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What NGK part# for non-projected tip -9 -10 -11 heat range plugs L92/LS3 Heads

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Old 05-27-2014, 09:58 AM
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Default What NGK part# for non-projected tip -9 -10 -11 heat range plugs L92/LS3 Heads

Hey guys,

Can someone give me the part number for Non-Projected Tip -9 -10 -11 heat range NGK plugs for L92/LS3 cylinder heads.
Thanks,
Old 05-27-2014, 11:30 AM
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Originally Posted by Petey-Pop-383
Hey guys,

Can someone give me the part number for Non-Projected Tip -9 -10 -11 heat range NGK plugs for L92/LS3 cylinder heads.
Thanks,
Give NGK a ring... 877-473-6767

-Garrett
Old 05-27-2014, 12:30 PM
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Originally Posted by NitrousExpress
Give NGK a ring... 877-473-6767

-Garrett
well thats helpful advice! NGK will tell him that there are no plugs for his application.....
Old 05-27-2014, 01:18 PM
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R5671a-9
-(10)
-(11)
Old 05-27-2014, 02:19 PM
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Originally Posted by WE TODD DID
R5671a-9
-(10)
-(11)
Those are gasket seat plugs but they still work.

FYI, you can still get a tapered seat plug in a 9. Its b9efs.
Old 05-27-2014, 02:23 PM
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Would the number 3146 work or are those just the two colder?
Old 05-27-2014, 03:40 PM
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#1085 is a taper seat non projected NGK in 9 heat, I just looked up replacement plugs for a LS3 and they are taper seat

Last edited by BigDB; 05-27-2014 at 03:56 PM.
Old 05-27-2014, 04:36 PM
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Originally Posted by DaveVette91
Would the number 3146 work or are those just the two colder?
I don't even know what a 3146 is. That part number is not in the categories of the tapered and gasket seat plugs for an LS1 headed motor.
Old 05-27-2014, 05:29 PM
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Originally Posted by 87silverbullet

I don't even know what a 3146 is. That part number is not in the categories of the tapered and gasket seat plugs for an LS1 headed motor.
Agreed I can't find anything on it
Old 06-04-2014, 03:37 PM
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Go below NGK Spark Plug reference chart PDF , this should help , The first one is part number and the second is how to read the part numbers , like tapered seats and so on . Any one running NGK plugs needs these charts

http://www.ngksparkplugs.com/pdf/StocktoPart11x17.pdf

http://www.ngksparkplugs.com/docs/te...bols_plugs.pdf

NGK Racing Plugshttp://www.ngksparkplugs.com/docs/RacingSpecs2013.pdf

Last edited by Randy WS6; 06-04-2014 at 05:19 PM.
Old 06-04-2014, 05:09 PM
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For 9's use the NGK B9EFS MPN:1085
10's-NGK R5671A-10 MPN:5820
11's-NGK R5671A-11 MPN:6596
Old 06-05-2014, 08:31 AM
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Thanks Brandon, much appreciated.
Old 06-17-2014, 01:46 PM
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The 10's and 11's look like gasket seat plugs. Any mods need to be done to them to run or just put them in?
Old 06-17-2014, 04:33 PM
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Originally Posted by streetknight2
The 10's and 11's look like gasket seat plugs. Any mods need to be done to them to run or just put them in?
Just put them in!
Gasket seat plugs work fine.



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