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Generation III Internal Engine 1997-2006 LS1 | LS6
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can a 5.3 iron block be bored to 5.7?

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Old 05-11-2009, 07:00 PM
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Default can a 5.3 iron block be bored to 5.7?
can a 5.3 iron block be bored to 5.7 and will it be safe and strong?
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Old 05-11-2009, 07:08 PM
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Yes it can, and yes it will be.
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Old 05-11-2009, 08:55 PM
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Originally Posted by LS1Formulation
Yes it can, and yes it will be.
X2.........WERD......Stroke is the same as LS1.
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Old 05-11-2009, 09:23 PM
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I would have it sonic tested just to be sure, .150" or so overbore is a "Metric Crap Ton" of cylinder bore.

I know its been done many times, but I would still check.
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Old 05-11-2009, 10:11 PM
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Yep. I have one if you want a 5.3 to build.
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Old 05-11-2009, 10:50 PM
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thanks for the input guys i have one layin around was just wondering if it would be worth it
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Old 05-12-2009, 12:24 AM
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I've done several but .120 or .060 a side is a lot but never had an issue so far on many turbo cars.
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