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Truck TB and MAF, on ls1 intake in fbody

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Old 01-23-2009, 11:25 AM
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Default Truck TB and MAF, on ls1 intake in fbody
Using the 5.3 truck TB and MAF on an ls1 intake in an fbody.

Is the truck TB 75, 80, or 85mm?
The MAF is 85mm correct?
Since these are not factory ls1 sizes, what type of tubing/hose would I use to connect all of this?
What kind/size lid should I go with?
How far away does the MAF go from the TB?

Sorry for all the questions, but im getting down the last little bit of my swap and need this stuff answered.

EDIT: All of this is on a 5.3l, not sure if it matters.
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Old 01-23-2009, 11:33 AM
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I had one on mine and had issues with it opening all the way. Not sure if setup any different I got it like that and have switched back to ls1 fbody tb wo an issue
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Old 01-23-2009, 11:46 AM
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It seems to open all the way? Im just using it because it came with my motor, and my swap is already WAY over budget, and if its bigger thats a bonus!
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Old 01-23-2009, 12:07 PM
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I've got a 6.0 LQ9 DBW TB and MAF on my LS1 manifold.
It's still in progress, but everything seems to fit.
I know there are a couple threads on the truck forum with LS6 intakes, no problems there either.
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Old 01-23-2009, 12:14 PM
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Originally Posted by sman
It seems to open all the way? Im just using it because it came with my motor, and my swap is already WAY over budget, and if its bigger thats a bonus!
The factory cable throttle bodies are all the same size (LS1 and truck).
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Old 01-23-2009, 01:21 PM
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So just the MAF is bigger?

What hoses and clamps do I use to hook it all together?
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Old 01-23-2009, 03:18 PM
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Everything you'll need.
http://www.intakehoses.com/
Originally Posted by sman
So just the MAF is bigger?

What hoses and clamps do I use to hook it all together?
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Old 01-23-2009, 03:27 PM
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Ive noticed that site, but am unsure what size and quantity to order.
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Old 01-24-2009, 07:33 AM
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My TB has a 4"OD, I made a 4" OD air tube. The MAF was 3.5" OD. I ordered a 4" ID strait sleeve and a 4" to 3.5" insert reducer.
Originally Posted by sman
Ive noticed that site, but am unsure what size and quantity to order.
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Old 01-24-2009, 02:31 PM
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Originally Posted by Speartech
The factory cable throttle bodies are all the same size (LS1 and truck).
How about the DBW TB on 03+ truck, what size is it? Does it fit fast 90 intake?
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Old 01-24-2009, 04:00 PM
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LS6 intake with DBW from an Cadillac Escalade LQ9.


I imagine anything would fit then.
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Old 01-24-2009, 05:24 PM
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Hmmm, thats a thought, what did that run you?
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Old 01-25-2009, 03:38 AM
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Same combination here. But I went to the LS rail and injectors for hood clearance.
Did you remove the LQ injectors plastic tip and use them with the LS6 manifold?

Originally Posted by MoNkEyT88
LS6 intake with DBW from an Cadillac Escalade LQ9.


I imagine anything would fit then.
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Old 01-25-2009, 10:43 AM
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Originally Posted by MoNkEyT88
LS6 intake with DBW from an Cadillac Escalade LQ9.


I imagine anything would fit then.
Did the DBW TB fit directly or with use of adaptor?

What size is DBW TB?

Trying to use fast intake with DBW TB in 03+ H/CTruck.
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