Spark plugs for GT40P heads ????????? - Ford Muscle Forums : Ford Muscle Cars Tech Forum
 
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post #1 of 8 (permalink) Old 10-16-2005, 04:57 AM Thread Starter
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Spark plugs for GT40P heads ?????????

Any one running P Heads?........and what kind of plugs do you run for mostly street driving ?
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post #2 of 8 (permalink) Old 10-19-2005, 05:22 AM
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Spark plugs for GT40P heads ?????????

I'm running Autolite copper plugs, whatever the correct model # is for an Explorer with P heads. I tried Platinum but they fouled quickly with my old style ignition.

Neal
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post #3 of 8 (permalink) Old 11-30-2005, 01:00 PM
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Spark plugs for GT40P heads ?????????

Recomended plug for GT-40-P heads = Autolite #104.
Recomended plug for GT-40-Y & X heads = Autolite #764

I have used the #104 for a year on my P heads without a miss.

1994 Ranger Splash 5.0 HO, Reworked AOD, 8.8 Diff w/ Moser Axles, Auburn Locker w/4.30 Gears, Balanced Rotating Assembly, FRPP Crank, Scat Rods, 10.1 Forged Speed Pro Pistons, P&P GT40P Heads, F303 Rllr w/1.7 Rockers, Air Gap Man w/Demon Carb, Hookers.
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post #4 of 8 (permalink) Old 11-30-2005, 02:54 PM
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Spark plugs for GT40P heads ?????????

I use #764's on my "P"'s.
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post #5 of 8 (permalink) Old 11-30-2005, 02:54 PM Thread Starter
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Spark plugs for GT40P heads ?????????

I was told to run 104s,but never did. I have a set of 104s and know will install themthanks
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post #6 of 8 (permalink) Old 10-18-2006, 06:04 PM
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Spark plugs for GT40P heads ?????????

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post #7 of 8 (permalink) Old 05-31-2015, 07:18 AM
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Re: need help

i have a built 351w thats built to a 363 stroker wanting to put a set of good heads on it its punched .40 0ver flat top pistons e303 cams highvolume oil pump 8 quart oil pan polished heads new valve springs and pushrods lifters ect. and forged crank im trying to get more power out of it and was told from the guy that built the engine if i went aluminum heads and diff lifters and rockers i could get it close to a 408 but im not sure what would be a good head to go with if any
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post #8 of 8 (permalink) Old 05-31-2015, 09:41 AM
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Re: Spark plugs for GT40P heads ?????????

Mustangbuilder - welcome to the Forums. But, your stroker question has nothing to do with GT-40P spark plugs. Please go to the Stroker Engines section and start a new thread. This will get you better answers quicker.

David

Go to the Stroker Engines section and click on New Thread:

-=≡ If it was easy everyone would do it ≡=-
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