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Question: LS3 valves

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Old Jun 1, 2012 | 11:10 PM
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Default Question: LS3 valves
Does the LS3 have sodium filled exhaust valves?
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Old Jun 1, 2012 | 11:23 PM
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No, LS3 uses solid stem exhaust valves.
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Old Jun 1, 2012 | 11:30 PM
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Originally Posted by Cruisers
Does the LS3 have sodium filled exhaust valves?

No.
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Old Jun 1, 2012 | 11:43 PM
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Originally Posted by cartwheel
No, LS3 uses solid stem exhaust valves.

IIRC they are non-sodium filled, hollow stem.
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Old Jun 1, 2012 | 11:50 PM
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Originally Posted by OnPoint
IIRC they are non-sodium filled, hollow stem.
Look in GM Performance catalog it clearly states the LS3 heads uses a solid exhaust valve. The intake is a hollow stem but that is not what OP was asking.
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Old Jun 1, 2012 | 11:55 PM
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Originally Posted by cartwheel
Look in GM Performance catalog it clearly states the LS3 heads uses a solid exhaust valve. The intake is a hollow stem but that is not what OP was asking.
Ahh. Then I stand corrected. Thanks for the heads-up.
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