LS6 heads HP limits?

Reply Subscribe

Thread Tools

Search this Thread

May 8, 2010 | 09:59 AM

mikey1107

Thread Starter

Staging Lane

iTrader: (10)

Joined: Oct 2004

Posts: 68

Likes: 1

From: Oklahoma

LS6 heads HP limits?

What are the horsepower limits of a stock LS6 head (stock size valves no porting/milling,etc...) on a stock bottom end LS1,230ish cam...

Anyone using them into the 450hp range? have dyno numbers/et's?

Thanks

May 8, 2010 | 10:35 AM

alamantia

TECH Fanatic

iTrader: (10)

Joined: Apr 2006

Posts: 1,323

Likes: 1

From: NJ

https://ls1tech.com/forums/generatio...224-111-a.html

May 8, 2010 | 10:41 AM

mikey1107

Thread Starter

Staging Lane

iTrader: (10)

Joined: Oct 2004

Posts: 68

Likes: 1

From: Oklahoma

Quote:

Originally Posted by alamantia

https://ls1tech.com/forums/generatio...224-111-a.html

Thanks...some good info but not really what I am looking for.

I am looking for someone who is using this setup or something similar and get actual dyno results or ET's.

May 14, 2010 | 02:07 PM

mikey1107

Thread Starter

Staging Lane

iTrader: (10)

Joined: Oct 2004

Posts: 68

Likes: 1

From: Oklahoma

So,no one has used stock LS6 heads and tried to see what the power limits were? What are the 10 second cam only guys using?

May 14, 2010 | 02:30 PM

mtuggle86

TECH Enthusiast

iTrader: (7)

Joined: Jul 2008

Posts: 548

Likes: 0

Quote:

Originally Posted by mikey1107

So,no one has used stock LS6 heads and tried to see what the power limits were? What are the 10 second cam only guys using?

I have stock Ls6 castings on my car I would say would around 475rwhp would be there limit N/A stock cubes maybe a little less

With a 230ish cam I would say its more like 450rwhp or less

May 14, 2010 | 02:59 PM

427LS7HCI

Launching!

Joined: May 2010

Posts: 274

Likes: 1

Quote:

Originally Posted by mtuggle86

I have stock Ls6 castings on my car I would say would around 475rwhp would be there limit N/A stock cubes maybe a little less

With a 230ish cam I would say its more like 450rwhp or less

there is no way you are getting 475rwhp with stock LS6 heads.
Ported LS6 heads - Cartek has gone over 500rwhp

May 14, 2010 | 03:19 PM

mtuggle86

TECH Enthusiast

iTrader: (7)

Joined: Jul 2008

Posts: 548

Likes: 0

Quote:

Originally Posted by 427LS7HCI

there is no way you are getting 475rwhp with stock LS6 heads.
Ported LS6 heads - Cartek has gone over 500rwhp

Maybe not I was taking a guess for the guy but they can get you close to that Im sure with a really good setup. maybe 450-460rwhp range with a large cam fast 90 and a good tune. And thats why I said maybe less.

Last edited by mtuggle86; May 17, 2010 at 01:47 PM.