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#1
04-12-2006, 06:05 PM
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Colder plugs for 7.4?
I've done quite a few mods on my 7.4 and it looks like I need a colder set of plugs, but i'm having problems finding any for sale, can someone recommend an online source? I'm burning thought plugs in under 2k
 Thanks, Craig 
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#2
04-14-2006, 12:48 PM
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Re: Colder plugs for 7.4?
try this website
www.truckperformance.com
__________________
  2000 Silverado Z71, 5.3L, K&N GenII Air Intake, Y-pipe Exhaust (no muffler), Bosch Platnium +4 plugs, 242k miles and still running.
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#3
04-14-2006, 06:20 PM
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Re: Colder plugs for 7.4?
Thanks for the link.
I had a look but it does not look like they stock spark plugs at all, I am starting to suspect no one makes colder plugs for this engine, which could be a bit of a problem for me...
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#4
04-16-2006, 11:26 AM
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Re: Colder plugs for 7.4?
What brand of plugs and what year engine.
AC-delco drops from a 44 heat range down to 42. Try getting a spark plug book and check the heat ranges and drop down 1 or 2 heat ranges. MT
__________________
Remember proper testing gives us the answer to many problems. MT
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