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LS6 intake question

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Old Jul 15, 2008 | 05:58 PM
  #1  
timj008's Avatar
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Default LS6 intake question

I bought a complete motor, how do I know if it is a ls1 or ls6 intake manifold. The casting number was 12561184 on the manifold. Any help would be much appreciated.
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Old Jul 15, 2008 | 06:06 PM
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LS6 intake has a flat bottom...LS1 has curved. Also, MOST LS6 intakes don't have an EGR setup.
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Old Jul 15, 2008 | 07:37 PM
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LS6, that's the PN mine came with from the factory.
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Old Jul 15, 2008 | 07:53 PM
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Send a pic of the bottom as stated ls1 no egr and has a v shape bottom like a boat Ls6 is flat.
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Old Jul 15, 2008 | 08:48 PM
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www.ls1tech.com/forums/showpost.php?p=3064658 Scroll down to LS6....
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Old Jul 15, 2008 | 09:44 PM
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Thanks guys for all the info, it is an LS6 after all.
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