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-   -   Sparkplugs for GT40P Heads (http://forums.mustangworks.com/showthread.php?t=39206)

saleen243 09-18-2003 03:33 PM
Sparkplugs for GT40P Heads
 
What sparkplugs are used with the GT40P Heads..... I am putting some GT40P Heads on my 91 coupe....:D

QuantumMotorsports 09-18-2003 11:13 PM
Ford Motorcraft AWSF-32C.

Jeff Chambers 09-19-2003 06:17 AM
Autolite 103 or 104, depending on the heat range you like. I've also run Autolite AR474 for a short-tip, side electrode plug if you've got plug to piston clearance issues like I did. These are two heat ranges colder than a 103 though so they're best for a high compression race engine.

fiveohpatrol 09-19-2003 10:16 PM
Autolite 104 is what I run in mine. Can't beat the price, or the fact that you can pick them up at walmart.

I'll be putting 103's in it when I grow the balls to put the nitrous back on it.

srv1 09-19-2003 10:34 PM
or go here:heat range :D

James:cool:


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