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LS1 or LS6 Intake

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Old Dec 18, 2013 | 02:02 PM
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Question LS1 or LS6 Intake
I'm new to the whole LS world but eager to learn, but I recently bought a 99 Z28 with quite a few mods. What I want to know is if there is a way for me to look at my intake and tell if it is an LS1 or an LS6 intake. Thanks.
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Old Dec 18, 2013 | 02:28 PM
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The LS1 intake will have a hole for the EGR right behind the throttle body. The LS6 intake would not have that hole there.
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Old Dec 18, 2013 | 02:48 PM
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Thanks. How much would it be worth to change from a LS1 intake to an LS6?
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Old Dec 18, 2013 | 03:46 PM
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Originally Posted by N2Ojunky
Thanks. How much would it be worth to change from a LS1 intake to an LS6?
it will be most noticeable from 5000 up w stock cam and even more noticeable with a good aftermarket cam. its money well spent
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Old Dec 18, 2013 | 10:44 PM
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N20, I may have an LS6 intake I can ship to you for cheap once I am done swapping in the new motor
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Old Dec 18, 2013 | 11:41 PM
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OP, the ls6 intake is a pretty good mod for 98-00 fbodies. You can get them pretty cheap, and will flow better than the ls1 intake. Also, post the part number embossed on the side of the intake to make sure its a ls6 intake. I think there was a slp ls6 intake that also had the egr connection.
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Old Dec 19, 2013 | 12:32 AM
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There is 4-5 different part numbers, but as long as its flat on the bottom then it's a ls6..
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Old Dec 19, 2013 | 06:29 AM
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Originally Posted by z28SSilvest
N20, I may have an LS6 intake I can ship to you for cheap once I am done swapping in the new motor
Cool thanks, I sent you a PM
Where on the intake is the part #?
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Old Dec 19, 2013 | 07:37 AM
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Originally Posted by Zlow28
OP, the ls6 intake is a pretty good mod for 98-00 fbodies. You can get them pretty cheap, and will flow better than the ls1 intake. Also, post the part number embossed on the side of the intake to make sure its a ls6 intake. I think there was a slp ls6 intake that also had the egr connection.
The slp version was a non egrls6 modified w a huge brass connector where the erg goes for connection.
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Old Dec 19, 2013 | 07:40 AM
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Does anyone know the part #'s for the LS6 intakes?
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Old Dec 20, 2013 | 06:54 PM
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Originally Posted by N2Ojunky
Does anyone know the part #'s for the LS6 intakes?
as mentioned before, theres a bunch of different ones. Post the one you have and we can find out.
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Old Dec 20, 2013 | 08:53 PM
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Originally Posted by N2Ojunky
Does anyone know the part #'s for the LS6 intakes?
Don't worry about part numbers, if it flat and not concave at the bottom where it would touch the valley cover then it's a ls6..

Always check the bottom when buying, same applies with women!
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Old Dec 20, 2013 | 09:43 PM
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What about the non-LS6 Vette intakes? Did they not have the EGR hole? How would you tell one apart from a LS6 intake?
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Old Dec 20, 2013 | 09:48 PM
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Originally Posted by t_raven
What about the non-LS6 Vette intakes? Did they not have the EGR hole? How would you tell one apart from a LS6 intake?
The ls1 vette intake doesn't have the egr hole, but it still has the concave at the bottom.

When buying one, always ask to see pics of the bottom. Some people do accidentally buy the vette intakes thinking its a ls6 at first glance..
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Old Dec 20, 2013 | 09:51 PM
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Ls6 far right, ls1 left..


Notice the ls1 has the "v" concave in it in the middle.. It's this way because it had to clear the ls1 coolant lines..
Attached Thumbnails LS1 or LS6 Intake-image-2942284077.jpg   LS1 or LS6 Intake-image-2478994507.jpg  
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