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Differences in Vortecs and LS1s?

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Old Aug 5, 2007 | 12:59 AM
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Default Differences in Vortecs and LS1s?

What is different about the Vortecs like the 5.3 in my moms Avalanche for example, and the LS1 in my 02 SS?

Obviously the Displacment, and the Intake. But will any of the parts interchange?
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Old Aug 5, 2007 | 01:41 AM
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I think the heads are different too.
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Old Aug 5, 2007 | 09:08 AM
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The modern 5.3s are basicly the same architecture as an LS1, but they are Iron block (mostly) and have a different bore. If you bore out a 5.3 to 5.7, which is no biggie, you basicly have an Iron LS1. Lots of people use the 5.3 heads as a mild upgrade.

This might be better in the newbie tech or gen III forums though...
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Old Aug 7, 2007 | 08:40 AM
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Moved from advanced tech section.
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Old Aug 7, 2007 | 05:09 PM
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a lot of the parts do interchange in both engines .
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Old Aug 9, 2007 | 11:36 PM
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Originally Posted by snake charmer
a lot of the parts do interchange in both engines .
Is there a list anywhere of the ones that dont and why? That would be very helpful...
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