Intake manifold ?'s

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Feb 15, 2014 | 01:05 PM

fctry286

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Staging Lane

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Intake manifold ?'s

So I have been doing some research and I am trying to see if putting a different intake manifold on my truck is worth it. I have spent the past 4 hours searching about this.

-I would like the Fast lsxrt but lets face it, way to much.
-Holley high ram maybe? not enough info on if its worth it.
-Then the ED high ram?

I am in the process of doing a cam swap right now. I already have Long Tube headers, Tune, and CAI. The truck is a 2011 sierra 5.3l LC9 cathedral ports.

I am kinda of leaning towards the Holley High Ram, but just could not get enough info on whether or not its a good choice.

I am also trying to find out if i can use my stock truck injectors with this? I know I have to use the different fuel rails.

Any of you guys have a suggestion?

Feb 15, 2014 | 07:03 PM

garygnu

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what cam did you install ?tell us alot more about your truck .a ls truck intake flows pretty good up to 5500rpm.you can find a used BBK intake for $300 ,flows a little better then a ls6 intake .

Feb 15, 2014 | 08:23 PM

fctry286

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Staging Lane

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Cam is a Vinci trucker cam.

Feb 15, 2014 | 09:13 PM

99Bluz28

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From: C. V., Kalifornia

If you spend most of your time below 5k the stick with the truck intake manifold. You can also have it ported, which it will nicely benefit from.
http://peakspeedshop.com/Zen_Cart/in...705b5bd78d9c38

Last edited by 99Bluz28; Feb 15, 2014 at 09:28 PM.

Feb 16, 2014 | 11:44 AM

fctry286

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Staging Lane

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Is my truck manifold useful to any one else. Would any one buy it?

Feb 16, 2014 | 03:07 PM

99Bluz28

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From: C. V., Kalifornia

IMO, sounds like it's still useful for you.
The FAST LSXRT intake manifold is the only choice that won't loose any lower rpm HP/TQ compared to your truck intake manifold. That why I recommended just sticking with the stock intake, and maybe having it ported.