SPARK PLUGS/ SWITCHIN IGNITIONS

« **on:** March 05, 2008, 07:52:03 PM »

I'm thinkin about going hei, how would I find out the correct plug to run . I know that s a loaded question , but I'm not talkin about heat range ,or gap, or reach, just #'? I've been runnin a ngk v plug ,always had pretty good luck with them........ anyway help.

« **Reply #1 on:** March 05, 2008, 07:56:29 PM »

good question, I've never thought about it but is there a "good" plug for HEI?

« **Reply #2 on:** March 05, 2008, 08:26:29 PM »

I used A/C Delco R44XLS gapped at 45

« **Reply #3 on:** March 06, 2008, 07:22:12 PM »

Rod that sounds like the plug I'm runnin in my suburban. Is there a plug expert in the house?

« **Reply #4 on:** March 06, 2008, 11:58:59 PM »

Quote from: SLCKREG on March 06, 2008, 07:22:12 PM

Rod that sounds like the plug I'm runnin in my suburban. Is there a plug expert in the house?

Probably is. Not me. That's what i used soooo...

« **Reply #5 on:** March 07, 2008, 05:51:51 AM »

Unless you know someone running nearly the same setup that can give you a solid recommendation, you need to start with a very standard spark plug. Then learn how to read spark plugs and replace as needed. The 44 heat range in AC plugs are going to be very close. I agree with the .045 gap with the HEI. Also watch your timing closely, total of 32-33 max until you get your plugs sorted out.

« **Reply #6 on:** March 07, 2008, 07:01:29 AM »

Hope this helps with reading spark plugs.

http://www.dragstuff.com/

Look under racing articles, spark plug reading 101

« **Reply #7 on:** March 07, 2008, 07:34:08 AM »

Thanks guys, yeh I was hoping someone on here was running a hei/bbc set up.

« **Reply #8 on:** March 07, 2008, 08:50:57 AM »

Quote from: SLCKREG on March 07, 2008, 07:34:08 AM

Thanks guys, yeh I was hoping someone on here was running a hei/bbc set up.

I was.

« **Reply #9 on:** March 07, 2008, 09:03:11 AM »

Kewl, thanks Rod, after I typed that last post I remember seeing Tom had an hei in one of his boats, or should I say a dui, (davis unified ign.) Maybe I'll ask him as well, I've had such good luck with ngk's I'd like to stick with them if I can figure out what one they recomend.

« **Reply #10 on:** March 07, 2008, 09:12:07 AM »

you could always cross reference the a/c ## to your ngk using a spark plug book?

« **Reply #11 on:** March 07, 2008, 09:14:51 AM »

Personally I run the Accell 8198's cause they are the header plugs and they are gapped at .050. I am running the MSD set up not the HEI set up , but they should be fairly close.

« **Reply #12 on:** March 07, 2008, 11:26:51 AM »

Arent you running the Brodix Aluminum heads? I'd try giving them a call they should be able to give you a real good baseline.

« **Reply #13 on:** March 07, 2008, 11:46:23 AM »

Thanks Josh, that's prolly a good idea, I know I need tapered seats , and the x-tra long reach, or whatever thats called.

SLCKREG

SPARK PLUGS/ SWITCHIN IGNITIONS

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