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Generation III Internal Engine 1997-2006 LS1 | LS6
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factory piston to wall clearance?

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Old 05-14-2007 | 06:17 AM
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Default factory piston to wall clearance?
Anyone have the piston to wall specs on a stock ls1 motor? Is it .002-.003?
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Old 05-14-2007 | 06:25 AM
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I'm not 100% sure but IIRC it is .009 + or so (therefore piston slap)
Last edited by PREDATOR-Z; 05-14-2007 at 07:01 AM.
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Old 05-14-2007 | 08:04 PM
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.009 sounds tight to me even with cast pistons, could this be true????
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Old 05-15-2007 | 12:45 AM
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From what I could gather it is a range from .009 to .012 on average due to the method GM is using to build those blocks.
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