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dart heads. which plugs?

Generation III Internal Engine 1997-2006 LS1 | LS6

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dart heads. which plugs?

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Old

Sep 20, 2007 | 05:39 AM

#1

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dart heads. which plugs?

have a set of dart 225 heads. i remember reading that NGK tr-55's wont seat right? that they need to be longer.... what ngk plugs do i need? or another brand?

Old

Sep 20, 2007 | 11:18 AM

#2

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From the dart page.

Q: What kind of spark plugs should I use with my new Dart heads?
A: 3/4" reach gasketed plugs in the correct heat range for your application. Consult the manufacturer for heat range information.

Old

Sep 20, 2007 | 11:40 AM

#3

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NGK
Tr- 55's
14mm, .708"(18mm) reach tapered seat

http://www.ngk.com/search_char.asp?t...=37&action.y=7

FR5 rings a bell but they are gapped .39

Old

Sep 20, 2007 | 12:11 PM

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From: athens

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+1 tr55's

Old

Sep 20, 2007 | 12:21 PM

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i have tr 55's in there now that are all black and sooty, i fear they are the wrong plug as per Darts website. Dart requires a 3/4" reach gasketed plug. the 55's are 5/8 reach tapered plug.

the FR5's are 3/4 reach gasketed. but are factory gapped at .39 not sure if theese are the right heat range. Autolite 3924's are the same specs. Am i looking at the right plugs?

Old

Sep 20, 2007 | 12:36 PM

#6

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+1 TR-55s

Old

Sep 20, 2007 | 10:16 PM

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I called Dart after I bought my 225's. They told me either gasketed or tapered would be just fine. They designed them to use either. I used tr55's.

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Old

Sep 21, 2007 | 07:09 AM

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From: Little Rhody

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I am running Denso gasketed, can't remember the number and they are also one heat range cooler. I can look them up if you need it.

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Old

Sep 21, 2007 | 07:30 AM

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I was running TR55s in my Dart heads, but recently went to TR6s. They both will work fine.

Old

Sep 21, 2007 | 11:50 AM

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I'm using NGK BKR6E-11.

Old

Sep 23, 2007 | 07:30 AM

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Quote:

Originally Posted by NB99Z

I'm using NGK BKR6E-11.

Me too

Old

Oct 18, 2007 | 10:17 PM

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Quote:

Originally Posted by NB99Z

I'm using NGK BKR6E-11.

^^^^good plug for nitrous...........FR5's are for motor.

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dart, heads, headsngk, plugs, spark

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