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Nov 28, 2008 | 11:47 PM

busdude

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Staging Lane

Joined: Nov 2008

Posts: 63

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From: Fresno ca

Sparkplugs

What plugs are you guys running in your Lt1s.

Im not sure the age of mine or really whats good for it.

I know the pcm has been re programmed. (for the fans i think an rev limiter?)
Has the cooler thermostat.
Slp headers full 3" exhaust.
K&n cold air intake.

Few other things done to it but there not motor related.

I have yet to find out if there is any internals done to it.

Nov 29, 2008 | 12:06 AM

StealthFormula

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From: Skippack, PA

Many many people run the NGK TR55's and like them. I did for years in LT1's but now with the added compression and higher combustion chamber temps I needed to go colder.

Nov 29, 2008 | 12:17 AM

busdude

Thread Starter

Staging Lane

Joined: Nov 2008

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From: Fresno ca

Cool NGK at my work is some of the cost friendly ones.

Nov 29, 2008 | 12:48 AM

lt1z28camaro

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From: Central Illinois

Yeah I'm running tr55's and going to tr6's for cooler plug..

Nov 29, 2008 | 01:27 AM

tspence45

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From: Monmouth, Illinois

I run TR55's and have been very happy with them so far. They're probably some of the best plugs out there for the price.

Nov 29, 2008 | 03:09 AM

LM97Z

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From: S.W. Missouri

I ran the TR55s for awhile, but i feel there a tad hot unless its a just a DD & not too much thrashing in stock form, now i went with the TR6s, because i'll be running alittle juice, they are holding up very well NA, even in stop & go & cruiseing around, so i say get the TR6s, especially with bolt-ons., gapped at .035"

Nov 29, 2008 | 08:38 AM

jaywalkersw

On The Tree

Joined: Sep 2007

Posts: 177

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From: San Antonio, TX

Im running TR55GPs. Only had them in for a little while but so far they are great.

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Nov 29, 2008 | 11:42 AM

Elliott's94Z

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From: Oregon Grown

Quote:

Originally Posted by StealthFormula

Many many people run the NGK TR55's and like them. I did for years in LT1's but now with the added compression and higher combustion chamber temps I needed to go colder.

x2...I had the NGK TR55's as well and they worked great.