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Spark plugs for 2000 ls1

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Old Nov 25, 2012 | 01:50 PM
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Default Spark plugs for 2000 ls1
I have a 2000 ls1 5.7 car and I want to change the spark plugs. What part number do I need. AC Delco Preferred.
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Old Nov 25, 2012 | 02:05 PM
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AC Delco Iridium 41-110
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Old Nov 25, 2012 | 02:21 PM
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Thaks exactly what I was looking for. Great site!
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Old Nov 25, 2012 | 02:27 PM
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I know this place is the LS engine Mecca for info!
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Old Nov 25, 2012 | 06:40 PM
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NGK TR6 is what I run
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Old Nov 25, 2012 | 06:49 PM
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NKG TR6 are not the standard on a stockish motor, NGK TR55 is the norm if going with a brand other then Delco
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Old Nov 27, 2012 | 12:23 AM
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Originally Posted by baalic
NKG TR6 are not the standard on a stockish motor, NGK TR55 is the norm if going with a brand other then Delco
Quoted for truth.
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Old Nov 27, 2012 | 12:40 AM
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41-110 all day bud
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Old Nov 27, 2012 | 03:14 AM
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Originally Posted by baalic
NKG TR6 are not the standard on a stockish motor, NGK TR55 is the norm if going with a brand other then Delco
Anyone have an idea why these are so hard to find?
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Old Nov 27, 2012 | 03:46 AM
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you can use tr5
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Old Nov 27, 2012 | 04:08 PM
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Originally Posted by fspeedster
Anyone have an idea why these are so hard to find?
Every parts store in my town has them, order then from autozone and have them shipped to you?
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Old Nov 27, 2012 | 05:34 PM
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Delcos for life...I don't like any jap **** in my v8 lol...meanwhile prob half performance parts on my car are prob from china
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Old Nov 27, 2012 | 09:14 PM
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Originally Posted by wildcamaro
Delcos for life...I don't like any jap **** in my v8 lol...meanwhile prob half performance parts on my car are prob from china
Last I checked, delco bought NGK, and lots of stock ls1's came with Denso's stock... Mine did, so your flawed in your theory sir
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Old Nov 27, 2012 | 09:43 PM
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I didn't know that bought denso's coming stock, was that just in later models I assume 01-02?
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Old Nov 28, 2012 | 05:35 AM
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Originally Posted by wildcamaro
I didn't know that bought denso's coming stock, was that just in later models I assume 01-02?
Not sure the years, the only 4th gens I've ever owned were 2002's.... But yah I didn't believe it when I changed them so I looked it up....corvette forum guys were discussing the same thing lol
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Old Nov 28, 2012 | 06:46 AM
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delco are 12621258 but i perfer TR5
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Old Nov 29, 2012 | 04:13 PM
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Tr55. Any auto parts store should have them.
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Old Jan 29, 2013 | 01:55 PM
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What NGK's are the AC Delco equal to? I'm doing a H/C install with 11:1 comp but my advance auto only has NGK TR5 IV. I'd rather use ac delco's if possible. I'd also like to get them from Advance and use the online coupon codes!
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Old Jan 31, 2013 | 10:00 AM
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Originally Posted by maxpower_454
What NGK's are the AC Delco equal to? I'm doing a H/C install with 11:1 comp but my advance auto only has NGK TR5 IV. I'd rather use ac delco's if possible. I'd also like to get them from Advance and use the online coupon codes!
Anyone?
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Old Jan 31, 2013 | 08:51 PM
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Originally Posted by maxpower_454
Anyone?
http://www.acdelco.com.au/PDFs/Catal...rk%20Plugs.pdf

This is AC Delco's spark plug book.

Page 14 lists the stock plugs for LS1's. Page 55 has the heat range for platinum plugs.
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