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how much boost will an ls2 block hold ?

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Old 05-03-2012, 09:15 PM
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Default how much boost will an ls2 block hold ?
how much boost can i let my ls2 eat? fully forged, the block is the onyl week point lol ? 20lbs? 25lbs ? 30lbs?
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Old 05-03-2012, 09:16 PM
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Only one way to find out
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Old 05-03-2012, 09:17 PM
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I've been looking into this more lately, and they are tougher than people expect. 20psi isn't an issue. Not sure if anybody has approached the 30 range yet...
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Old 05-04-2012, 02:00 AM
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Old 05-04-2012, 06:49 AM
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I say 20-25 should not be a problem but who knows
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Old 05-04-2012, 08:16 AM
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I will be giving mine 18psi or so. Don't want to push it too far in stock form.
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Old 05-04-2012, 06:19 PM
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just a quiston, what CR you plan on running? 9:1 or lower?
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Old 05-04-2012, 09:11 PM
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Originally Posted by sand man
just a quiston, what CR you plan on running? 9:1 or lower?
Me? I'll be in the 9.4-9.5 range.
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Old 05-04-2012, 10:11 PM
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scattered a ls2 at 5800 rpms, broke 2 rods but i personally think there was an issue with the shortblock before i got my hands on it
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Old 05-04-2012, 10:13 PM
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my compression not sure honestly,

i have -11 cc dished wiseco pistons, with 68cc chamber ls3 heads . and headgasket thickness not sure yet.
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