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Old 06-30-2016, 11:10 PM   #1
67chevysupercharged
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Speed Engineering LS Swap Headers Findings

I've been looking through the site to see if anyone had really used these headers in a swap, and I only came across a few threads where folks asked about them, but never seemed to actually try them out. I was looking for a set of budget headers for my little brothers C10 and decided to go ahead and take the plunge and order them. Although we are still mocking things up, on the initial test fit these headers seem to fit very well. There is lots of clearance from the frame on both sides, and they only slightly hang below the frame giving great ground clearance.

The quality of these headers is a lot better than I expected for being less than $300 shipped, they have thick flanges, are 304 stainless steel, and 02 sensor bungs are already welded in. These are the Speed Engineering 1 3/4 in. longtube swap headers. I apologize in advance if pictures are crooked. If anyone needs any specific pictures, or has any questions let me know. Hopefully this will help a few folks out.

-Zak
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Old 07-04-2016, 08:21 PM   #2
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Re: Speed Engineering LS Swap Headers Findings

Hi 67,
I see they list two 1 3/4" headers, one for camaro's and one for 1999+ suv and trucks, which ones did you get? I was also looking at PB but htey are 350 before shipping. Looks like Speed Engineering also has shorties for 169 for C-10, that might be an option for me as well.
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Old 07-05-2016, 12:24 AM   #3
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Re: Speed Engineering LS Swap Headers Findings

Houston Ben,

These are the c10 ls swap specific headers. Here's a link to them on their website, they also have the longtubes in 1 7/8".

http://www.speed-engineering.com/ls-...2-ls3-ls6.html

-Zak
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Old 07-06-2016, 12:09 PM   #4
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Re: Speed Engineering LS Swap Headers Findings

I put the shorty set on my 87 burb and fitment and quality are great for the price.
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Old 07-06-2016, 06:58 PM   #5
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Re: Speed Engineering LS Swap Headers Findings

nobox351y,

How long have you had them on? How have they held up? That was one thing I was curious about since I'm still a ways away from starting the truck.

-Zak
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Old 07-07-2016, 12:30 AM   #6
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Re: Speed Engineering LS Swap Headers Findings

I have a couple hours of run time on them. I am still working the kinks out of my setup. I am expecting them to last. Flanges are thicker than pricey headers Ive purchased, weld quality is good, stainless is awesome.
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Old 07-20-2016, 09:33 AM   #7
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Re: Speed Engineering LS Swap Headers Findings

Quote:
Originally Posted by 67chevysupercharged View Post
I've been looking through the site to see if anyone had really used these headers in a swap, and I only came across a few threads where folks asked about them, but never seemed to actually try them out. I was looking for a set of budget headers for my little brothers C10 and decided to go ahead and take the plunge and order them. Although we are still mocking things up, on the initial test fit these headers seem to fit very well. There is lots of clearance from the frame on both sides, and they only slightly hang below the frame giving great ground clearance.

The quality of these headers is a lot better than I expected for being less than $300 shipped, they have thick flanges, are 304 stainless steel, and 02 sensor bungs are already welded in. These are the Speed Engineering 1 3/4 in. longtube swap headers. I apologize in advance if pictures are crooked. If anyone needs any specific pictures, or has any questions let me know. Hopefully this will help a few folks out.

-Zak
What brand engine mounts did you use with these?.....figment good all around?
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Old 07-20-2016, 08:46 PM   #8
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Re: Speed Engineering LS Swap Headers Findings

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What brand engine mounts did you use with these?.....figment good all around?
They are the Dirty Dingo sliders. And so far the only spot I have really seen is a corner on the block that may need to smoothed just a bit on the drivers side. But I have not fully bolted them down yet, so the gaskets may move it out enough to where trimming is not needed. If you need any specific pictures just let me know.

-Zak
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Old 07-21-2016, 04:30 AM   #9
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Re: Speed Engineering LS Swap Headers Findings

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They are the Dirty Dingo sliders. And so far the only spot I have really seen is a corner on the block that may need to smoothed just a bit on the drivers side. But I have not fully bolted them down yet, so the gaskets may move it out enough to where trimming is not needed. If you need any specific pictures just let me know.

-Zak
Cool....which version?.....just so don't waste my $$$'s on wrong set!,

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Old 07-21-2016, 05:07 PM   #10
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Re: Speed Engineering LS Swap Headers Findings

Those look nice! How's plug wire routing?
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Old 07-21-2016, 09:53 PM   #11
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Re: Speed Engineering LS Swap Headers Findings

On the shorty version fitment is good, a couple of stock plug wire boots touch the headers. Especially number 5.

Got 200 miles on my set and no leaks, and they sure look nice.
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Old 07-24-2016, 11:34 PM   #12
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Re: Speed Engineering LS Swap Headers Findings

Sik66,
I have the ones in the first picture.

-Zak
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Old 07-29-2016, 08:24 AM   #13
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Re: Speed Engineering LS Swap Headers Findings

I ordered a set of the shorties for my 77 C10-6.0/4L80E swap. Had to trim the lower ears off the trans. Other than that, I am very pleased with them.
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Old 07-29-2016, 02:03 PM   #14
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Re: Speed Engineering LS Swap Headers Findings

nice.
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Old 07-29-2016, 04:14 PM   #15
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Re: Speed Engineering LS Swap Headers Findings

Has anyone tried these on a 4x4 yet? I'm getting ready to start an LS swap on my 84 K5 and am trying to figure out the exhaust...
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Old 07-29-2016, 04:34 PM   #16
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Re: Speed Engineering LS Swap Headers Findings

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Has anyone tried these on a 4x4 yet? I'm getting ready to start an LS swap on my 84 K5 and am trying to figure out the exhaust...
those wont fit on the 4x4..i have a set of used ones i took of a 85 blazer with a 5.3 swap that dont fit my 72 k5 4x4 for sale.
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Old 07-29-2016, 05:42 PM   #17
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Re: Speed Engineering LS Swap Headers Findings

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Has anyone tried these on a 4x4 yet? I'm getting ready to start an LS swap on my 84 K5 and am trying to figure out the exhaust...
You will need pace setter headers 70-2265 on the square bodys
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Old 08-11-2016, 05:46 PM   #18
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Re: Speed Engineering LS Swap Headers Findings

I'd be interested in hearing if anyone has used them in a 63-66.
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Old 08-16-2016, 09:47 AM   #19
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Re: Speed Engineering LS Swap Headers Findings

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I'd be interested in hearing if anyone has used them in a 63-66.
I saw them and talked to a guy at Goodguys in Des Moines that is running them. Loves them!
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Old 08-16-2016, 04:58 PM   #20
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Re: Speed Engineering LS Swap Headers Findings

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I saw them and talked to a guy at Goodguys in Des Moines that is running them. Loves them!
Thanks, I'm about to pull the trigger on a few final items and want to determine the final location of my 02 sensors connections as I do the final on my harness build.
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Old 08-16-2016, 11:45 PM   #21
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Re: Speed Engineering LS Swap Headers Findings

I've got them half installed in a 66 right now. I have a 4L80e so the PASS side does not fit and you have to trim the dust cover ears
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Old 08-17-2016, 11:36 AM   #22
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Re: Speed Engineering LS Swap Headers Findings

have you guys these for sale that are not chrome or shiny?
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Old 08-17-2016, 04:35 PM   #23
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Re: Speed Engineering LS Swap Headers Findings

Speed tech crafts them polished. After a few heat cycles, they'll turn a nice, hazy bronze.
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Old 08-18-2016, 09:56 AM   #24
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Re: Speed Engineering LS Swap Headers Findings

They post right on their website to use MSD plug wires. What is the best stainless header bolt to keep them tight?
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Old 08-18-2016, 10:20 AM   #25
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Re: Speed Engineering LS Swap Headers Findings

Speed Engineering has a lot of happy customers. They are a sponsor and have a long thread on LS1tech.com about their f-body headers. You can't beat them for the price. I am not surprised to hear that these swap headers are good units as well.
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