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Flow numbers for "Ported" LS7 intakes

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Old Sep 27, 2008 | 04:25 PM
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Default Flow numbers for "Ported" LS7 intakes
Does anyone know how much these various "Ported" LS7 intakes flow?

With "modified" LS7 heads flowing 400+ cfm can "porting" a factory LS7 intake (flow 330 cfm from GM) make up this 70+ cfm difference to any appreciable extent?
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Old Oct 3, 2008 | 01:03 PM
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Does anyone think there would be a market for CNC ported LS7 intakes?

In some ways I think a good CNC program for this could standardize any variation here. (Then flow numbers could be widely published to make head selection a little easier in theory)
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Old Oct 3, 2008 | 03:32 PM
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i know that they make the portes ls7's flow about as good as the beck sheetmetals, but i dont know the exact numbers.
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Old Oct 3, 2008 | 07:11 PM
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Originally Posted by firefighting1101
i know that they make the portes ls7's flow about as good as the beck sheetmetals, but i dont know the exact numbers.
Are you sure? I thought the best flow an LS7 ported intake on top of 400 cfm LS7 ported heads was around 350cfm.

Which wastes about 50 cfm's that the heads can flow.

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Old Oct 9, 2008 | 06:45 PM
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Originally Posted by LS6427
Are you sure? I thought the best flow an LS7 ported intake on top of 400 cfm LS7 ported heads was around 350cfm.

Which wastes about 50 cfm's that the heads can flow.

Flow DOES NOT make power, remember this.
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Old Oct 9, 2008 | 08:21 PM
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Originally Posted by Haans249
Flow DOES NOT make power, remember this.
I know there is more to your statement enlighten me
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Old Oct 11, 2008 | 11:52 PM
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Originally Posted by OUTLAWZ RACING
I know there is more to your statement enlighten me
Lol, you should read around some more! sheesh!
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Old Oct 13, 2008 | 10:02 AM
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Any intake manifold you bolt to a set of heads will make the flow numbers go down. When you increase the length of the runner that is what happens.
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Old Oct 13, 2008 | 04:44 PM
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Originally Posted by ViperKlr1
Does anyone know how much these various "Ported" LS7 intakes flow?

With "modified" LS7 heads flowing 400+ cfm can "porting" a factory LS7 intake (flow 330 cfm from GM) make up this 70+ cfm difference to any appreciable extent?
it still amazes me that we buy and talk about flow numbers as its the most important feature of a head or intake

Lets not get sucked in on flow number's-thats how people sell parts and how head people sell heads-

Thanks
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