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Generation III Internal Engine
1997-2006 LS1 | LS6
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Old 01-24-2010, 10:12 PM   #1
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Default LS1/LS6 Interference or NON interference?

I thought this would be an easily googled/forum searched question...but I can't find a solid answer.

so are LS1/LS6 Motors Interference (as in timing chain breaks and valves get bent) or non interference (as in timing chain breaks and its no biggie)????!???
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Old 01-24-2010, 10:33 PM   #2
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They're interference fit. If your timing chain breaks, you'd better pray that only the push rods bend.
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Old 01-24-2010, 10:48 PM   #3
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they will get f'd up.
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Old 01-25-2010, 06:31 PM   #4
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Not a problem. Our timing chains don't break.
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Old 05-02-2013, 12:43 AM   #5
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Yes. They do.
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Old 05-02-2013, 12:52 AM   #6
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I went overkill with a Rollmaster double. If it breaks, the whole engine is doomed anyway.

ATI Harmonic Balancer also helps - most of the time timing chains break due to bad harmonics.

And yes, interference.
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Old 05-02-2013, 05:41 PM   #7
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why are you asking?

You have some "timing belt is maintenance" idea? If so you are wrong.
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Old 05-02-2013, 05:41 PM
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