Generation IV External Engine - Porting for TRUCK intake manifolds and throttle bodies!

Peak Speed Shop now ports LS GenIII and Gen IV Truck intake manifolds and throttle bodies!

These stock manifolds are three pieces sonic welded together. They are plagued with ridges where the pieces join together. Porting removes those ridges and bumps to create better air flow through the manifold. Our car customers have found that having their intake manifold and throttle body ported by Peak Speed Shop has been one of the lowest cost per horsepower gained mods that they could make. NOW TRUCKS CAN BENEFIT, TOO!

JUST $250 for intake manifold porting. And..... only $75 additional to have your throttle body ported at the same time!

http://www.peakspeedshop.com/attachments/Image/Trucks/L92_manifold_small.jpg http://www.peakspeedshop.com/attachments/Image/Trucks/L96_Ported_Very_Small2.jpg

Plenum Opening before and after professional porting
http://www.peakspeedshop.com/attachments/Image/Trucks/L92_Plenum_before_small.jpg http://www.peakspeedshop.com/attachments/CropImages/f5b5bfbc0726a2428863cf7440610780.jpeg

Runner before and after professional porting
http://www.peakspeedshop.com/attachments/Image/Trucks/L92_Runner_before_small.jpg http://www.peakspeedshop.com/attachments/Image/Trucks/L92_Runner_after_small2.jpg

Simply place your order at our website: http://www.peakspeedshop.com/
Then, remove your intake manifold and throttle body and ship them to us for porting. We can generally turn them around and ship them back within 2-3 days.

http://www.fuelairspark.com/Images/image/FAST/Products/ManifoldsThrottleBodies/LSXRT_102mm_380_320.jpg
For even more power, order a ported FAST manifold from us at http://www.peakspeedshop.com/

Or, call us at 719-651-1952.

Would this benefit a 6.2 silverado with 10lbs of boost?

Would this benefit a 6.2 silverado with 10lbs of boost?

Yes it will. Forced induction setups also benefit from better airflow through the intake manifold.

Do u have any in stock

Then I could send u mine after I receive urs
So no down time?

Do u have any in stock

Then I could send u mine after I receive urs
So no down time?

Unfortunately, I don't have any in inventory. While we maintain a good inventory of LS car manifolds, as of yet, we don't have a good inventory of truck manifolds. You would have to send yours in to have it ported.

We are currently turning work around in 1-2 days from the time we receive your part. Return shipping is by Fed Ex Ground which takes 3-4 days to most US locations from CO. I hope you can russle up a vehicle to fill in while yours is briefly down. :corn:

Unfortunately, I don't have any in inventory. While we maintain a good inventory of LS car manifolds, as of yet, we don't have a good inventory of truck manifolds. You would have to send yours in to have it ported.

We are currently turning work around in 1-2 days from the time we receive your part. Return shipping is by Fed Ex Ground which takes 3-4 days to most US locations from CO. I hope you can russle up a vehicle to fill in while yours is briefly down. :corn:

Ok
What kind of hp u usually see?
10-15?
Yeah I can drive 1 of my other 4 vehicles

Ok
What kind of hp u usually see?
10-15?
Yeah I can drive 1 of my other 4 vehicles

We haven't had reports from customers, yet, on the gains from our truck manifold porting. On LS2 cars, customers report a 9-13 rwhp gain from our basic porting and on LS3's a 7-11 rwhp gain. These are a different animal, but I would expect a minimum of 7 rwhp gain and wouldn't be surprised if it were as high as 15.

We would be willing to give a $75 rebate to the first two customers who send us their dyno graphs (before and after) with the ported intake and throttle body being the only mod.

Glad to hear you have some other vehicles to drive while we're porting your parts.

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Still no FAST 102 LSXRT available for 2011 6.2's ?

Still no FAST 102 LSXRT available for 2011 6.2's ?

Sorry, no new news on that one.

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when you port the truck intake is the hole in the rear of the enlarged?

when you port the truck intake is the hole in the rear of the enlarged?

Are you referring to the plenum opening on the intake manifold just behind the throttle body? If so, yes. We do enlarge it slightly. However there is not a lot that is gained there without running into the throttle body gasket.

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Are you referring to the plenum opening on the intake manifold just behind the throttle body? If so, yes. We do enlarge it slightly. However there is not a lot that is gained there without running into the throttle body gasket.

i think he is referring to the like 1.5 inch hole towards the rear of intake...if not, i am wondering if that gets enlarged.....on the l92 truck intake btw.....work looks excellent.....congrats.....

when you port the truck intake is the hole in the rear of the enlarged?

^^^^^ plz refer to post above ^^^^^

^^^^^ plz refer to post above ^^^^^

Sending you a PM.

Sending you a PM.


replied to. i would think if all else is enlarged by porting, i would think that hole would be SLIGHTLY enlarged as well.

replied to. i would think if all else is enlarged by porting, i would think that hole would be SLIGHTLY enlarged as well.

We will research that more to see if additional horsepower can be gained by enlarging the hole towards the rear inside the plenum.

Thank you for your orders! We enjoy serving the LS1Tech members. :cheers:

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We will research that more to see if additional horsepower can be gained by enlarging the hole towards the rear inside the plenum.

Have you gotten any results in from R and D dept on this ? Like to know.

Have you gotten any results in from R and D dept on this ? Like to know.

Yes. We will be posting a separate thread soon with more details. Bottom line is that Cory Harris from LS2PortWorks had perfected a method for completely opening up that hole deep in the plenum and removing additional barriers that restricted air flow in the TBSS and L92 truck manifolds. Cory's customers typically saw 15 rwhp / 15 rwtq gains and some of the L92 customers with headers, a significant cam and ported heads reported as high as a 20 rwhp gain.

Many of you truck guys were saddened when Cory announced he was no longer porting the truck manifolds. We are happy to announce that for the past several months we have been working with Cory to learn his techniques for porting these manifolds in order to pick up where he left off. In order to perform the porting, the top of the manifold is removed and then reattached once the porting is complete. Here is a photo that shows how much the plenum is opened up after the porting is completed:

http://www.peakspeedshop.com/attachments/Image/Trucks/TBSS_Plenum_After1_small.jpg

For TBSS and L92 customers wanting this radical porting, on their truck manifold, the cost is $425. We can port your throttle body at the same time for just $75 additional. You can place orders on our web site at:
http://www.peakspeedshop.com/.

In our new thread, we will also discuss the merits of 5.3L truck owners converting to the TBSS ported manifold and throttle body as a lower cost alternative if they don't want to pay for the power gains of a FAST manifold. We should have this thread up in the next 3-4 weeks. Watch for it!

Its difficult to tell from that pic , but appears to be opened nearly all the way. That must be a GEN IV intake , can you show us one of a GEN III truck with this mod. Thanks for the quick reply back , glad to see you are continuing to develop your product. Look forward to reading your new thread on the TBSS intake.

When you port the L92 throttle body how much do you enlarge it? It's off a 2009 Escalade and using an LS3 intake manfold.

Its difficult to tell from that pic , but appears to be opened nearly all the way. That must be a GEN IV intake , can you show us one of a GEN III truck with this mod. Thanks for the quick reply back , glad to see you are continuing to develop your product. Look forward to reading your new thread on the TBSS intake.

Yes, you're correct. We've opened it up all the way and this is Gen IV. Unfortunately, this level of porting cannot be done on the Gen III truck. It is done on the Trailblazer SS or L92 manifolds. However, the thread that we will be doing soon will be for Gen III 5.3L owners showing the option of switching to this radically ported Trailblazer SS manifold.

When you port the L92 throttle body how much do you enlarge it? It's off a 2009 Escalade and using an LS3 intake manfold.

The throttle body isn't enlarged from the standpoint of increasing the throttle plate diameter. All of the removal of material is in front of the throttle plate in order to create better air flow into the throttle body.

Yes, you're correct. We've opened it up all the way and this is Gen IV. Unfortunately, this level of porting cannot be done on the Gen III truck. It is done on the Trailblazer SS or L92 manifolds. However, the thread that we will be doing soon will be for Gen III 5.3L owners showing the option of switching to this radically ported Trailblazer SS manifold.

Looking forward to your new thread coverison Gen III using theTBSS intake. Will you need to have a X-link to make this work or do you have your own adaptor harness ? Also like to see more on the port work on the Gen III truck .

Looking forward to your new thread coverison Gen III using theTBSS intake. Will you need to have a X-link to make this work or do you have your own adaptor harness ? Also like to see more on the port work on the Gen III truck .

Most Gen III trucks are Drive by Cable and will not require the Drive by Wire X-link.

Here are photos of Basic Porting (before and after) on Gen III manifold.

http://www.peakspeedshop.com/attachments/Image/Trucks/LQ9small.jpg

http://www.peakspeedshop.com/attachments/Image/Trucks/LQ9_Plenum_Before.jpg http://www.peakspeedshop.com/attachments/Image/Trucks/LQ9_Plenum_After.jpg

http://www.peakspeedshop.com/attachments/Image/Trucks/LQ9_Runner_Before.jpg http://www.peakspeedshop.com/attachments/Image/Trucks/LQ9_Runner_After.jpg

http://www.peakspeedshop.com/attachments/Image/Trucks/LQ9_TB_small.jpg

Looking forward to your new thread coverison Gen III using theTBSS intake. Will you need to have a X-link to make this work or do you have your own adaptor harness ? .

Most Gen III trucks are Drive by Cable and will not require the Drive by Wire X-link.

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Yes, thats right dont need one for Gen III . Just for Gen III if using a TBSS / NBSS intake converison . Have you guys come with your own adaptor for the harness? Thanks for showing the pics good work !

Yes, thats right dont need one for Gen III . Just for Gen III if using a TBSS / NBSS intake converison . Have you guys come with your own adaptor for the harness? Thanks for showing the pics good work !

Thanks! Still working out some of the details. Will show all of the options in the upcoming thread.