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09-03-2007, 09:31 PM
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5.0 Roush intake kit
I was wondering if anyone has information on the GT 40 heads that were offered as part of this package. Were the CNC machined heads the iron gt 40's that came on the Cobra or could a person have ordered, the aluminum versions? If so would they have been the gt-40 "y" heads or the "x" style aluminum heads? I gather only the "y" heads were available then, but i am not sure. Anyone know?
Thanks.... 
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09-04-2007, 05:55 AM
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Roush offered 3 different 5.0 kits. Here they are.
Roush Induction System Applications Here are some articles about the intake. They both contain information about the heads. But i am not sure they directly answer your questions. http://www.fnsweet.com/forums/showthread.php?t=31574 Roush 5.0 Induction Article - Ford High Performance - Aug 1997 Roush will sell you set of their CNC ported heads. They are not cheap though. I have seen both the iron and aluminum versions.
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09-04-2007, 06:28 AM
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10-02-2007, 07:54 PM
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Aluminum heads...The original GT-40 heads...I have flow specs at home. I had my GT-40 irons machined to the same specs. I also have a set of very heavily ported E7TE heads cut for larger valves and engraved with "Roush Engineering" on the side. The flow chart equates the heads to be on par with the Trick Flows... not too shabby.
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10-03-2007, 02:59 PM
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I think they were SVO GT40 heads which came in iron and aluminium ,the GT40Y Heads came out later, I know the GT40 X heads have high intake ports and don't work with alot of intake manifolds so I'd stay away from them unless someone can confirm they work. Another thing to watch out for is using heads with screw in rocker studs, because these intakes need to use low profile valve covers the studs can hit the cover, pedistal mount is not a problem.
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10-04-2007, 02:43 PM
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I did some checking and the heads offered from SVO at that time would have been M-6049-L302 cast iron gt40 head and M-6049-J302 Aluminium version gt40, both can use a Felpro 1250 intake gasket which is a match for the 3 piece manifold. The Y and the X Heads need to use a Felpro 1262 intake gasket. If you are looking to use non ford heads with pedistal mount that use a Felpro 1250 intake gasket ,the only 2 I could find is Edelbrock Performer and AFR 165. Hope this helps.
John
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10-07-2007, 08:19 PM
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Thanks you guys, there is a set of aluminum j302's i can get my hands on. Big daddy, where did you get the roush engineering logo done? That is what i would like for sure!
I was trying to get flow info on the 185cc heads they sell nowadays, but i can't seem to find anyone at roush that will give them to you. I wonder if a guy took a set of j302's to Roush if they would cnc them and put there logo onto it? That would be really cool. One thing though i thought the j302's did not have emission set up on them? if that is true how could these kits have been certified? I also can get and i told the guy i would buy them when the come back from the shop a set of edelbrock 60379 heads that have had a huge amount of work done to them he is just getting them back from the shop to be freshend up. this is there site www.mcrp.us He says they flow as good as out of the box victor jr's. They have less than a thousand miles on them but it was at 1/4 mile at a time.. He is giving me a good deal on them, but they are stud mounted rockers... I like the j302 idea.. Mark
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10-07-2007, 08:29 PM
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I will have to look but the 94/95 cobra valve covers might fit with screw in rockers, prob not though.. I know that the 5.0 ho valve covers on the 91/93 thunderbird will not clear stock rockers on gt 40 iron heads, i had to get some 94/95 cobra's to work on this thunderchicken i am building right now.
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10-09-2007, 02:37 PM
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The heads were ported by roush, so I'm assuming they are the ones that machined the logo into the head. I think the new Roush heads are AFR's. That deal was in the works when I was still there. Supposedly, they have special Roush hardware and stuff, but I would take that with a grain of salt.
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10-10-2007, 12:16 AM
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I hear you on that. I know the afr's are really nice heads, but just to have the roush logo engraved on them would be just so nice, i guess its a matter of trying to replicate the heads that came with the intake is really worth it, as i bet no matter how much work you do to them and all the money you spend doing it you still won't have a good as a head as what is out there nowadays. To get those e7te's to even come close to what trick flows do must have cost alot.. although if you were working at roush, maybe not. I had my gt 40 irons rebuilt at a local shop just to spec and that was expensive, they told me 100.00/hr just for porting.. I sure would like to get my hands on a set though that were done by roush that were with the kit, just to keep it authentic..
Do you have any contacts at roush anymore? I once read an article in mm and fast fords and it was about an old parts guy at roush and the even gave a contact# for him for old parts they still had on the shelves... I should have kept that info.. I guess i am going to try for a set of j302's and see if roush will cnc them, that will prob. still be less than the 185's the have now.. If you have any contacts there please ask for me, i will pay to have them done at roush... i guess i could put up a post in the classifieds.. Thanks dude.. Mark
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10-10-2007, 09:09 AM
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Try Red Johnson at Roush. He worked in the engine building (building 6 I think.) He has all sorts of NASCAR take-off engine parts as well as some really odd stuff. His number was in the older Ford Motorsports catalog. You should be able to call 1-800-59ROUSH and have them transfer you.
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10-10-2007, 09:24 AM
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Thanks, i called Roush just before checking this and i will try Red Johnson. The guy i talked to one the phone was a dick i got the price for the 185cnc machined and did confirm that they are afr's, it is $2672.00. I also asked if i had an old set og heads if they would cnc machine them and he said we don't touch used heads and then i told him they are nos and he repeated the same thing. I then asked okay can i get the flow #'s on the machined heads and all the tech info on them all i got was we don't have that information..... The guy talked like a high school science teacher all in a monotone voice, i then asked him how do you expect to sell these if you can't supply the info on them, he said is there anything else i can help you with sir?
WTF, is wrong with these people?i felt like ringing his neck.... oh well i am gonna try again....
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10-10-2007, 10:08 AM
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Well, i talked to ol'Red, he is quite the guy. Very helpful and gave me the skinny on alot. He faxed me the complete flow data on the heads which is very cool of him to do. He did tell me some disturbing news though. I guess some of the higher ups at Roush destroyed everything they had left for the kits, and he mean't everything. He said that Jack doesn't even know about it and when he finds out one day that there will be bloodshed!!! The dyes are down south now with the machine at roush/ yates racing, but he thinks he still has the tapes for the program that runs the cnc machine for the heads, if he can find them he is going to let me have them and he has me on his list of hard to get parts, like the cylinder heads and anything else related to these kits!!! Way COOL!!! i am glad i got in touch with him.
He faxed the info to my fathers fax as i don't have one and when i have it i will post it...... Not bad for a Canadian newbie eh..... Last edited by Pro SC : 10-10-2007 at 10:10 AM. Reason: spelling
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10-10-2007, 10:18 AM
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Cool. When you get that fax scan it in for us here. 
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10-10-2007, 05:03 PM
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Thats cool , keep us posted.
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10-11-2007, 06:07 PM
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10-11-2007, 07:00 PM
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I have it here, but i am having problems getting it posted.
It is in pdf format and i have tried almost everything. It is either to small to see on here or the file is to large to upload. I can email it to one of you guys if you can post it so everyone can see....
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10-14-2007, 08:44 AM
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Another thing i forgot to mention that "Red" said;
Roush does not do the CNC machine work on the new 185cc AFR heads. AFR does all the work to them. Roush only builds the engines right now but they are looking at machining them again in the future. He said to try and contact AFR for the flow data on the new heads. Roush apparently tested all the heads again out there and found the AFR's to work the best for there needs. So i guess the next thing to do is contact them. Also it won't hurt to try Yates/ Roush racing for any chance of getting them to machine a set of gt 40 heads with the original cnc program, doubt a guy would have any luck, but you never know unless you try. It would be nice if Red comes through with the cnc program, i really want to get that. Big Daddy, on the gasket issue, i have two of most everything in these kits. I am going to document every part that comes with these as the blue one i have is complete. I am going to try to get copies of the gaskets made sometime down the road before i install the intake on my car. I am not sure where to start on that but i am going to try to find someone local to me and get a bunch made up. I also want to find all the parts i am missing with the one kit to complete it, but that will take some doing. Earlier this year before i owned one of these, there was a guy selling a Roush fuel rail for one of these intakes on Ebay. I asked about it but i wasn't sure if it was for real so i didn't bid on it. It only went for like $20.00 or something, so i should have bought it in case it was legit. The guy did say that it worked fine on his intake.. Who was that? anyone from this site? If anyone out there has parts for these kits, please contact me so i can complete my second kit... I will keep you updated on the heads, and gaskets, which will be a while i am sure before i have any sets made. I have to be sure that the originals do not get damaged so i am not going to let just anyone have them to copy.. I hope someone tries to do something with the flow data i posted earlier, i tried everything i can. You need a good version of Adobe to do it correctly. It just needs to be made a bit larger and the text more bold to read on here...... 
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