Which spark plugs for 92 LT1?????
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 812
Likes: 1
From: Sherman Texas
Which spark plugs for 92 LT1?????
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......
Safety Car
Joined: Mar 2000
Posts: 3,620
Likes: 2
From: Hillsboro OR
Re: Which spark plugs for 92 LT1????? (thmupr)
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.
Burning Brakes
Joined: Aug 2000
Posts: 984
Likes: 1
From: Cincinnati OH
Re: Which spark plugs for 92 LT1????? (thmupr)
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]
[Modified by Vince Ivanc, 9:14 AM 12/11/2001]
Thread Starter
Burning Brakes
Joined: Nov 2001
Posts: 812
Likes: 1
From: Sherman Texas
Re: Which spark plugs for 92 LT1????? (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.
Le Mans Master
Joined: Oct 1999
Posts: 9,713
Likes: 3
From: Sachse Texas
Cruise-In I Veteran
Cruise-In II Veteran
Re: Which spark plugs for 92 LT1????? (thmupr)
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.
The NGK plugs are also good.
Safety Car
Joined: Nov 1999
Posts: 3,891
Likes: 2
From: Houston, TX
Re: Which spark plugs for 92 LT1????? (thmupr)
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,
Anyway, go with the NGK TR55's. You will be very happy with them.
Good Luck,
Safety Car
Joined: Jul 2001
Posts: 4,178
Likes: 2
From: Windermere FL
Re: Which spark plugs for 92 LT1????? (Chris@SpeedDemon)
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
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
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Le Mans Master
Joined: Oct 1999
Posts: 9,713
Likes: 3
From: Sachse Texas
Cruise-In I Veteran
Cruise-In II Veteran
Re: Which spark plugs for 92 LT1????? (92TripleBlack)
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 ;))
(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 ;))