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Spark plugs

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Old Jul 28, 2002 | 09:38 PM
  #1  
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rayray
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Default Spark plugs

What's a good spark plug to use on my '71 with 383cid engine. I'm using a set of trick flow heads, the pre- '87 versions. Thanks Ray. :chevy
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Old Jul 28, 2002 | 09:42 PM
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From: colorado springs CO
Default Re: Spark plugs (rayray)

if your using headers.., i like the bosch platinums... they are a bit smaller than the ac delcos and a great plug..

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Old Jul 28, 2002 | 10:41 PM
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Default Re: Spark plugs (rayray)

I run NGK's in both my normally aspirated and nitrous applications, have had very good luck with them. If your header clearance is small, Accel makes some shorty style plugs which are also excellent but harder to come by, Summit or Jeg's would be a good source for them. The A/C rapidfires have a pretty good reputation but I don't have any personal experience with them.

:cheers:
Pat Kunz
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Old Jul 29, 2002 | 09:38 AM
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yellow 72
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St. Jude Donor '09
Default Re: Spark plugs (rayray)

I've had great luck with Accel plugs...and at a buck fifty each :cheers:

Best of all they're yellow :lol:


[Modified by yellow 72, 8:40 AM 7/29/2002]
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Old Jul 29, 2002 | 10:10 AM
  #5  
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From: Austin TX
Default Re: Spark plugs (rayray)

I think the best cheapy plugs are the NGK's (what plugs do you have in now?)

That being said I just put aset of Bosh Platinum +4's in based on GKulls recommnedation (he runs his 383 hard!) I like the theory behind it, having the spark unshrouded, kinda like indexing, might be worth 5-10hp for me if its works(1-2% of 550)

Once I get a few miles on them, I 'll check em and see how they look.

I also, bought a set of NGK Irridium plugs...and if I get bored one day and go to the dyno maybe I swap and see if there is a difference. I think some of the C5 guys have been running these with good feedback.

I may also get crazy and order a set of HaloPlugs: http://www.haloplug.com/ $7/each
looks interesting. I am going to email them now.
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