Spark Plugs
Thread Starter
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
Spark Plugs
Putting headers and a tunnel plate on my car and since I have to remove the plugs, is there a recommended plug to change to at the same time. Just a plain old LS2 Manual with CAI, 160 stat, TB spacer and a 92 octane tune.
Any recommendations, or should I just put the stockers back in, the car has 6,000 miles on it.
Any recommendations, or should I just put the stockers back in, the car has 6,000 miles on it.
Team Owner
Joined: Feb 2001
Posts: 27,237
Likes: 121
From: Short Hills, NJ
At only 6k miles the OEM plugs are still good (though I would check/correct the gap before reinstalling them) but personally I would put some NGK TR55 plugs in if they're coming out anyway.
Melting Slicks
Joined: Sep 2007
Posts: 2,597
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From: READING PA
St. Jude Donor '08-'09-'10
Putting headers and a tunnel plate on my car and since I have to remove the plugs, is there a recommended plug to change to at the same time. Just a plain old LS2 Manual with CAI, 160 stat, TB spacer and a 92 octane tune.
Any recommendations, or should I just put the stockers back in, the car has 6,000 miles on it.
Any recommendations, or should I just put the stockers back in, the car has 6,000 miles on it.
carefully youdont even need to remove the Plugs. I know im going to get some comments on this but it worked for me. I would also reuse the OEM Gaskets. Good luck on your install.
Drifting
Joined: Dec 2002
Posts: 1,613
Likes: 0
I only had to remove one plug on the drivers side kooks 1 7/8 doing the install myself, I would leave them in no reason to remove IMO.
If you do it by yourself use a piece of rope to lower the stock manifolds.
As recomended by many reuse the stock gaskets and bolts for a no leak install
If you do it by yourself use a piece of rope to lower the stock manifolds.
As recomended by many reuse the stock gaskets and bolts for a no leak install
Last edited by SoldSyclone; Jan 12, 2008 at 03:21 PM.
Burning Brakes
Joined: Sep 2004
Posts: 853
Likes: 1
From: Jacksonville North Carolina
I did my install by myself (my first header install). I only removed the plug wires not the plugs. Just be careful when removing the manifolds not to let them drop down on them. Piece of cake.
Racer
Joined: Jun 2005
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From: Mine Hill New Jersey
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Former Vendor
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From: Lewisville TX
St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13
Completely agree. You will have better performance from a copper plug vs. the factory platinum's they will just not have the same life.
Instructor
Joined: Dec 2007
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Team Owner
Joined: Feb 2001
Posts: 27,237
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From: Short Hills, NJ
True, unless of course you dropped one or banged it in the manifold while taking it out. 
And let's not forget that the gap might've been off along, wouldn't be the first time I've heard of that happening right from the factory...should one still not re-gap them in that case?
And let's not forget that the gap might've been off along, wouldn't be the first time I've heard of that happening right from the factory...should one still not re-gap them in that case?
Former Vendor
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From: Lewisville TX
St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13
Drifting
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Team Owner
Joined: Feb 2001
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From: Short Hills, NJ
The only likely benefit is going to be longevity, they will out last (meaning changing your plugs less frequently) the cheaper and shorter life TR55s but they will not perform any better (likely worse) than them in a naturally aspirated stock cubic inch application.
Race Director
Joined: Mar 2005
Posts: 11,549
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From: Southampton NJ
but its hard with no crush ring. in the old days on my 429 it would take 3 sets of plugs screwing in and taking out trying in a different cylinder until they were all just perfect
Safety Car
Joined: Dec 2004
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From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
i actually prefer the 'accel u-groove shorty' plugs with the electrode trimmed back, but i haven't gotten around to getting them yet.
currently i'm running a set of ngk's with a wider gap.
Le Mans Master
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From: Monroe Township New Jersey
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
St. Jude donor in memory of jpee '14
Le Mans Master
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From: Monroe Township New Jersey
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
St. Jude donor in memory of jpee '14