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how much power on stock alum. block

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Old 10-12-2005, 08:09 PM
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Default how much power on stock alum. block

just curious, how much power can be had on a "stock block" assuming forged internals, better fastners, etc.? to restate the question, what will the factory ls1 block its self hold before breaking/failure?

thanks Britton
Old 10-12-2005, 11:14 PM
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uh any one?
Old 10-12-2005, 11:21 PM
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i have personally seen everything from 500 rwhp to 1000++ on a few occasions.. Most people switch to the LQ4 and LQ9 iron blocks though
Old 10-13-2005, 11:26 AM
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any strong aluminum blocks that wont break the bank?
Old 10-13-2005, 02:27 PM
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Originally Posted by THE_SUPRA
any strong aluminum blocks that wont break the bank?
LS2 block is a nice piece and decently priced.
Old 10-14-2005, 01:25 AM
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is $1000 about the going price for an ls2 bare short block?


how much power could an ls2 block see......if built right of course?

what would i need, in theory, to put down over 1,000 wheel hp and still use an aluminum block?
Old 10-14-2005, 01:26 AM
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I plan to. And i think that harlans is. GL


John
Old 10-14-2005, 09:04 AM
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Mine should hopefully do it when done.
Old 10-14-2005, 09:16 AM
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hmmmm... excellent question. I have never heard of a block failure caused solely by power.

I have heard of block failure caused by other components, or bad tuning.
Old 10-14-2005, 09:33 AM
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I have heard and read anywhere from 800 - 1000 horses!
Old 10-14-2005, 10:46 AM
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1,000 RWHP with aluminum block? As far as the structural strength goes?

Motor plates... that's pretty much it.
Old 10-14-2005, 12:06 PM
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I currently make ~900 at the crank.
Old 10-14-2005, 12:17 PM
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does this big horsepower distort the block in any manner? especially in boosted applications.
Old 10-14-2005, 12:42 PM
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Yes, it does. Running solid mounts with that much power puts too much stress on a bad location on the block, so I've read. The really high HP guys who run aluminum have had problems with cracking jackets and distorting bores. The only cure I've read about for this problem is running a motor plate and mid plate setup. A bottom end girdle would no doubt help as well.

Personally, I'm going with the iron block for my FI setup. With motor plates.
Old 10-14-2005, 12:52 PM
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lots of good info, maybe someday i can afford to build a 1000 hp motor
Old 10-14-2005, 02:17 PM
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Just remember to put the money where money needs to go, to get what you want accomplished.

Do the work yourself and you'll save a lot, learn a lot, and have a lot of fun.
Old 10-17-2005, 01:51 PM
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hey, cool stuff!!! thanks for the help guys!!! you can alwasy count on the ls1 tech dudes




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