NinetynineSS

iTrader: (1)

How much hp can a LS6 intake and stock ported TB support on a 346? I'm sure there is some subjectivity to this, but est?? My cam lift is .600 and heads flow 301 at .600, if that is even relevant.

SSdimension

iTrader: (19)

15-20RWHp Dont know cfm of intake but its you can 2.2 hp for every cfm I think. Someone Please correct me if im wrong.

NinetynineSS

iTrader: (1)

Thank you for the reply, but I was leaning more towards how much total engine hp it will support. Like 400, 450, 600 rwhp.

fucter

iTrader: (5)

i for answer, because the FAST stuff is pricey

MonmouthCtyLS7

iTrader: (6)

You see a good 15-20 hp, good mod.

berlin 83

iTrader: (13)

i've seen people make 500rwhp with an ls6

NinetynineSS

iTrader: (1)

That's what I was looking to see, thank you. Anyone else seen 500 or better?

blue98Z

iTrader: (29)

I think mightymouse was doin like 700hp on his. I may be wrong tho. It's been awhile since I read that issue of GMHTP. I personally know of a couple of guys who were making a lil over 500hp with the LS6 and stock ported TB also. So yeah it'll hold.

white mayhem

iTrader: (24)

700 hp is alot! The Fast stuff is pricey but its been proven to do good things. A painted Fast is beautiful under the hood also

NinetynineSS

iTrader: (1)

I agree, but tapped out at the moment, and just assembled the short block yesterday. I'll get it together and see how the tune goes. A neighbor at the shop is heas of R&D at Painless Wiring, and told me a stock LS1 TB flows something like 800 cfm.

cowboysfan

I think 800cfm is about right. I'm making 420rwhp on H/C setup, with 150 shot it should put me around 550 or so.....

SSdimension

iTrader: (19)

I read in a Summit Racing Catalog that ls6 are only meant for 425 hp. Guess not obviously. Just wondering why they would say that...