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11-14-2005, 11:51 PM
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#1 |
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Senior Member
Join Date: Mar 2003
Location: St robert Mo
Posts: 2,001
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ngk plugs
Those running NGK's what plug number are you running mild built 350 with HEI and power coil?
Thanks I am looking at running the UR4(6630)
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1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO |
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11-15-2005, 08:46 AM
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#2 |
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Senior Member
Join Date: Mar 2003
Location: St robert Mo
Posts: 2,001
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Re: ngk plugs
anyone
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1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO |
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11-15-2005, 09:22 AM
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#3 |
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.........................
Join Date: Nov 2001
Location: benton, ky
Posts: 288
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Re: ngk plugs
YR5 's 7052 or 7062 i think
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1971 LWB Chevy C-10 350/350 3:42 eaton 
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11-15-2005, 12:19 PM
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#4 |
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Senior Member
Join Date: Mar 2003
Location: St robert Mo
Posts: 2,001
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Re: ngk plugs
they list the 7052 as heavy duty and the 6630 as light duty wonder what the difference is?
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1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO |
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11-15-2005, 12:49 PM
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#5 |
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Registered User
Join Date: Mar 2005
Location: Just outside Durham, NC
Posts: 894
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Re: ngk plugs
Correct me if I am wrong, but I think the duty is the heat discharge rating of the plug.....isn't that wright?
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11-15-2005, 01:07 PM
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#6 |
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Senior Member
Join Date: Mar 2003
Location: St robert Mo
Posts: 2,001
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Re: ngk plugs
I dont know they ask like 5.7 light duty or 5.7 heavy duty. Just wondering if by heavy duty they mean towing and such and light duty as daily driver to work and stuff.
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1968 c10 lowered 3" 4" 355/Th400 built by Hatfield racing in joplin MO |
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