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Old Oct 10, 2007 | 09:52 PM
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same flow right? ls1 head gaskets aren't blocking any coolant are they?
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Old Oct 10, 2007 | 10:21 PM
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are you asking about coolant flow or air flow? The heads will bolt up with no problem.
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Old Oct 10, 2007 | 10:31 PM
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coolant flow, like are the gaskets the same?
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Old Oct 11, 2007 | 04:42 AM
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i believe the difference is the porting and the Valves.i know the 5.3 heads from the trucks will bolt up as well I'm looking at CNC LS6 heads this winter and everywhere i've looked says there is NO PROBLEM with that~Cole~
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Old Oct 11, 2007 | 07:41 AM
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They are the same, you will be fine.
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