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Lq4 intake vs ls6 intake

This is a discussion on Lq4 intake vs ls6 intake within the External Engine forums, part of the LSx Technical Help Section category; ok iv been looking around a bit and found that the truck intakes make better numbers than the ls6 intake ...

  1. #1
    Member My00Z28's Avatar
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    Lq4 intake vs ls6 intake

    ok iv been looking around a bit and found that the truck intakes make better numbers than the ls6 intake but after searching more people say the intake will not fit under the hood... will the truck intake then fit like the edelbrock intake where you have to cut parts out of the cowl? the reason i ask this is because id rather use the lq4 intake that i already have!

    Thanks

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    Rockin the Ruckus! 02Sweet's Avatar
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    Quote Originally Posted by My00Z28 View Post
    ok iv been looking around a bit and found that the truck intakes make better numbers than the ls6 intake but after searching more people say the intake will not fit under the hood... will the truck intake then fit like the edelbrock intake where you have to cut parts out of the cowl? the reason i ask this is because id rather use the lq4 intake that i already have!

    Thanks
    I always heard the ls6 intake flowed better than the truck. If im wrong someone correct me.

    Yes the edelbrock intake you need to cut parts of the cowl. You can't run stock wipers.

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    I don't know of anyone who managed to get one under the cowl. Regardless, if that intake has the 90mm throttle body opening, then it is a worthwhile upgrade over the LS1 intake, and in some cases better than the LS6.

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    If your using a Cathedral port head the the LS6 is the best Factory intake.
    The Truck intakes may optimize low and mid range torque better but lack the flow on the top end.
    The LS2 intake has a 90mm throttle bore but doesn't flow aswell as the LS6 untill it's been ported.
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    Quote Originally Posted by 9T8W66 View Post
    If your using a Cathedral port head the the LS6 is the best Factory intake.
    The Truck intakes may optimize low and mid range torque better but lack the flow on the top end.
    The LS2 intake has a 90mm throttle bore but doesn't flow aswell as the LS6 untill it's been ported.
    im going to use the heads off the lq4 i have and p/p them. they should be the exact same as ls6 heads with bigger combustion chambers ill probably run -8cc pistons for a 10.5ish compression.... but SH*T it would of been really nice to just bolt the lq4 intake on and call it good im not trying to go "too" cheap but im on a budget! and when it comes to an ls6 intake i don't really want a plastic one im building the engine to drive it N/A for a while and in the future of a turbo or supercharger and i feel an aluminum intake or something would be better for that!?

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    Rockin the Ruckus! 02Sweet's Avatar
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    Quote Originally Posted by My00Z28 View Post
    im going to use the heads off the lq4 i have and p/p them. they should be the exact same as ls6 heads with bigger combustion chambers ill probably run -8cc pistons for a 10.5ish compression.... but SH*T it would of been really nice to just bolt the lq4 intake on and call it good im not trying to go "too" cheap but im on a budget! and when it comes to an ls6 intake i don't really want a plastic one im building the engine to drive it N/A for a while and in the future of a turbo or supercharger and i feel an aluminum intake or something would be better for that!?
    I did see a lot of people complaining about the truck intakes ability to breath in the higher RPM range. The ls6 intake is fine on boost and will run much better n/a for you know.

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    Member My00Z28's Avatar
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    Quote Originally Posted by 02Sweet View Post
    I did see a lot of people complaining about the truck intakes ability to breath in the higher RPM range. The ls6 intake is fine on boost and will run much better n/a for you know.
    Dont you have that edelbrock intake on your car?

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    Rockin the Ruckus! 02Sweet's Avatar
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    Quote Originally Posted by My00Z28 View Post
    Dont you have that edelbrock intake on your car?

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    Quote Originally Posted by 02Sweet View Post
    see i was looking in to it but i really like the look of the ls intakes.... i know you got to cut away at sh*t but thats not a big deal to me, i saw your posting of installing it! how do u like it? was it worth the money&time? do u have any other pictures of it?

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    Moderator Firebirdjones's Avatar
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    There was a mag that did a dyno test on this stuff back around 02-03???

    They found the big funky looking truck intake was the real sleeper of the bunch down low and throughout the mid range.
    But like the others have said, it fell off above 5500 where the LS6 shined.

    Overall though, I remember reading good reviews from the magazine on how the truck intake performed. I'll be using one on my 6.0 swap into an older truck, plenty of room and I'll need the low end grunt it provides.

    On an Fbody I wouldn't bother, but I'm not one to cut things up either. I'd go LS6 or FAST depending on your goals.

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    Rockin the Ruckus! 02Sweet's Avatar
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    Quote Originally Posted by My00Z28 View Post
    see i was looking in to it but i really like the look of the ls intakes.... i know you got to cut away at sh*t but thats not a big deal to me, i saw your posting of installing it! how do u like it? was it worth the money&time? do u have any other pictures of it?







    Hope those help you make up your mind about cutting

    The car never ran right since I did the install but I also did A LOT of other things with it. Before I could even test the intake I blew my converter and was down for most of the year. This spring I should have good dyno numbers and track times.

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    holy cut the cowl batman

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    Quote Originally Posted by sjsingle1 View Post
    holy cut the cowl batman
    it's not that bad... i've seen it in person...

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    Truck intake flows better than the ls1, but not ls6 intake

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    Quote Originally Posted by 02Sweet View Post


    Hope those help you make up your mind about cutting

    The car never ran right since I did the install but I also did A LOT of other things with it. Before I could even test the intake I blew my converter and was down for most of the year. This spring I should have good dyno numbers and track times.
    ok now the intake LOOKS SWEET but i think i like the look of the ls6 more i guess im going to try and find a cheap used one for now and upgrade it later when i decide to boost!!!

  16. #16
    Moderator Firebirdjones's Avatar
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    The LS6 is actually a popular choice for boost, no need to upgrade.

    It's not like the 2 piece design of the FAST where boost applications have cause for concern.

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