GT40 Head question?
05-06-2007, 07:34 PM
#11
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RE: GT40 Head question?
ORIGINAL: tortugasmoker
i lookin at gettin some gt40s from the junkyard cuz my e7s are shot. i have the cobra upper and lower intake already. do i need to modify anything or can i just bolt them on? i was thinkin about gettin the e303 cam too. i have bbk unequal shorties too will those bolt up to the gt40s? i dont want the gt40ps i want the ones that came on the cobra as im goin for a cobra look under the hood. any input would be great, thanx in advance.
i lookin at gettin some gt40s from the junkyard cuz my e7s are shot. i have the cobra upper and lower intake already. do i need to modify anything or can i just bolt them on? i was thinkin about gettin the e303 cam too. i have bbk unequal shorties too will those bolt up to the gt40s? i dont want the gt40ps i want the ones that came on the cobra as im goin for a cobra look under the hood. any input would be great, thanx in advance.
Oil
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and others stuuf im fogetting
05-07-2007, 01:01 AM
#13
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RE: GT40 Head question?
ORIGINAL: mrbigshot
mac's and most other unequel shortys need dimpling, and 90degree ends to work. it also takes a lot of effort to get the plugs out.
mac's and most other unequel shortys need dimpling, and 90degree ends to work. it also takes a lot of effort to get the plugs out.
05-07-2007, 01:20 AM
#14
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RE: GT40 Head question?
the specific will work, it was all in regards to his current headers and them bolting up with no modifications. they do require minor mods so i said the wont work regarding his application.
05-07-2007, 01:59 AM
#15
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RE: GT40 Head question?
i never did understand why you guys buy headers and dont get long tubes anyways..... or at LEAST equal length shorties. how much gain can there possibly be going from a ford exhaust to an aftermarket unequal shorty? cant be all that much, seems like money pissed away
05-07-2007, 04:42 AM
#17
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RE: GT40 Head question?
I put gt-40p's on my car, which 94's are a little different, but the only real problem i had was having to zip tie the plug wires back so they don't rub the headers and burn into them... That's the only downfall on them... Otherwise a great head for the price... Second set i've owned...
05-07-2007, 04:44 AM
#18
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RE: GT40 Head question?
And for people using them on 94-95's, MAKE DAMN SURE you put plugs in before you put the headers on cuz you can't get the #7 plug in the head with full lenth headers bolted to the head... Found out the hard way...
05-07-2007, 11:48 AM
#19
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RE: GT40 Head question?
One thing the guy did right on my car, long tubes.
So are GT40p's from 97 1/2+ explorers or pre 97 1/2?
Any idea what to expect to pay for a set from a junkyard? Would my trickflow valve springs in my stock heads now swap over?
So are GT40p's from 97 1/2+ explorers or pre 97 1/2?
Any idea what to expect to pay for a set from a junkyard? Would my trickflow valve springs in my stock heads now swap over?
05-07-2007, 01:33 PM
#20
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Location: Citrus County, FL
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RE: GT40 Head question?
your springs will be a direct swap, price depends on the place. could be 50 bucks for the pair, could be 400 for the pair.
if your going to get the 97 1/2 or earlier 40's, everyone recommends getting about .030 milled off to bring the chamber size back to where it should be so your not loosing compression. (this is a good time to go ahead and do a valve job so everything is nice and tidey)
if your going to get the 97 1/2 or earlier 40's, everyone recommends getting about .030 milled off to bring the chamber size back to where it should be so your not loosing compression. (this is a good time to go ahead and do a valve job so everything is nice and tidey)