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98 heads (flow)

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Old 01-07-2007, 03:20 PM
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Default 98 heads (flow)
to prove to someone

are not the 98 (806 casting) heads the worse flowing of the ls1 car castings?

241, 853s and others?
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Old 01-07-2007, 03:36 PM
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stock, unported
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Old 01-07-2007, 04:16 PM
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Default 806 heads
Originally Posted by Havok2
to prove to someone

are not the 98 (806 casting) heads the worse flowing of the ls1 car castings?

241, 853s and others?
unported yes they are the worse flowing heads out ther. ported is a nother story.
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Old 01-07-2007, 04:25 PM
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any one elses opinion?
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Old 01-07-2007, 05:59 PM
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My 98's flowed just as much as 6.0l porting done by the same porter. Something around 320 @600
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Old 01-07-2007, 06:38 PM
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Originally Posted by 1fstGM
My 98's flowed just as much as 6.0l porting done by the same porter. Something around 320 @600
wtf? how is that possible... damn if that were true why would anyone get aftermarket heads... I dont think even the AFRs flow that well

If its true how much was the porting and who did it?
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Old 01-07-2007, 06:58 PM
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Yes stock for stock, most shops say they flow about 5 to 10 cfm less than the later 241 castings.
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