Will Mac Equal Lengths fit GT40Ps?

[Kdubslugga]

Just wanted to know, im thinking about it.

 

[2000xp8]

I don't think so, unless mac makes a set specifically for them.

 

[88stangmangt]

any headers that will fit a 93 cobra should fit gt-40's

 

[04sleeper]

Bolt on, yes. Fit with the proper spark plug clearence, no.

 

[2000xp8]

any headers that will fit a 93 cobra should fit gt-40's

He said P's, i've always been under the impression that p headers are a completely different set.

 

[04sleeper]

He said P's, i've always been under the impression that p headers are a completely different set.

P headers just have the tubes moved further out from the spark plugs to give them more clearence. The P heads have the spark plug at a different angle.

P headers will work on stock heads, but stock type headers will not work with P heads.

 

[Michael Yount]

89sleeper summed it up nicely. I'd add - there appear to be a handful of regular headers that will work with the P's - but it's not by design; it's because aftermarket header manufacture is in general a VERY low quality process. Sometimes a header comes out that has it's primaries set in a way where there's JUST BARELY enough clearance to get the plug wrench on even with the P's. I don't think you can count on the fact that because someone posts and says that "X" brand header worked with his P's, that that will occur everytime with that header and your P heads.

Also - folks have posted that there are shorter plugs available that solve the plug clearance problem -- but I don't have any firsthand knowledge of that, much less a brand/part number.

88stangman - GT40 irons, and GT40P's are two different heads.

GT40 Irons - available originally on 93-95 Cobras, and 95 through the first two production months of 97 Explorer/Mountaineers

GT40P's - originally available on the last 10 production months of 97 - 2000 Explorer/Mountaineers

GT40Y - called 'turbo swirl'; aluminum heads from FRPP

GT40X - called "Xtra performance"; aluminum heads from FRPP

GT40Z - latest, highest performing aluminum head from FRPP

No wonder when someone says "I've got GT40's..." it's confusing.

 

[2000xp8]

I've also heard of the shorty style plugs working, but i've also heard they are like $25+ a plug, so for 200 bucks you might as well just buy the headers.

 

[donsbad68]

gt40p heads are different then the explorer type gt40 heads right? and no headers but gt 40 spec headers with fit the gt40.

 

[Michael Yount]

Don - from further up in the thread:

"88stangman - GT40 irons, and GT40P's are two different heads.

GT40 Irons - available originally on 93-95 Cobras, and 95 through the first two production months of 97 Explorer/Mountaineers

GT40P's - originally available on the last 10 production months of 97 - 2000 Explorer/Mountaineers"