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Speed engineering ls swap headers

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Old 04-10-2017, 02:45 PM   #1
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Speed engineering ls swap headers

Got my speed engineering headers in. They really are 1-7/8 or just a hair shy. What I like best is the clearance off the flange (no sharp bend right away) and best of all... the collector. A nerge bullet and a smooth necked down throat instead of a big step like the racing innovations obx or whatever ones. These ones are china made also but the primaries are clean.
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Speed engineering ls swap headers-20170407_144248.jpg   Speed engineering ls swap headers-20170407_144124.jpg   Speed engineering ls swap headers-20170407_144131.jpg   Speed engineering ls swap headers-20170407_144226.jpg   Speed engineering ls swap headers-20170407_144147.jpg  

Speed engineering ls swap headers-20170407_144139.jpg  

Last edited by Twin_Turbo; 04-10-2017 at 02:48 PM.
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Old 04-10-2017, 02:58 PM   #2
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Re: Speed engineering ls swap headers

More pics
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Speed engineering ls swap headers-irs20170410_215528.jpg   Speed engineering ls swap headers-irs20170410_215655.jpg   Speed engineering ls swap headers-irs20170410_215621.jpg  
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Old 04-10-2017, 08:14 PM   #3
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Re: Speed engineering ls swap headers

Please post pics when you install them.
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Old 04-11-2017, 07:40 AM   #4
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Re: Speed engineering ls swap headers

I'd like to add the pics I took to this thread. I'm fitting my engine/trans for measuring wire length, but I threw the headers on and took some pics.







You can see that the drivers side O2 location could be better. You have to install the sensor with the headers lose, then tighten them down. Also have to loosen the harness's loom on the sensor. It is touching the trans, but does fit.
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Old 04-11-2017, 07:05 PM   #5
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Re: Speed engineering ls swap headers

Looks like a pretty tight fit. Does it touch the frame rails at all? My RI headers touch. Just curious as to how they fit around the tight spots
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Old 04-13-2017, 08:48 AM   #6
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Re: Speed engineering ls swap headers

Looks much better than the RI headers though.
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Old 04-13-2017, 08:54 AM   #7
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Re: Speed engineering ls swap headers

Plug clearance is good
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Speed engineering ls swap headers-20170413_094811.jpg   Speed engineering ls swap headers-20170413_094818.jpg   Speed engineering ls swap headers-20170413_094824.jpg  
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Old 04-13-2017, 09:23 AM   #8
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Re: Speed engineering ls swap headers

I have these and the Racing Innovation headers too. Could take side by side pics if you guys want.
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Old 04-13-2017, 09:25 AM   #9
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Re: Speed engineering ls swap headers

Quote:
Originally Posted by 92BLKL98 View Post
Looks much better than the RI headers though.
The tube routing is different, primaries are different sizes obviously, close in price, collectors are different lengths, O2 locations/angles are slightly different.

Overall not THAT much different I'd say.
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Old 04-13-2017, 07:33 PM   #10
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Re: Speed engineering ls swap headers

Looks like they touch the sub frame in the last pic on the right/passenger side outboard of the starter flange. Any other pics of this area? I'm just cautious since I've already wasted 300.00 on the RI headers.
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Last edited by 92BLKL98; 04-13-2017 at 07:41 PM.
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Old 04-13-2017, 08:54 PM   #11
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Re: Speed engineering ls swap headers

Twin_Turbo, you mind posting the part number? I literally just found Speed Engineering today. Was about to go with some mid length Headman Huslers ones, but these cost less and look great.
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Old 04-13-2017, 10:41 PM   #12
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Re: Speed engineering ls swap headers

Quote:
Originally Posted by Streetstuff View Post
Twin_Turbo, you mind posting the part number? I literally just found Speed Engineering today. Was about to go with some mid length Headman Huslers ones, but these cost less and look great.
https://www.speed-engineering.com/ls...2-ls3-ls6.html
looks like them herel

Last edited by 86gn; 04-13-2017 at 10:43 PM. Reason: wrong link
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Old 04-13-2017, 10:46 PM   #13
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Re: Speed engineering ls swap headers

I thought that was it, but I wasn't sure.
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Old 04-21-2017, 03:06 AM   #14
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Re: Speed engineering ls swap headers

Just saw these and logged in to make sure these had been posted on here. I have 4 sets of SE headers. I modified a 2nd gen set last year to fit my GTA. Glad they finally came out with these.
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Old Today, 01:56 PM   #15
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Re: Speed engineering ls swap headers

Any chance you can take a pair of calipers to one of the primaries for a measurement? Curious if these are indeed 1 7/8 ID.
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Old Today, 02:26 PM   #16
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Re: Speed engineering ls swap headers

I did, they are 1-7/8 and in some sections because of the mandrel bends just a hair under
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Old Today, 02:27 PM   #17
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Re: Speed engineering ls swap headers

So they measured about 2" or so then? Thanks.
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Old Today, 03:38 PM   #18
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Re: Speed engineering ls swap headers

No they measured 1-7/8. That's OD not ID
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