I need a spark plug Recomendation

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Jun 20, 2006 | 12:14 PM

Cgillies86

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I need a spark plug Recomendation

I am having heads and cam installed soon. And I was wondering which spark plugs should I use with 10.9 to 1 compression? Any brand recomendations or part numbers?

Last edited by Cgillies86; Jun 20, 2006 at 12:43 PM.

Jun 20, 2006 | 12:27 PM

DYING BREED

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From: Sebring, Fl

NGK TR 6 are awesome plugs for the ls1....you can run the tr 55's if you plan on spraying

Jun 20, 2006 | 12:33 PM

Mssingkid

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Quote:

Originally Posted by DYING BREED

NGK TR 6 are awesome plugs for the ls1....you can run the tr 55's if you plan on spraying

Wrong...

TR55 for N/a Use the TR6 for spray..

Jun 20, 2006 | 01:20 PM

brad8266

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From: Watertown, NY

Quote:

Originally Posted by Mssingkid

Wrong...

TR55 for N/a Use the TR6 for spray..

Dont EVER spray on TR55's, ever!!! Spray on TR6's. The TR6 is good for your higher compression too.

Jun 20, 2006 | 02:01 PM

1sick'98WS6

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From: Phoenix AZ

tr6 are colder plugs made for spraying, the tr 55s are for the na

Jun 20, 2006 | 02:08 PM

Cgillies86

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Well my local murrays had AC delco 41-985 Iridiums. I paid 5.99 each, hopefully these work out ok.

Jun 20, 2006 | 11:46 PM

MIKE_84

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Ac delco plugs have lost alot of there quality. I would stick with NGK Tr55's if your not spraying.

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Jun 21, 2006 | 08:05 AM

slow trap

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From: tennessee

i like the tr6 also.they seem to last forever and are great on the jug.

Jun 21, 2006 | 08:25 AM

#10

STH LRD

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I run a TR 7 IX in my C5.

Shahram

Jun 21, 2006 | 09:35 AM

#11

Cgillies86

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Quote:

Originally Posted by MIKE_84

Ac delco plugs have lost alot of there quality. I would stick with NGK Tr55's if your not spraying.

How did they lose their quality?

Jun 22, 2006 | 10:16 PM

#12

MIKE_84

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From: Waco, TX

Well AC plugs are built overseas now for one, and just from what i've seen at work (napa), alot of people are not happy with them anymore. Most of the mechanics who buy from us stay away from them now because of alot of bring backs for a bad plug.

Jul 1, 2006 | 06:50 AM

#13

DAVESS02

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When my work did warranty for Workhorse, the old "p" GM chassis for motorhomes and busses, we saw a lot of bad plugs. Those chassis use denso plugs on the 8100 motor and it seemed like every5th or 6th warranty issue we had was fixed by a new set of plugs.