Whats the best spark plugs?

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Sep 4, 2008 | 04:18 PM

SSpade99

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From: Boston, Ma

Whats the best spark plugs?

Should I stick with AC delco? or somthing eles and how often are u supposed to replace them in the LS1's? every 24,000 miles?

Sep 4, 2008 | 04:23 PM

LS6427

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From: South Florida

Quote:

Originally Posted by SSpade99

Should I stick with AC delco? or somthing eles and how often are u supposed to replace them in the LS1's? every 24,000 miles?

I've tried them all, even the exotic 4 electrode ones. Its all hype.

I use NGK TR55's, they are the best ones. But your engine was designed with AC Delco's, so they will be perfect.

Even with stroker engines, just use NGK or AC Delco. You won't get better performance with any others.

Change them every 50,000 and you'll be fine, unless you have certain issues internally.

Sep 4, 2008 | 05:24 PM

Black 99 Bird

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Stay with the NGKs

Sep 5, 2008 | 02:13 AM

krazy4

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From: Yorba Linda, CA

NGK TR55 for N/A
NGK TR6 for a small shot

Sep 6, 2008 | 02:00 PM

Formulated

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AC Delco is good. NGK is great, and so is Denso, but Denso tend to be more expensive.

A lot of these plugs are hype. A traditional j-gap plug with an iridium electrode will last a really long time, and perform extremely well.

Sep 6, 2008 | 02:10 PM

mike#9

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I use TR6's for my H/C car. They seem to work good.

Sep 6, 2008 | 03:01 PM

Z28/2002

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From: Your girl's back door giving her the long stroke while you're at work

Most guys run NGK plugs

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Sep 6, 2008 | 04:01 PM

Hard Core Z28

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NGK for $2.00 is all ya need.

Sep 6, 2008 | 04:27 PM

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JScamaro

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I am running the AC delco ones while I'm bolt on but plan to switch to the NGK TR6 once I install my H/C and nitrous.

Sep 6, 2008 | 05:54 PM

#11

*98TransAm*

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From: Iowa

NGKtr55

Sep 6, 2008 | 06:51 PM

#12

HMERacing

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My car came with Denso Iridium stock but When it was time I switched to NGK (not Iridium)

Sep 7, 2008 | 06:33 AM

#13

1FST99Z

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NGK's here

Sep 7, 2008 | 10:39 AM

#14

snake charmer

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From: The south

NGKs all day . i run a tr6 which is a step colder but that is beacause of the power it is making now . ran the tr55s for a few years with no problems .