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Old 11-21-2017, 10:51 PM   #1
NC_John
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1-7/8" long tube headers?

Anyone aware of a 1-7/8" long tube LS header available for the 67-72? I've found 1-3/4" but not the larger diameter tubes.

Thanks
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Old 11-22-2017, 09:08 AM   #2
Steve Cole
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Re: 1-7/8" long tube headers?

Speed Engineering makes some but they are not coated, they are stainless steel. I guess you could have them coated. They are cheap enough and fit well.
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Old 11-22-2017, 09:22 AM   #3
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Re: 1-7/8" long tube headers?

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

Try this link.
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Old 11-22-2017, 11:49 AM   #4
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Re: 1-7/8" long tube headers?

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Thanks Steve. I'll see how they compare (visually) to the long tubes we ran on the dyno.
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Old 11-22-2017, 12:59 PM   #5
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Re: 1-7/8" long tube headers?

This is what I plan to run. Box is sitting in the garage waitin on me.

http://www.dougthorley.com/1967-1987...3Y-C_p_46.html
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Old 11-22-2017, 09:41 PM   #6
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Re: 1-7/8" long tube headers?

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Originally Posted by clemsonteg View Post
This is what I plan to run. Box is sitting in the garage waitin on me.

http://www.dougthorley.com/1967-1987...3Y-C_p_46.html
I have those now but want to switch to long tubes (better high rpm performance). Its too bad because the DT's look top notch.
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Old 11-22-2017, 11:01 PM   #7
67LS3GMC
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Re: 1-7/8" long tube headers?

I just installed Speed Engineering 1-7/8" long tubes and am impressed with the quality for the price. It will be a while before I run them (frame off rebuild)
Did have to grind a little (3/8) off pass side frame . Also ear on transmission and nub on block above oil filter. I used MSD multi angle plug wires.
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Old 11-23-2017, 08:27 AM   #8
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Re: 1-7/8" long tube headers?

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I just installed Speed Engineering 1-7/8" long tubes and am impressed with the quality for the price. It will be a while before I run them (frame off rebuild)
Did have to grind a little (3/8) off pass side frame . Also ear on transmission and nub on block above oil filter. I used MSD multi angle plug wires.
Thanks for the feedback. Yeah, they might be the only game in town for a direct fit 1-7/8 LT header. I think there are some others that *might* or *should* fit (keep hearing trailblazer SS should) but they aren't sold for our specific application so I'm staying away (I don't want to create unnecessary headaches). My engine guy compared them (visually) to his engine dyno headers and he said they looked pretty close.

I haven't heard anyone grinding on anything but the transmission to fit (and figure since mine is a M6 I might not have to). Guess I'll brace myself in case I have to do some more "fitting" like you did and maybe leave the front clip off until I know for sure.
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Old 11-23-2017, 11:47 AM   #9
71Charlie10
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Re: 1-7/8" long tube headers?

67ls3 , do you have a picture of how low the long tubes hang past the frame? trying to get an idea how low they hang from a distance before i pull the trigger.
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Old 11-23-2017, 04:00 PM   #10
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Re: 1-7/8" long tube headers?

Sorry , gave up trying to post pic
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Old 11-25-2017, 11:15 PM   #11
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Re: 1-7/8" long tube headers?

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67ls3 , do you have a picture of how low the long tubes hang past the frame? trying to get an idea how low they hang from a distance before i pull the trigger.
Read this thread, you will find pics.

http://67-72chevytrucks.com/vboard/s...d.php?t=746414
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Old 11-26-2017, 01:24 PM   #12
wesmigletz
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Re: 1-7/8" long tube headers?

Does anyone know if the speed engineering 1 3/4 or 1 7/8 headers work with a column shift?

Thanks,

Wes
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Old 11-26-2017, 02:31 PM   #13
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Re: 1-7/8" long tube headers?

I ordered a set this morning (1-7/8 long tube). I'm running a T-56 so I won't be able to comment on shift linkage clearance but I'll post some pics when they come in and I get them hung.
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