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Old 12-14-2014, 08:23 PM   #1
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GT40Intake Question

I've read several threads on this subject, but it's got me somewhat confused

I've got a 1995 GT. I'm doing a HCI using Gt40 heads and intake with an E303 cam. The intake I have is a non EGR intake. I've heard I can still use an external EGR, but not certain how to do that. Can someone clarify this for me. I've got to have the EGR for emissions

TIA

Jim
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Old 12-14-2014, 09:42 PM   #2
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Your 95 GT already uses an external EGR. It doesn't matter which one of the intakes you use on a 94/95 car they all hook up exactly the same.


EGR/Non EGR only matters for 93-down Fox Mustangs.
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Old 12-15-2014, 03:55 PM   #3
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Here is a good little site.....


The Ultimate GT40, Cobra and Explorer Intake Manifold FAQ - FiveOhInfo.com
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Old 12-15-2014, 05:31 PM   #4
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Site seems accurate. Gt40 lower ported will support all 302 sized heads without running out of air.

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Old 12-16-2014, 04:11 AM   #5
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I honestly want a gt40 tubular for looks only lol but too much money and not the best out of the 3 intakes


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Old 12-16-2014, 02:45 PM   #6
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Quote:
Originally Posted by racks2relax View Post
I honestly want a gt40 tubular for looks only lol but too much money and not the best out of the 3 intakes


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They're all the same performance wise. Don't believe anything you read on the internets that tells you otherwise. Just go get an explorer intake out of the JY for $100, send the lower out to Tom Moss for porting to 240-250 cfm, have the upper blasted and coated so its pretty. Done.
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Old 12-16-2014, 04:13 PM   #7
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The tubular does look AWESOME but like I always say this is a budget build then try not to dump too much money into it. If you plan on going for more ponies then look into a used Holley or RPM II.
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Old 12-16-2014, 06:17 PM   #8
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All looks the same with the hood closed. A nice powdercoated Exploder intake looks real good. Plus you can always get a custom plate made that goes where the Exploder plate went. I need to learn how to work the laser etcher at work...
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Old 12-18-2014, 01:56 PM   #9
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I've heard of that before, opening up the lower intake makes a huge impact right? Meaby not huge but a good difference. Where's this guys shop out of? And I agree smurf gotta stay on the budget


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Old 12-18-2014, 02:05 PM   #10
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Originally Posted by racks2relax View Post
I've heard of that before, opening up the lower intake makes a huge impact right? Meaby not huge but a good difference. Where's this guys shop out of? And I agree smurf gotta stay on the budget


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If you aren't running aftermarket heads or ported GT40s then doing the lower intake is a waste of time. The GT40s flow around 200cfm in stock trim and that's what the lower flows in stock trim. Opening up the lower and not the heads will actually create a shelf where the intake port opening is bigger than the intake on the head. You want the ports to be as matched as possible.
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Old 12-24-2014, 12:20 AM   #11
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There's only 2 semi-difficult parts to installing the GT40 Intake & Heads. On the Intake ....
It's getting the Vaccumm lines set up right. Also you have to use a Throttle Body Elbow Adapter. DO NOT BUY A PRO PRODUCTS ELBOW ADAPTER. It will not fit. It only fits the Typhoon Intake made by pro products. I made that mistake & out $85 because of it.
The GT40 Heads do not have the Air Lines on the back of the heads like the stock E7 Heads do. You either have to delete your smog pump or just make it appear like those lines are hooked up by just bolting them to the back of the GT40 Heads. If you have Cats & want to keep them...you'll have to bolt the lines to the heads because there's also lines off your smog pump that feed air to your cats. Bolting the lines to the heads for looks more less wont hurt anything.
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Old 12-24-2014, 06:43 AM   #12
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Originally Posted by Hellish Horse View Post
There's only 2 semi-difficult parts to installing the GT40 Intake & Heads. On the Intake ....
It's getting the Vaccumm lines set up right. Also you have to use a Throttle Body Elbow Adapter. DO NOT BUY A PRO PRODUCTS ELBOW ADAPTER. It will not fit. It only fits the Typhoon Intake made by pro products. I made that mistake & out $85 because of it.
The GT40 Heads do not have the Air Lines on the back of the heads like the stock E7 Heads do. You either have to delete your smog pump or just make it appear like those lines are hooked up by just bolting them to the back of the GT40 Heads. If you have Cats & want to keep them...you'll have to bolt the lines to the heads because there's also lines off your smog pump that feed air to your cats. Bolting the lines to the heads for looks more less wont hurt anything.
Real Cobra GT40 heads have the air lines on the back of the heads. Mine did. Not sure about the early Exploder GT40s, I know the P heads do not.
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Old 12-24-2014, 12:54 PM   #13
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The GT40 Heads (3-Bar) off the 96 Explorer I used didn't have them. I could see them being on a set of Cobra Heads as they were designed for a Mustang & not a truck. Not sure why they didn't put them on the Explorers & Mountaineers.
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Old 12-24-2014, 12:56 PM   #14
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OP...If you want to see how to hook up the Intake Lines look in View My Pictures & you'll see pics titled GT40 Intake Lines.
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