LS6 heads HP limits?

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05-08-2010, 09:59 AM

mikey1107

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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

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05-08-2010, 10:35 AM

alamantia

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

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05-08-2010, 10:41 AM

mikey1107

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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.

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05-14-2010, 02:07 PM

mikey1107

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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?

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05-14-2010, 02:30 PM

mtuggle86

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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

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05-14-2010, 02:59 PM

427LS7HCI

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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

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05-14-2010, 03:19 PM

mtuggle86

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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; 05-17-2010 at 01:47 PM.

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LS6 heads HP limits?

LS6 heads HP limits?

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