This is topic Junkyard GT40 parts in forum Tech Talk at Northern California Ford Owners  .


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Posted by AcesWild85 (Member # 2616) on :
 
I know you can get the gt 40 heads, upper and lower intake from exploers with a 302, but what years of explorers have the 302? What about the F or E series trucks? Do any of those have GT 40 stuff in them? Do any of them have a larger mass air meter that can be used in a 5.0?
 
Posted by shade-tree (Member # 298) on :
 
off the top of my head...

94-97.5 explorers = GT-40
97.5- '00 explorer = GT-40P

only explorers/mountaineers,lightnings and 93-95 cobras had the GT-40 heads
 
Posted by AcesWild85 (Member # 2616) on :
 
whats the difference between gt40 and gt40p?
 
Posted by shade-tree (Member # 298) on :
 
not much, honestly, more swirl, revised spark location, slightly higher efficiency, probably slightly smaller combustion chambers, and usually specific shorties are required, but most long tubes work.

probably within 5-10 HP of each other
 
Posted by AcesWild85 (Member # 2616) on :
 
would the stock 5.0 headers bolt up allright?
 
Posted by HungryHippo (Member # 537) on :
 
you need different headers for the "P"s, unless you have longtubes
 
Posted by AcesWild85 (Member # 2616) on :
 
How could you tell the 2 apart visualy? Is there a casting number on them or anything?
 
Posted by shade-tree (Member # 298) on :
 
easier than you'd think, the front of the head has 3 bars if GT-40, 4 if GT-40P, these are large, raised lines on the front of the head, like 2" long.

also, F77E (I think, going on memory) is casted under the GT-40P valvecover, along with the letters 'GT-40P' [Big Grin]
 
Posted by AcesWild85 (Member # 2616) on :
 
Cool! Thanks man
 




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