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LQ9 = WHich LS

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Old 03-18-2011, 01:43 AM
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Default LQ9 = WHich LS

Hey, I just bought a LQ9 motor, and I read on all these sites that the parts on these motors and LS motors are interchangable. What I'm interested in is which LS motor is the LQ9 equivilent to, and the part I'm most interested in is whether the intakes are interchangable on them.
Old 03-18-2011, 08:45 AM
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There is no LS equivalent to the LQ9 because the LQ9 is a 6.0L Cast Block Truck/SUV Engine.

The intakes are interchangeable though.....

Last edited by Tim94gt; 03-18-2011 at 10:34 AM.
Old 03-18-2011, 09:10 AM
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The intakes are definately interchangable...
Old 03-18-2011, 12:13 PM
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Pretty much everything is interchangeable within the Gen III family which includes LS1/6 LQ4 and the 5.3 LM7 L33 the 4.8 LR4 etc..... There are many others but this off the top of my head...
Old 03-18-2011, 01:26 PM
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I know that there not "equivilent", what was was wondering was which intakes are equivelent where i could replace the one on the LQ9 with. ALso what other parts are interchangable and with what LS motor are they? (LS1? LS2? LS6?)
Old 03-19-2011, 08:24 AM
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LIKE I SAID ALMOST EVERY PART IS INTERCHANGEABLE FROM ANY OTHER GEN III ENGINE. HERE IS A LIST OF OTHER GEN III ENGINES AND THE VEHICLES YOU FIND THEM IN >>>>http://www.trifive.com/forums/showthread.php?t=26648 NOT SURE HOW MUCH SIMPLER I CAN SAY THIS???

The stuff you have to ask about is like if you use a vette pulley you have to use all the vette accessory stuff to make it line up because the offset from the crank is different. Truck intakes are great but they are too tall to fit under an f-body hood etc...

Last edited by SOMbitch; 03-19-2011 at 08:50 AM.
Old 03-19-2011, 08:36 AM
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Get some l92 heads and a ls3 intake and throw a cam in it and call it good
Old 03-19-2011, 10:17 AM
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Originally Posted by babbage1109
Get some l92 heads and a ls3 intake and throw a cam in it and call it good
^^^^ a lot of gen IV stuff will work too. I have a gen IV shortblock with gen III heads & intake....
Old 03-23-2011, 06:50 PM
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Redboy im currently building an LQ9 and have done alot of parts interchange with and for different applications. Right now ive got one going in a 75 vette. Depending what you are putting it in will change things considerably but my LQ9 fits under the hood of the vette with ALL OF THE TRUCK ACCESSORIES IN PLACE. Got any questions just ask
Old 03-23-2011, 11:42 PM
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Well room is not the problem at all lol.. I'm putting it into my '84 Silverado and just don't like the way the vortec intake looks. I was wondering does any LS intake interchange with them, cause I see everyone doing the LS6 intakes, and was just wondering if thats because its a bigger HP improvement??
Old 03-24-2011, 12:27 AM
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Originally Posted by Redboy4457
Well room is not the problem at all lol.. I'm putting it into my '84 Silverado and just don't like the way the vortec intake looks. I was wondering does any LS intake interchange with them, cause I see everyone doing the LS6 intakes, and was just wondering if thats because its a bigger HP improvement??
i got a LQ9 with 243 (ls6 heads) with a ls6 intake on mine and it makes great power... the ls6 intake is the best stock cathedral port intake you can buy for the power and money
Old 04-05-2011, 09:36 PM
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What does it take to fit an LS2, or LS1, or LS3 intake onto my LQ9?? Do I need new fuel rails and injectors??
Old 04-06-2011, 09:10 AM
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Originally Posted by Redboy4457
What does it take to fit an LS2, or LS1, or LS3 intake onto my LQ9?? Do I need new fuel rails and injectors??
An LS3 intake will require different heads.

An LS1/LS6/LS2 intake will bolt right on, then you will need fuel rails/injectors/throttle body to match the intake you choose.

You MAY have to change the coolant tubes and valley cover (for PCV) below the intake depending on which manifold you choose.
Old 04-06-2011, 05:38 PM
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Is the only difference between LS1 LS2 and LS6 intakes just that the LS6 intakes flow better?? Im on a really tight budget build and would like to upgrade intake but don't want to spend the 400 for LS6 ones..
Old 04-06-2011, 06:29 PM
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The truck intakes are great if they will fit under the hood of what you are putting it in....
Old 04-06-2011, 08:00 PM
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I like the way the Corvette engine covers look, and think those would look awesome with the orange color of the truck.. Would those work with the truck intakes, and if not are there any other covers out there that look good besides the vortex ones. I'm not the biggest fan of those.
Old 11-10-2011, 10:57 PM
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The TBSS's and '07 up 5.3L p'ups use the same truck intake AND with 90mm throttle bodies. This truck intake has been dynoed elsewhere and has shown to make more power across curve than an LS6 intake. The truck intake is ugly but you can use the engine cover from a TBSS and even paint it.
Old 11-11-2011, 03:56 AM
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Originally Posted by babbage1109
Get some l92 heads and a ls3 intake and throw a cam in it and call it good
Agreed

Also it has always been my understanding that the LQ9 was in the LS1 family
Old 11-11-2011, 05:10 AM
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Originally Posted by SSLSXLQ9L92
Agreed

Also it has always been my understanding that the LQ9 was in the LS1 family
It's not LS1, LS family.
Old 11-13-2011, 10:04 AM
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Originally Posted by Sheep
The TBSS's and '07 up 5.3L p'ups use the same truck intake AND with 90mm throttle bodies. This truck intake has been dynoed elsewhere and has shown to make more power across curve than an LS6 intake. The truck intake is ugly but you can use the engine cover from a TBSS and even paint it.
This is true. The truck intake DOES hold it's own against an LS6 piece. So if
it fits under the hood it's just not worth it to spend $$$ and change all the
rails and stuff for minimal if any increase. Also I thought the LQ9 injectors
are large enough for healthy cam modding.



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