Looking for LQ9 Heads Flow Numbers

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Aug 20, 2008 | 03:56 PM

99Ls1fever

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From: Eaton, Colorado

Looking for LQ9 Heads Flow Numbers

I have been looking every where for stock LQ9 flow numbers and also Ported LQ9 head flow numbers can anyone help... I know that the 317 are the same cast as the LS6 heads but with bigger Combustion chambers so do they flow different? I want to port and polish LQ9 heads for my 408 stroker but want them to flow crazy numbers is this even possiable???

Aug 22, 2008 | 06:06 AM

dca1042

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From: ballarat.vic.australia

go to stan weiss web site he has all the data you will ever require and more.
cheers dave.

vn commodore,iron 427,dd,waiting on street warrior.

Oct 20, 2008 | 01:06 PM

99Ls1fever

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From: Eaton, Colorado

went there, he just talks about porting jobs....

Oct 20, 2008 | 09:44 PM

Richard@WCCH

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From: Van Nuys, CA

I have our ported flow data posted here: Stage 2 CNC Ported6.0l 317 heads.
I'll dig up my stock port data tomorrow and post it up.

Richard

Oct 21, 2008 | 12:13 AM

ss454327

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From: Scott, AR

https://www.patriot-performance.com/...&cat=35&page=1

Oct 21, 2008 | 09:55 AM

99Ls1fever

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From: Eaton, Colorado

Yeah, again though I just wanted to see stock flow numbers, I am aware there are other cylinder head port jobs out there, it would be nice just to know what you are starting with

Oct 21, 2008 | 02:33 PM

Richard@WCCH

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From: Van Nuys, CA

I must have miss understood you. In your OP you ask for stock and ported flow data.

Here's the stock 317 port:
Lift......Int...........Exh
.100" ..64.8........53.3
.200"..142.1.......111.6
.300"..204.3.......146.8
.400"..233.5.......164.9
.500"..250.0.......174.2
.550"..251.2.......181.2
.600"..253.0.......184.4

Test bore = 4.030"
Exhaust tested without pipe.

Richard