LT1-LT4 Modifications 1993-97 Gen II Small Block V8
View Poll Results: Which plugs work best for the LT1?
TR6
4
5.56%
NGK TR55
41
56.94%
Factory AC Delco platinums
13
18.06%
Autolites
9
12.50%
Bosch Platinum +4
4
5.56%
Other..
1
1.39%
Voters: 72. You may not vote on this poll

Which plugs are best for the LT1

Thread Tools
 
Search this Thread
 
Old Feb 2, 2008 | 04:10 AM
  #21  
Boodyrider's Avatar
12 Second Club
iTrader: (2)
 
Joined: Jun 2006
Posts: 580
Likes: 1
From: Baltimore, Maryland
Default

NGK TR55, TR6 on juice. Almost no exceptions to this rule of thumb. Might look at the post count for those suggesting stock plugs.
Reply
Old Feb 2, 2008 | 05:25 AM
  #22  
Schweet97Z's Avatar
12 Second Club
iTrader: (35)
 
Joined: Jan 2006
Posts: 1,550
Likes: 0
From: Danville PA
Default

Never base intelligence on someone's post count....im running TR-55's on my car now, and will probably go with TR-6's when I put the Direct Port Mani on.
Reply
Old Feb 2, 2008 | 07:58 AM
  #23  
96capricemgr's Avatar
11 Second Club
iTrader: (1)
 
Joined: Sep 2004
Posts: 11,975
Likes: 15
Default

A LOT of guys who really know what they are doing lack the stuborness to argue with the average poster here so they don't post, and a LOT of kids with basically stock cars think they know all there is to know about heads/cam/shortblocks. Agreed post count means little.

I think signatures on the otherhand can be telling, some guys have monster builds details but then no track info or mediocre results listed, some guys just have almost nothing listed and some guiys have combos that clearly run well for what is listed. Choose which one of those you listen too carefully.
Reply
Old Feb 2, 2008 | 08:08 AM
  #24  
IH8FORD's Avatar
10 Second Club
iTrader: (6)
 
Joined: Mar 2007
Posts: 952
Likes: 0
From: Fuquay Varina, NC
Default

I have less than 160 posts so I probally dont know what I am talking about but I have used the Ngk Tr55 they work out alright I am going to switch to the Tr6 because my compression is pretty high now. But They seme like a good plug . Havent tried the autolites in lt1's. But when my car was just a bolt on car I liked the factory AC delco platinum plugs.
Reply
Old Feb 2, 2008 | 09:54 AM
  #25  
street demon2k3's Avatar
12 Second Club
iTrader: (3)
 
Joined: Aug 2003
Posts: 591
Likes: 0
From: Palmview, Tx
Default

Im using the TR-55's platinums and they're holding up a lot better than the regular ones. I fouled em out in a matter of minutes, Im getting new ones today though cuz the cars been down for a long time.
Reply
Old Feb 2, 2008 | 11:46 AM
  #26  
real82it's Avatar
On The Tree
 
Joined: Sep 2004
Posts: 178
Likes: 0
From: ALBUQUERQUE, NM
Default

take the responses so far, add a few more.....and make a poll???....!!!!

As for me, autolite 104s (went with colder plug due to super charger).
Reply
Old Feb 4, 2008 | 01:43 PM
  #27  
emj2006's Avatar
Thread Starter
TECH Regular
iTrader: (5)
 
Joined: Mar 2006
Posts: 473
Likes: 0
From: Wichita, KS
Default

Poll added! lol.
Reply
Old Feb 4, 2008 | 07:26 PM
  #28  
Razor_Blade's Avatar
TECH Resident
iTrader: (8)
 
Joined: Jul 2006
Posts: 826
Likes: 0
From: Florida
Default

Autolite 106's for me. IMO, unless you are mad at your money there is no reason to buy anything else. Unless it's a different heat range, of course.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Feb 4, 2008 | 07:45 PM
  #29  
lt1-xjs's Avatar
TECH Fanatic
15 Year Member
 
Joined: Jun 2007
Posts: 1,255
Likes: 11
From: centerville, ohio
Default

Bosch +4 here, for 7 yrs. no issues. And still have the factory 1993 wires!
Reply
Old Feb 5, 2008 | 03:22 AM
  #30  
squeals99's Avatar
TECH Enthusiast
iTrader: (8)
 
Joined: Aug 2006
Posts: 664
Likes: 0
From: Linton, IN
Default

i am running just the plain old bosch platinums, and they have seemed to run fine for as long as they have been on the car.... next change though i will prob. be running the NGK's
Reply
Old Feb 5, 2008 | 03:25 AM
  #31  
3pnt4maro's Avatar
TECH Fanatic
20 Year Member
iTrader: (2)
 
Joined: Jun 2005
Posts: 1,720
Likes: 0
From: Middle Georgia
Default

Originally Posted by lt1-xjs
Bosch +4 here, for 7 yrs. no issues. And still have the factory 1993 wires!
might be time for a tuneup..just an idea
Reply
Old Feb 5, 2008 | 05:57 AM
  #32  
qwk93ta's Avatar
TECH Addict
iTrader: (13)
 
Joined: Jun 2004
Posts: 2,240
Likes: 1
From: Fairfield, Ohio
Default

Bosch +4 SUCK.....I had them in my car for maybe two weeks and switched to NGK. My car never ran right with the Bosch...I also replaced the Bosch 02s, what a waste of money. Replacing LT1 plugs twice in one month was a real pain in the ***, my hands looked like they had gone through a war!!!!
Reply
Old Feb 5, 2008 | 05:59 AM
  #33  
LT1BRN's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Feb 2006
Posts: 582
Likes: 0
From: Kingdom of Bahrain
Default

TR55 FTW, been on the car for 18 months and 2600 miles so far, no problems yet.
Reply
Old Feb 5, 2008 | 08:04 AM
  #34  
moserman's Avatar
11 Second Club
iTrader: (7)
 
Joined: Sep 2006
Posts: 319
Likes: 0
From: Lancaster, PA
Default

AC delco platinums (LT4 plugs) were good for my NA setup but i just fouled some since it sat for 9 months and tried to fire it back up but im either going with autolite or else NGK
Reply
Old Feb 5, 2008 | 01:34 PM
  #35  
sandovalt1's Avatar
Teching In
iTrader: (2)
 
Joined: Aug 2007
Posts: 45
Likes: 0
From: Sanleon, TX
Default

ngk tr55s been the best for me thats all we use in n/a f bodies. and tr6 for spray or boost
Reply
Old Feb 5, 2008 | 02:17 PM
  #36  
kinglt-1's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (26)
 
Joined: Jul 2005
Posts: 5,897
Likes: 254
From: Ft. Wayne, IN
Default

Stock delco's are the best for stock to slightly modded lt-1's. Ngk tr-55 is best for modded na lt-1's. No experience with autolite's but hear they work well. Don't buy into those high dollar gimic plugs such as E3, splitfire, and denso. They are a complete waste of money!!!
Reply
Old Feb 5, 2008 | 02:50 PM
  #37  
buffman's Avatar
TECH Addict
iTrader: (9)
 
Joined: Nov 2004
Posts: 2,289
Likes: 0
From: Kzoo, MI
Default

I've been running 104s in my Roadmaster for awhile now, no problems.
Reply
Old Feb 6, 2008 | 02:43 PM
  #38  
KriegerEhre's Avatar
TECH Apprentice
iTrader: (3)
 
Joined: Mar 2006
Posts: 322
Likes: 0
From: LBK, Tx
Default

I just use factory AC delco - I had NGKs on the trans am I drove i didn't like them much.
Reply
Old Feb 8, 2008 | 07:50 AM
  #39  
jasonp31's Avatar
Launching!
 
Joined: Sep 2007
Posts: 245
Likes: 1
From: Clover, South Carolina
Default

I either put AL605's or 106's in mine, can't remember which. I've ran NGK in the past, different car, TR6 and TR55's. Good plugs. Can't go wrong if you can get them cheap, but not worth a 5 dollar price tag some places have them at. I stay away from AC's like the plague. Love their plug wires, hate their plugs.
Reply
Old Feb 8, 2008 | 09:30 AM
  #40  
jm93camaro's Avatar
On The Tree
iTrader: (2)
 
Joined: Apr 2006
Posts: 124
Likes: 0
From: QCA, Iowa
Default

I'm running NGK TR55's with no probs. Second set due to the first set having those retarded *** twist off tops. Second set have the solid tops. I've just got a bolt-on car besides impala headgaskets to bring my compression ratio up.
Reply



All times are GMT -5. The time now is 10:39 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE