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Can you SAFELY boost an L92?

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Old Sep 6, 2008 | 11:03 PM
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Default Can you SAFELY boost an L92?

just curious, might be making a deal with someone to get an L92 long block.. It needs a piston so ill probably end up getting a forged rotating assembly for it, which would prob. make it a 418ci.. Would probably temporarly run the L92 heads until i swapped to an aftermarket head... what do you guys think? Can you run a boosted set up? Shooting for something near 800+/- rwhp.

and please, lets keep this on topic with an L92 6.2 L and not an 370 iron block or what not.. Thank you!
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Old Sep 7, 2008 | 04:14 AM
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i skimmed through 11 pages to see if there were any threads on boosted l92s.. nothing.. why is that?
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Old Sep 7, 2008 | 07:06 AM
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Probably because an L92 is relatively new and isnt available in a performance vehicle. Your best comparison would be an LS3 because thats basically what it is.
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Old Sep 7, 2008 | 07:25 AM
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ive been thinking of building a ls3/l92 my self
its got just the right amount of CID i want to run and good flowing heads and if you forge it what the big deal
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Old Sep 7, 2008 | 10:01 AM
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I had heard that the quality of the LS3 was not as good as the the lS2 block (some are ok, some are not) for whatever reason so was advised to stay away at least on high hp applications. I would think N/A would be fine. With the ZR1 using this block in 2009, I would assume any deficiencies would be corrected. I have also seen were they are incorporating other improvements as well. I would make sure you get a 2009.
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Old Sep 7, 2008 | 04:28 PM
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so your 6.2L Escalade *block* is technically the same thing as an LS3 block?? how about the crank/rods? im guessing pistons are prob different
edit- forgot that the heads are pretty damn similar as well..
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Old Sep 7, 2008 | 05:02 PM
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The heads are the same. The valves are hollow though. I would be surprised if they did not use the same exact rotating assembly except pistons.
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Old Sep 7, 2008 | 06:43 PM
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thats what i figured.

anyone out there have first hand experience??
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Old Sep 8, 2008 | 02:40 PM
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ttt... is there anybody OUT THERE..... (pink floyd )

i have found some more information...

some guy ended up building a forged ls3 after busting 2 sets of aftermarket pistons from detonation.. but some how he thinks its the pistons fault
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Old Sep 8, 2008 | 02:43 PM
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There are a few blown LS3's over on corvetteforum.com.
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Old Sep 9, 2008 | 09:20 PM
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went over there and couldnt find much either....

Heres a question:
for a FI set up would you try and keep the stock ci (bore/stroke) rather then stroking it out to something like a 41x ci motor??
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