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Question regarding egr and fast intake

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Old Dec 23, 2019 | 11:23 AM
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Default Question regarding egr and fast intake

I'm required to keep egr but let's say I want to build a 408 or 427 with ls3 heads can I use this intake it appears to have an egr hookup? https://www.summitracing.com/parts/fst-146302b
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Old Dec 23, 2019 | 12:10 PM
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The intake in your link shown below is for LS1/LS6 cathedral style cylinder heads and will not match to LS3 rectangular heads heads correctly.




The one below is what you want for LS3 heads. Note the different part numbers.

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Old Dec 23, 2019 | 12:18 PM
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Any manifold for rectangular port heads will not accommodate EGR since no Gen IV engine came with it.
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Old Dec 23, 2019 | 12:19 PM
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Originally Posted by 99 Black Bird T/A
The intake in your link shown below is for LS1/LS6 cathedral style cylinder heads and will not match to LS3 rectangular heads heads correctly.




The one below is what you want for LS3 heads. Note the different part numbers.
It looks like the port on it can be used for egr correct?
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Old Dec 23, 2019 | 12:23 PM
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Do they check for EGR function or just make sure it's there?
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Old Dec 23, 2019 | 12:25 PM
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Originally Posted by G Atsma
Do they check for EGR function or just make sure it's there?
Both actually
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Old Dec 23, 2019 | 01:36 PM
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Originally Posted by EmeraldFlame
It looks like the port on it can be used for egr correct?
There's a port on top that could be used for EGR. We used that top port for the MAP sensor on my LS3 headed 416.



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Old Dec 23, 2019 | 03:20 PM
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Look at the emissions sticker on the drivers side shock tower. Mine is a 2000 originally with an EGR. The emissions sticker doesn't have the egr listed. Delete the code in the computer and the inspector will never know.
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