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Generation III Internal Engine 1997-2006 LS1 | LS6
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6.0 liter block

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Old 03-01-2007, 11:10 PM
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Default 6.0 liter block
Just a little curious since I've never seen it anywhere but how far can the 6.0 be bored,both for the street and track max.I'm thinking 60 over for the street.Don't know what to think for the track?Help me out guys.Thanks Tom
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Old 03-02-2007, 08:57 AM
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Just about all can go .030" over, most can go 0.50", many can go 0.060" over, and few can go 0.080" over. For the 0.060" and 0.080" overbores, a sonic test is required to make sure the block can it.

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Old 03-02-2007, 10:51 AM
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Thanks for the info-Tom
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Old 03-02-2007, 01:32 PM
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You're talking about an iron block, right? A 6.0 LS2 will definitely not be able to take a bore that large.
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Old 03-03-2007, 06:13 PM
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I figured .030 overbore is what most people go but was curious how far one can go.
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Old 03-03-2007, 06:17 PM
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.060 safely with a sonic test.
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