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LS3 blocks...

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Old Jul 16, 2007 | 05:14 PM
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Default LS3 blocks...

does anyone sell them yet?
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Old Jul 16, 2007 | 08:33 PM
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Lets see some stock LS3 shortblock prices.
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Old Jul 16, 2007 | 08:47 PM
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I just want to have the block I can put the guts in it.
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Old Jul 16, 2007 | 08:59 PM
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The LS3 and the L92 use the same block. Aluminum 4.065" Bore.
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Old Jul 16, 2007 | 09:37 PM
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Can't wait to see an LS3 block with everything done to it. h/c/exhaust and all boltons with a nasty tune. 530 + rwhp should be expected. How about a forged internal ls3 setup for a procharger or a turbo, maybe twin turbos ?? The possibilities are endless.
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Old Jul 16, 2007 | 09:45 PM
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Originally Posted by drain89
The LS3 and the L92 use the same block. Aluminum 4.065" Bore.
I thought the L92 block was iron.
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Old Jul 16, 2007 | 11:08 PM
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Originally Posted by 1ORANGEWS6
I thought the L92 block was iron.
I have read some where that the LS3 is an aluminium L92 even theo the L92 is iron... Same mold.
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Old Jul 17, 2007 | 12:03 AM
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Yes, damnit, you read that in the big thread that LG broke. Somebody said it was iron but it is not. I knew it would **** up 1000 people.
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Old Jul 17, 2007 | 12:03 AM
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Originally Posted by Gordon0652
I have read some where that the LS3 is an aluminium L92 even theo the L92 is iron... Same mold.
THe L92 is an aluminum block TSP has one and Scoggins Dickey sells the bare block also.

http://www.texas-speed.com/shop/item...id=686&catid=3
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Old Jul 17, 2007 | 12:43 AM
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L92 block = aluminum
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Old Jul 17, 2007 | 01:07 PM
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Originally Posted by drain89
The LS3 and the L92 use the same block. Aluminum 4.065" Bore.
According to the Sept Chevy High Performance magazine about the L92 block in the new LS3;

"Through extensive R&D, GM powertrain has completely gone through the block and strengthened the bulkheads by 20% and will use them in the new truck line too.....the Vette and the trucks will feature identical part nunbers for their latest foundation".
That's good news for the high horsepower guys using this block and may make the current L92 block less desirable.
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Old Jul 17, 2007 | 02:15 PM
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Originally Posted by RWC
That's good news for the high horsepower guys using this block and may make the current L92 block less desirable.
That would be nice! Who sells the L92 block other than Scoggins.
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Old Jul 18, 2007 | 03:26 AM
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Originally Posted by RWC
According to the Sept Chevy High Performance magazine about the L92 block in the new LS3;
"Through extensive R&D, GM powertrain has completely gone through the block and strengthened the bulkheads by 20% and will use them in the new truck line too.....the Vette and the trucks will feature identical part nunbers for their latest foundation".
That's good news for the high horsepower guys using this block and may make the current L92 block less desirable.
'the Vette and the trucks will feature identical part numbers for their latest foundation,' aka, L92 in Trucks and LS3 in Vettes are same block. 376 CI = 4.065" bore x 3.622" stroke
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Old Jul 18, 2007 | 07:39 AM
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is that whats supposed to be coming in the new camaros??
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Old Jul 18, 2007 | 08:27 AM
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^^^ i thought the ls2 was gonna be in them, hopefully the ls3 will now
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Old Jul 18, 2007 | 08:59 AM
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The LS2 is going to be ancient history by the time the 5th gen Camaro gets built .. it is in the concept car because that was the engine that was available at the time the concept car was put together ..
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Old Jul 18, 2007 | 09:16 AM
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Originally Posted by 1ORANGEWS6
does anyone sell them yet?

They are and have been available for quite a while now...page 223 of the 2007 GM Performance Parts catalog..the part number is 12584727.
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Old Jul 18, 2007 | 11:57 AM
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Originally Posted by 1ORANGEWS6
does anyone sell them yet?
Originally Posted by slt200mph
They are and have been available for quite a while now...page 223 of the 2007 GM Performance Parts catalog..the part number is 12584727.
Isn't 12584727 the original L92? I think 1ORANGEWS6 means the new LS3 block which is "improved" from the old L92 block. It looks like the stronger LS3 block will be in all 08 6.2L's.
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Old Jul 18, 2007 | 12:45 PM
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Originally Posted by RWC
Isn't 12584727 the original L92? I think 1ORANGEWS6 means the new LS3 block which is "improved" from the old L92 block. It looks like the stronger LS3 block will be in all 08 6.2L's.

As mentioned above the Vettes and trucks will have the same block ..
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Old Jul 18, 2007 | 01:26 PM
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Yep, I recon the "new" truck block is the L92 as opposed to the old LS2 style.
But hey the intake changed a little over the L76 so you never know.
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