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Discussion Starter · #1 ·
are all the heads on the 97 explorer gt40 heads? with the 302
reg gt40 or gt40p ? i know there iron heads i have a shot at a set pretty cheap.. also how do you tell from looking without taking them off?
 

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'Early' '97 Explorers and Mountaineer had GT-40 heads. 'Late' had GT-40P heads.

GT-40 heads have "GT" near the #1/#8 spark plug and "|||" (three vertical bars) on the front end of each head.

GT-40P heads have "GTP" near the #1/#8 spark plug and "||||" (four vertical bars) on the front end of each head.
 

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also GT40 heads have the same spark plug angle as your stock heads while the Ps have the spark plug perpendicular to the head.
 

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Glad those two helped you.
 

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Discussion Starter · #5 ·
Thanks guys ! if i can get them for 50 bucks and a head job for around 200 i might come out on top but thats still alot of money for 20 more hp or am i off on this figure?
 

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That is cheap for 20hp...also w/ the gt40-p heads...i have heard but not positive on this...that you would have to buy aftermarket headers...they stock ones won't fit...anyone know if this is true?
 
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