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Old 02-20-2011, 06:40 PM   #1
Jarred Hodges
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Default what spark plugs for iron eagle heads

I built another engine for my mustang. It is a 350 with trw domes, comp 292h hyd cam and a set of dart iron eagle 200cc heads. I was wondering what plug would be reccomended. I prefer to stay with an ac delco plug if possible
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Old 02-20-2011, 08:01 PM   #2
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Default Re: what spark plugs for iron eagle heads

This is what Dart says, have your parts store cross over to an AC plug.

"Angle or straight, .460 reach, tapered seat, Autolite AR133"
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Old 02-20-2011, 08:08 PM   #3
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Default Re: what spark plugs for iron eagle heads

thanks, I looked it up and there is not a crossover to ac delco so autolite plugs it is
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Old 02-20-2011, 08:09 PM   #4
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Default Re: what spark plugs for iron eagle heads

just cross the 133 the ar means autolite racing. and ac doesnt have racing plugs
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Old 02-20-2011, 08:12 PM   #5
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Default Re: what spark plugs for iron eagle heads

The Powerblock says DENSO Iridium Spark Plugs increase horsepower and lower emissions. You must run them.
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Old 02-20-2011, 08:14 PM   #6
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Default Re: what spark plugs for iron eagle heads

I prefer the autolite....but if you would like to try something else........Champion V59C or NGK R5673-8
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Old 02-20-2011, 08:14 PM   #7
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Default Re: what spark plugs for iron eagle heads

lol thats funny shit you better do power block says lol NOT ...


Quote:
Originally Posted by JBradley500 View Post
The Powerblock says DENSO Iridium Spark Plugs increase horsepower and lower emissions. You must run them.
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Old 02-20-2011, 08:46 PM   #8
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Default Re: what spark plugs for iron eagle heads

Quote:
Originally Posted by JBradley500 View Post
The Powerblock says DENSO Iridium Spark Plugs increase horsepower and lower emissions. You must run them.
I thought it was the E3 plugs.....lol Ive sold several sets of those and just about all came back complaining of misfires.....

BTW, only thing I can think of close to a ar133, is an R43T

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Old 02-20-2011, 08:55 PM   #9
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Default Re: what spark plugs for iron eagle heads

The AR133's foul real easy on the street but work great at the track in those heads.
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Old 02-20-2011, 08:58 PM   #10
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Default Re: what spark plugs for iron eagle heads

this is a track only car so autolites should be good. This is my 1st set of aftermarket heads so I was a little confused on plugs. I have always ran autolites in fords and ac delco in chevies
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Old 02-20-2011, 10:36 PM   #11
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Default Re: what spark plugs for iron eagle heads

r45ts
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Old 02-20-2011, 11:36 PM   #12
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Default Re: what spark plugs for iron eagle heads

This is on a 9.5:1 sbc
NGK R5673-6 for the street
NGK R5673-7 for the track
NGK R5673-8 with spray
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Old 02-21-2011, 09:32 AM   #13
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Default Re: what spark plugs for iron eagle heads

I use the AR133's..
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Old 02-21-2011, 09:11 PM   #14
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Default Re: what spark plugs for iron eagle heads

I bought a set of ar133's today
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