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Old 12-03-2009, 02:49 PM   #1
gmcdude
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What brand of spark plug?

What brand and size of spark plug are you running in your 350,327, ?

Last edited by gmcdude; 12-03-2009 at 02:52 PM.
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Old 12-03-2009, 02:52 PM   #2
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Re: What brand of spark plug?

I only run Bosch Platinum or NGK.

Autolite is absolute trash. Champion isn't far behind. AC Delco is decent.

Just my $0.02.
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Old 12-03-2009, 02:55 PM   #3
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Re: What brand of spark plug?

Anything but Champions. I use AC R44ts or R45ts if it uses the tappered seats. About 71 up. On the flat seat with gasket I use R44s or R45s.
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Old 12-03-2009, 02:59 PM   #4
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Re: What brand of spark plug?

I only run NGK's now. They're in everything I own. The 67, silverado, s-10, and corolla.
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Old 12-03-2009, 03:07 PM   #5
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Re: What brand of spark plug?

AC Delco ... good enough for GM, good enough for me.
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Old 12-03-2009, 03:18 PM   #6
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Re: What brand of spark plug?

AC Delco
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Old 12-03-2009, 03:20 PM   #7
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Re: What brand of spark plug?

I'm running NGK's right now as well.
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Old 12-03-2009, 03:28 PM   #8
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Re: What brand of spark plug?

ngk v power
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Old 12-03-2009, 03:43 PM   #9
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Re: What brand of spark plug?

AC Delco. I even had Motorcrafts *cough* in it once and they worked fine too. Only plugs I ever had trouble with were Champions -- that was a long time ago and I have not tried them since. Burn me once....
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Old 12-03-2009, 04:03 PM   #10
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Re: What brand of spark plug?

AC Delco here as well.
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Old 12-03-2009, 04:06 PM   #11
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Re: What brand of spark plug?

ac delco
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Old 12-03-2009, 04:15 PM   #12
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Re: What brand of spark plug?

GMCDUDE what acan of worms you have opened !! haha
Choice of spark plugs is like choice of color. At my place we run AC Delco in GM's Motorcraft in F^&*'s, and Champion in Chrysler. The asian will mostly get NGK.

I personally have AC DELCO in both of my old Chevy's amd will use nothing else
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Old 12-03-2009, 04:23 PM   #13
gmcdude
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Re: What brand of spark plug?

cparman I think the plugs that the PO had in this engine where too cold for the engine and then I had carb. problem that cause another set to foul out but this set is going to be hotter.
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Old 12-03-2009, 04:32 PM   #14
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Re: What brand of spark plug?

for alot of things i use the on sale brand
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Old 12-03-2009, 04:59 PM   #15
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Re: What brand of spark plug?

NGK's are supposed to be really good. i run those on my vintage honda motorcycles. many cars can use other brands of plugs, but it is good insurance to stick close to the factory.

Chrysler: Champion
Ford: Autolite
GM: AC Delco

etc, etc, etc.....
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Old 12-03-2009, 05:24 PM   #16
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Re: What brand of spark plug?

Autolite or AC Delco. I have always had good results form both.
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Old 12-03-2009, 05:26 PM   #17
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Re: What brand of spark plug?

NGK Irridiums in everything I own.
Tried Bosch had nothing but problems, Champion truck plugs in the 454 did OK, but the NGK's sing, no start problems at all. Love those things, except the price, but they work.
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Old 12-03-2009, 06:14 PM   #18
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Re: What brand of spark plug?

AC Delco.It doesn`t really matter.But,I wouldn`t put a Champion in my push mower.
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Old 12-03-2009, 06:54 PM   #19
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Re: What brand of spark plug?

ac delco here ngks in my ford anything but "neverlites" (autolites and champion
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Old 12-03-2009, 06:58 PM   #20
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Re: What brand of spark plug?

ac
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Old 12-03-2009, 07:01 PM   #21
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Re: What brand of spark plug?

I use accell shortey's. I have shorty headman headers, the short plugs help with the headers
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Old 12-03-2009, 08:21 PM   #22
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Re: What brand of spark plug?

We got to use spark plugs?
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Old 12-03-2009, 08:57 PM   #23
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Re: What brand of spark plug?

Quote:
Originally Posted by Shane View Post
AC Delco ... good enough for GM, good enough for me.
My thoughts exactly.
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Old 12-03-2009, 09:15 PM   #24
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Re: What brand of spark plug?

AC Delco
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Old 12-03-2009, 09:33 PM   #25
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Re: What brand of spark plug?

have been a technition for 18 years and i have made more money on people putting bosch platinum plugs in theyr car than brake jobs ! they foul out every time ! put factory plugs in it and you will never have a problem !
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