Are ls2 blocks siamese bore?

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08-10-2015, 02:27 PM

99tramsamc/fia

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Are ls2 blocks siamese bore?

Wondering if all Ls2 block are siamese bore?
Thanks guys

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08-10-2015, 03:52 PM

stevieturbo

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Explain what your definition if siamese bore is ?

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08-10-2015, 04:35 PM

99tramsamc/fia

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No water between cylinders

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08-11-2015, 09:06 AM

99tramsamc/fia

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Is this not siamese? No water between cylinders

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08-11-2015, 11:31 AM

rotary1307cc

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They aren't from what I know. Some have said some of the late 5.3s are, don't know definite though

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08-11-2015, 12:05 PM

speedtigger

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I am working on a new GMPP LS2 block right now and it has no coolant flow between the cylinders. The aluminum casting is siamese. Of course, the liners are not.

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