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limits of the ls6 block

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Old Jan 15, 2012 | 12:51 PM
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Default limits of the ls6 block

Okay a local performance mechanic is trying to sell me a refreshed race engine. It is an ls6 that went a 9.6 (high Colorado elevation) in a quarter mile in a vette. It is $8,000 for installing and tune. It will be re ringed and new bearings. What do you guys think? I'm still wanting an ls3 I think...
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Old Jan 15, 2012 | 01:34 PM
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1st: Why are you posting in this section?

2nd: It's going to take a lot more information to give you any advice on that decision.
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Old Jan 15, 2012 | 01:39 PM
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Sorry should have been more informative. He will be installing the current procharger d1 on it. Thats why i am posting here. I thought the ls6 block were weaker. But to what extent?
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Old Jan 15, 2012 | 02:00 PM
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All forged forged parts...
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Old Jan 15, 2012 | 02:02 PM
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All forged parts...
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Old Jan 15, 2012 | 03:07 PM
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Anyone know of anyone having a reliability issue with the ls6 block?
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Old Jan 15, 2012 | 03:26 PM
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Whats your hp goal? I dont think that D1 can push the ls6 block to its limit......
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Old Jan 15, 2012 | 03:34 PM
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It will have the same reliability issues of any aluminum.

Harlan went 8.3 with an LS6 block back in 2003 or 2004.

I made 867rwhp with one, only went 9.40 I didn't want to go faster than the guys on here and give them a complex.
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Old Jan 15, 2012 | 03:58 PM
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Originally Posted by Pro Stock John

I made 867rwhp with one, only went 9.40 I didn't want to go faster than the guys on here and give them a complex.
lol!!
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Old Jan 15, 2012 | 05:26 PM
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Originally Posted by T/AWS6969
Okay a local performance mechanic is trying to sell me a refreshed race engine. It is an ls6 that went a 9.6 (high Colorado elevation) in a quarter mile in a vette. It is $8,000 for installing and tune. It will be re ringed and new bearings. What do you guys think? I'm still wanting an ls3 I think...
Ls6 block can take more power than what 95% here can use.


With a build list of "all forged parts", I would pass. There is way too much detail there to make an educated decision...
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Old Jan 15, 2012 | 05:42 PM
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Thanks guys.. i will be happy if i have 700-750RWH . This will mainly be a street machine anyway.
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Old Jan 15, 2012 | 05:54 PM
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Originally Posted by T/AWS6969
Thanks guys.. i will be happy if i have 700-750RWH . This will mainly be a street machine anyway.
That's a walk in the park for a correctly tuned LS6 block.
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Old Jan 15, 2012 | 07:04 PM
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Thanks guys....
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