Speed Engineering LS Swap Headers Findings - The 1947 - Present Chevrolet & GMC Truck Message Board Network

67chevysupercharged · 06-30-2016, 11:10 PM

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

Houston Ben · 07-04-2016, 08:21 PM

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.

67chevysupercharged · 07-05-2016, 12:24 AM

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

nobox351y · 07-06-2016, 12:09 PM

I put the shorty set on my 87 burb and fitment and quality are great for the price.

67chevysupercharged · 07-06-2016, 06:58 PM

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

nobox351y · 07-07-2016, 12:30 AM

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.

Sik66 · 07-20-2016, 09:33 AM

Quote:

Originally Posted by 67chevysupercharged

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?

67chevysupercharged · 07-20-2016, 08:46 PM

Quote:

Originally Posted by Sik66

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

Sik66 · 07-21-2016, 04:30 AM

Quote:

Originally Posted by 67chevysupercharged

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!,

gringoloco · 07-21-2016, 05:07 PM

Those look nice! How's plug wire routing?

nobox351y · 07-21-2016, 09:53 PM

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.

67chevysupercharged · 07-24-2016, 11:34 PM

Sik66,
I have the ones in the first picture.

-Zak

77c10 · 07-29-2016, 08:24 AM

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.

preciador6 · 07-29-2016, 02:03 PM

nice.

NorCalAnthony · 07-29-2016, 04:14 PM

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...

preciador6 · 07-29-2016, 04:34 PM

Quote:

Originally Posted by NorCalAnthony

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.

preciador6 · 07-29-2016, 05:42 PM

Quote:

Originally Posted by NorCalAnthony

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

65Gregg · 08-11-2016, 05:46 PM

I'd be interested in hearing if anyone has used them in a 63-66.

67_ShortFleet · 08-16-2016, 09:47 AM

Quote:

Originally Posted by 65Gregg

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!

65Gregg · 08-16-2016, 04:58 PM

Quote:

Originally Posted by 67_ShortFleet

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.

AustinBelair · 08-16-2016, 11:45 PM

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

**michael bustamante** · 08-17-2016, 11:36 AM

have you guys these for sale that are not chrome or shiny?

gringoloco · 08-17-2016, 04:35 PM

Speed tech crafts them polished. After a few heat cycles, they'll turn a nice, hazy bronze.

67_ShortFleet · 08-18-2016, 09:56 AM

They post right on their website to use MSD plug wires. What is the best stainless header bolt to keep them tight?

AnotherWs6 · 08-18-2016, 10:20 AM

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.

06-30-2016, 11:10 PM	#1
67chevysupercharged Registered User Join Date: Sep 2009 Location: Hobbs, New Mexico Posts: 48	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 Attached Images __________________ 71 Longhorn 402, PS, PDB, AC, Tach, Posi 67 SWB 6.0 LSX swap, 4/6 ECE Drop (Work in Progress) 2002 Victory Red ECSB Silverado 5.3 (DD)

07-04-2016, 08:21 PM	#2
Houston Ben Registered User Join Date: May 2013 Location: Houston Texas Posts: 713	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. __________________ 1986 C10, 2011 5.3 w/6L80, 3.42 w/ Detroit TrutTrac Build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=584532

07-05-2016, 12:24 AM	#3
67chevysupercharged Registered User Join Date: Sep 2009 Location: Hobbs, New Mexico Posts: 48	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 __________________ 71 Longhorn 402, PS, PDB, AC, Tach, Posi 67 SWB 6.0 LSX swap, 4/6 ECE Drop (Work in Progress) 2002 Victory Red ECSB Silverado 5.3 (DD)

07-06-2016, 12:09 PM	#4
nobox351y Registered User Join Date: May 2016 Location: LeRoy Posts: 69	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.

07-06-2016, 06:58 PM	#5
67chevysupercharged Registered User Join Date: Sep 2009 Location: Hobbs, New Mexico Posts: 48	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 __________________ 71 Longhorn 402, PS, PDB, AC, Tach, Posi 67 SWB 6.0 LSX swap, 4/6 ECE Drop (Work in Progress) 2002 Victory Red ECSB Silverado 5.3 (DD)

07-07-2016, 12:30 AM	#6
nobox351y Registered User Join Date: May 2016 Location: LeRoy Posts: 69	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.

07-21-2016, 05:07 PM	#10
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Re: Speed Engineering LS Swap Headers Findings Those look nice! How's plug wire routing? __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy

07-21-2016, 09:53 PM	#11
nobox351y Registered User Join Date: May 2016 Location: LeRoy Posts: 69	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.

07-24-2016, 11:34 PM	#12
67chevysupercharged Registered User Join Date: Sep 2009 Location: Hobbs, New Mexico Posts: 48	Re: Speed Engineering LS Swap Headers Findings Sik66, I have the ones in the first picture. -Zak __________________ 71 Longhorn 402, PS, PDB, AC, Tach, Posi 67 SWB 6.0 LSX swap, 4/6 ECE Drop (Work in Progress) 2002 Victory Red ECSB Silverado 5.3 (DD)

07-29-2016, 08:24 AM	#13
77c10 Registered User Join Date: Aug 2011 Location: Gallatin, TN Posts: 782	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. __________________ 77 C10, 6.0LS/4L80E, 3:73 12 bolt. Boss 338's 20" x 10" w/ 285/50/20 rear. 20" x 8.5" w/ 245/40/20 front. Vintage Air. Full Autometer gauges recessed in factory bezel (Thanks bigblock73!) Gm Storm Grey Metallic paint "Cool ain't ever cheap and cheap ain't ever cool"

07-29-2016, 02:03 PM	#14
preciador6 Registered User Join Date: Dec 2013 Location: So Cal Posts: 684	Re: Speed Engineering LS Swap Headers Findings nice.

07-29-2016, 04:14 PM	#15
NorCalAnthony Registered User Join Date: Jul 2014 Location: Lincoln, CA Posts: 208	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...

08-11-2016, 05:46 PM	#18
65Gregg Registered User Join Date: Jul 2006 Location: Willis, Texas Posts: 754	Re: Speed Engineering LS Swap Headers Findings I'd be interested in hearing if anyone has used them in a 63-66. __________________ 65Gregg Blue long bed White TBSS 61 Impala “The two most important days in your life are the day you are born and the day you find out why.” Mark Twain

08-16-2016, 11:45 PM	#21
AustinBelair Registered User Join Date: Apr 2005 Location: Austin, Texas Posts: 300	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 __________________ My mother is a recent cancer survivor and this truck build is for her

08-17-2016, 11:36 AM	#22
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,862	Re: Speed Engineering LS Swap Headers Findings have you guys these for sale that are not chrome or shiny? __________________ 1967custom



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08-17-2016, 04:35 PM	#23
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Re: Speed Engineering LS Swap Headers Findings Speed tech crafts them polished. After a few heat cycles, they'll turn a nice, hazy bronze. __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy

08-18-2016, 09:56 AM	#24
67_ShortFleet Registered User Join Date: May 2008 Location: Eastern Iowa Posts: 423	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? __________________ Matt Garage build http://www.garagejournal.com/forum/s...ead.php?t=6784 My slow but sure truck build http://67-72chevytrucks.com/vboard/s...d.php?t=394924 My philosophy on tires is the same as cigarettes. "smoke them if you got them" HAPPILY DIVORCED!

08-18-2016, 10:20 AM	#25
AnotherWs6 Registered User Join Date: Feb 2016 Location: Westchester, NY Posts: 602	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. __________________ 1968 C-10 Suburban - Original 396/TH400 2002 Transam WS6 - M6 - Black/Black - Evil Garage Queen 2000 Silverado - DD - Small lift+Body lift+35" Duratracs+4.88's + Eaton TruTrac - Monster Truck 2010 Cadillac CTS Wagon Sport - Wife's DD and the only classy car we have.

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