Re: Hooker 73-87 GM truck LS swap system
 

You should smuggle (or at least have them sell) me a set!!!! :):)

Re: Hooker 73-87 GM truck LS swap system
 

The fittings he uses are are the re-usable type, so you can obtain and use the same parts he did.

Re: Hooker 73-87 GM truck LS swap system
 

A bit off topic though here is the exhaust system I put together using the 73 - 87 downpipes. The downpipes worked perfectly for this application.

Thanks again Todd.

Re: Hooker 73-87 GM truck LS swap system
 

It looks like you put those Hooker manifolds and adapters to good use Doug, nice job.

Re: Hooker 73-87 GM truck LS swap system
 

Todd,
how much better is the flow of the cast iron headers than stock truck, tbss, or Camara manifolds?

Thanks

Re: Hooker 73-87 GM truck LS swap system
 

There's never been any comparative testing done between those various manifolds at Holley, but I can tell you the Hooker manifolds were modeled after (but more tightly tucked to the engine) the geometry of the 2010-up Camaro manifolds and would offer similar performance as them.

Re: Hooker 73-87 GM truck LS swap system
 

Re: Hooker 73-87 GM truck LS swap system
 

If you look up the instructions on the Holley website, it has part numbers for the gaskets.

Re: Hooker 73-87 GM truck LS swap system
 

The GM manifold outlet gasket referenced in the instructions is part number 92202326, is that the gasket you've ordered/received?

Re: Hooker 73-87 GM truck LS swap system
 

Re: Hooker 73-87 GM truck LS swap system
 

Can anyone confirm if the Headers sold in the kit hang below the frame rails? In the pictures it looks pretty close but hard to say for sure. If they do hang lower is there any fitment issues with using other brands of shorties or midlength headers hitting the mounts at all?

Re: Hooker 73-87 GM truck LS swap system
 

The headers do not drop below the bottom of the frame at all. I can't say if any other headers will fit with the Hooker engine brackets.

Re: Hooker 73-87 GM truck LS swap system
 

Now that's what I call service! Awesome, Thanks a lot.

As for the engine brackets I don't think I was clear on what I mean't, Sorry. I was referring to the engine mounts that are sold in the 2334K1 Kit.

Re: Hooker 73-87 GM truck LS swap system
 

That kit number you posted is something the Jeg's packages and sells on its own, but going off of the image of the components on their website, they are the Hooker GM truck engine mounts (12621HKR) I had in mind when I gave my answer as to the fitment of non-Hooker headers.

Re: Hooker 73-87 GM truck LS swap system
 

Any more info on the dual tank setup on the red truck?

wondering if an 87+ blazer tank will work with the 3in exhaust.

The tanks are stock, but I'm not sure what other parts the rest of the fuel system is comprised of. I can't say whether or not the Blazer tank would be compatible with Hooker exhaust system as it was not evaluated for compatibility during development of the whole system.
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Re: Hooker 73-87 GM truck LS swap system
 

I've not posted any new information in this thread in a while and thought I'd share some new Holley accessory drive options that apply to this application.

Holley has recently released a new accessory drive system that shares the same component configuration as the 4th-gen F-body FEAD. This set-up is capable of being installed at both the F-body and truck offsets with the parts contained in the packaging; installation at the Corvette-offset is not possible.

A very cool feature of this set-up is it allows the user to install the small or large truck type alternators as you can see in the attached photos.

The new Holley low-mount A/C compressor bracket for the Sanden SD7B10 also shown in the photos has the capability of being installed at the Corvette, F-body or truck offsets, depending on the vehicle application and the specific engine swap brackets being used.

For those of you using the Hooker 12612HKR 73-87 GM truck brackets, the A/C compressor bracket can be installed at the F-body and truck offsets without have to cut or modify anything.

The parts shown in the photos were painted black by the vehicle owner and are not available from Holley in that finish; all production components are bare aluminum.[IMG]http://i765.photobucket.com/albums/x...psvb9hn5af.jpg[/IMG][IMG]http://i765.photobucket.com/albums/x...ps0iqpntgx.jpg[/IMG][IMG]http://i765.photobucket.com/albums/x...psj4dqz8zv.jpg[/IMG][IMG]http://i765.photobucket.com/albums/x...psbc0k5o7e.jpg[/IMG].

Re: Hooker 73-87 GM truck LS swap system
 

Hope to have my LY6 6.0 on a test stand soon. Where is everybody ordering the Holley parts from? Haven't really found the swap parts cheaper than holley.com??

Re: Hooker 73-87 GM truck LS swap system
 

Any idea as to when the AC bracket will ship? I pre-ordered a month ago and the estimated ship date keeps getting pushed back to maintain a two week gap to the present day.

I don't have any idea personally as I'm not involved with the development of those particular products.
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Re: Hooker 73-87 GM truck LS swap system
 

Todd,

While I remember you posting somewhere (ls1tech maybe) you had developed the mounts for the LT power train in the 73 - 87 trucks, I have been struggling to find them on the Holley website. There is no reference to the LT in the products section.

Would you be able to provide a link or part numbers?

Thank you!

Re: Hooker 73-87 GM truck LS swap system
 

Hello Doug. Holley has not designed LT swap engine brackets for the 73-87 GM truck applications at this time, only LS swap engine brackets.

Re: Hooker 73-87 GM truck LS swap system
 

OK, thank you Todd. That explains why I can’t find them. It must have been another application. Really appreciate your quick response.

Are they on your “To Do” list? I was thinking they had been developed based on post 79 in 87Chevy.com LT swap...http://67-72chevytrucks.com/vboard/s...=712571&page=4

Also, the Holley mid mount accessory drive system is on my purchase list for my 48 Burb. Really appreciate the product support you guys are providing!

Re: Hooker 73-87 GM truck LS swap system
 

This is what I put together using stock lines.....

Re: Hooker 73-87 GM truck LS swap system
 

Does anyone know if the Holley engine mounts and crossmember will work for a 6l90e transmission on a 2wd C10 with low hump?