16 for the set.

VMAX451

The stock AC's are terrible, I replaced my original set which was missing 6 out 8 platinum pucks at 30k with another set of the same last year, which promptly dumped 2 more pucks within a few thousand miles. I thought they would have fixed the problem in sometime between '92 and the next decade, but that was asking too much :rolleyes: . The general consensus is that the NGK's are good plugs.


[Modified by Vince Ivanc, 9:14 AM 12/11/2001]

thmupr

Thanks for the replies :cool: I'll probably try the NGK's, I think the car has about 40,000 on whatever is in it, that is the last record I can find that says they were changed. I am also assuming that it has AC's since a Chevy dealership did the work..Thanks again.

SPD DMN

Autolite #106 Copper core plugs. Change them about every 20-30K miles. They will out perform any platinum plug.

The NGK plugs are also good.

Chris@SD

Didn't I already send you a set of the NGK's??? Maybe it was just wires.
Anyway, go with the NGK TR55's. You will be very happy with them.
Good Luck,

92TripleBlack

Chris,
Would those take well to shaving down the top part? Don't know the term but supposidly shaving the top part that protrudes but still having the proper gap will give you a better burn, so more power and better gas economy.
Thanks

SPD DMN

I would not trim the NGK V-power plugs because of the shape of the electrode. The Autolites look like standard plugs.

(No Chris you did not send me a set of NGK's, but if you want to send them I can send you my new address ;))