99Ls1fever

iTrader: (3)

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???

dca1042

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.

99Ls1fever

iTrader: (3)

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

Richard@WCCH

iTrader: (3)

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

ss454327

iTrader: (10)

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

99Ls1fever

iTrader: (3)

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

Richard@WCCH

iTrader: (3)

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

99Ls1fever

iTrader: (3)

Thanks