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Old Jul 8, 2013 | 05:15 PM
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From: Dover De
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Will Stock LS1 heads, have the same valves at 243's(799). I am trying to help a friend out, and he says that they would be interchangable.

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Thank you
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Old Jul 8, 2013 | 09:59 PM
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From: Dover De
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No one knows
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Old Jul 9, 2013 | 12:00 PM
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My Z06 is supposed to have sodium filled valves if I remember right, and my heads have 243 stamped on them. I don't believe LS1s have these.
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Old Jul 9, 2013 | 12:06 PM
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From: Dover De
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Thanks, but are the sizes the same
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