best intake manifold for mostly stock 5.0?

tmoss · Mar 8, 2004

I can't buy em cheap enough or in quantity - right now I have none. They sell on ebay for $90-130 all the time. Guys buy them and have them shipped to their name at my address "attention" my name for porting so I know who they are for. Works great, eliminates added shipping costs.

willys1 · Mar 8, 2004

tmoss said:
I can't buy em cheap enough or in quantity - right now I have none. They sell on ebay for $90-130 all the time. Guys buy them and have them shipped to their name at my address "attention" my name for porting so I know who they are for. Works great, eliminates added shipping costs.

Cool,out of the 3 stock,cobra,gt-40,,which would give me the best results after you port them,I have stock heads and cam. !993 LX with 373's aod

IndyBlk5.0 · Mar 8, 2004

with stock heads and cam it is not worth porting a gt40 / cobra lower out imo

scorp69 · Mar 8, 2004

hey t-mos, i have a lower for sale if you want.

91gt5.0 · Mar 8, 2004

i have a cobra that im goign to put on my car for now, and when i get the heads and cam i am going to have t moss port it. from what i hear a ported cobra can support plenty of power and out flows many after market ones.

tmoss · Mar 9, 2004

with stock heads, GT40, GT40P, Windsor Jr heads, the stock Cobra lower does not really need porting. I could balance the flow of the two front trunners to the rest of the runners, and that is what I did to my Explorer, but I'm not sure that would be worth the $100 I charge. We'll see how much power my stock cammed, GT40P headed, Expolorer intaked car makes this spring.

As far as which GT40/Cobra/Explorer to use? - they should all be the same except for sensor/EGR coolant holes that may or may not be there.

scorp69 - PM me a price shipped. I'll be out of town for 2 days.

dvs bullet · Mar 9, 2004

If I already have a ported stock intake, and machined TB to 65mm, the next resriction is in my heads right? They 've been ported and polished, stock valve size. Would it help them flow if I went to an Ecam from the stock one?

Michael Yount · Mar 9, 2004

tmoss - I'd add the GT40 Y303 turbo-swirl aluminum heads to your list above; they flow at low enough rates that the GT40 family of intakes needn't be massaged to get the most out of them.

IndyBlk5.0 · Mar 9, 2004

well i heard the afr heads need reworked every 50k or so, is that true with the gt40 iron heads? becuase i know its not true with the stock e7's. AFR's are not worth it to me if i have to rebuild them every 40-50k, i want something i can just keep on there

sleeper89 · Mar 9, 2004

IndyBlk5.0 said:
well i heard the afr heads need reworked every 50k or so, is that true with the gt40 iron heads? becuase i know its not true with the stock e7's. AFR's are not worth it to me if i have to rebuild them every 40-50k, i want something i can just keep on there

agreed. i really like the afr's but i'm not prepared to rebuild them every 50k miles. i'll probably go with something else *when* i do a head swap.

-steve

tmoss · Mar 9, 2004

dvs bullet said:
If I already have a ported stock intake, and machined TB to 65mm, the next resriction is in my heads right? They 've been ported and polished, stock valve size. Would it help them flow if I went to an Ecam from the stock one?

It would make more power, but how much is a guess.

tmoss · Mar 9, 2004

Michael Yount said:
tmoss - I'd add the GT40 Y303 turbo-swirl aluminum heads to your list above; they flow at low enough rates that the GT40 family of intakes needn't be massaged to get the most out of them.

True MIke, actually any head that flows less than 220cfm could be on the list as the GT40 family of intakes flow about 205-210 cfm.

tmoss · Mar 9, 2004

sleeper89 said:
agreed. i really like the afr's but i'm not prepared to rebuild them every 50k miles. i'll probably go with something else *when* i do a head swap.

-steve

Getting your rocker geometry just right will help on the bronze valve guide life - they do come with bronze guides don''t they? Ever heard the expression "wears like iron"? - What material do you think Fords iron head valve guide material is made of?

sleeper89 · Mar 9, 2004

tmoss said:
What material do you think Fords iron head valve guide material is made of?

aluminum... wait, no, this is a trick question... ummm.... titanium?

-steve

leakyfaucet · Mar 9, 2004

tmoss, how long does it usually take you to finish porting once you get the lower manifold? How well can you say you balance the air flow in the different ports?

87gtconv · Mar 9, 2004

I just bought a used Cobra intake for my bolt on engined 87 ragtop! I will clean it up good gasket it and put on a 65mm FMC TB and see how it does. BTW I have a speed density car!

tmoss · Mar 10, 2004

leakyfaucet said:
tmoss, how long does it usually take you to finish porting once you get the lower manifold? How well can you say you balance the air flow in the different ports?

Takes 3-5 days to get one done. Greg at XSR Cylinder heads flow tested one of my $100 lowers on his SF600 flow bench last month and got these results......

Hey, I recieved the intake today, and flowed it. Here are the #'s,
I have yet to flow a stocker. Soon as I get one I will flow it too.
Also, I flowed the intake without a clay entry, which would have
netted a 10-15 cfm boost.

Runner #'s...........flowed @ 28"s
1 186 5 183
2 201 6 200
3 198 7 191
4 200 8 198

Later, Greg(XSR)

91LX-5.0 · Mar 10, 2004

Hey tmoss
I live in St. Louis and I was wondering if when I was ready, how I would go about getting my lower intake ported by you?
Ben

tmoss · Mar 10, 2004

Ben, when your ready you would go to my website ans send me an email from there and we could set up a time for you to drop it off. Cost for yuou is $100 flat as no shipping is involved.

leakyfaucet · Mar 10, 2004

Just another quick question: what gaskets do you use for the ported lower and where do you get them?

best intake manifold for mostly stock 5.0?

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