Forced Induction Superchargers | Turbochargers | Intercoolers

Speed Engineering down/forward

Old Apr 24, 2023 | 01:12 PM
  #1  
C5_Pete's Avatar
Thread Starter
10 Second Club
15 Year Member
Liked
Loved
Community Favorite
iTrader: (8)
 
Joined: Dec 2008
Posts: 981
Likes: 358
From: Washington TWP, NJ
Default Speed Engineering down/forward

Does anyone have a measurement of how wide the Speed Engineering headers are when bolted to an LS in the down/forward configuration?

I’m hoping they will fit between the frame rails.

Thanks
Reply
Old May 1, 2023 | 10:00 AM
  #2  
C5_Pete's Avatar
Thread Starter
10 Second Club
15 Year Member
Liked
Loved
Community Favorite
iTrader: (8)
 
Joined: Dec 2008
Posts: 981
Likes: 358
From: Washington TWP, NJ
Default

I’ve reached out to several venders that sell them, along with Speed Engineering themselves, and none of them have the answer…

I’m pretty confident someone on here has used them… I’ll be patient…
Reply
Old May 1, 2023 | 04:47 PM
  #3  
Lsxford's Avatar
TECH Enthusiast
5 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (7)
 
Joined: Nov 2016
Posts: 663
Likes: 74
From: Winfield AL
Default

Are they like the standard Chinese up and forward style headers? I just swapped from a set of Chinese to a set of flowtechs and if there's any difference width wise I couldn't tell. If this is the style you speak of I can measure them in the morning, I have them mounted down and forward.
Reply
Old May 1, 2023 | 05:17 PM
  #4  
C5_Pete's Avatar
Thread Starter
10 Second Club
15 Year Member
Liked
Loved
Community Favorite
iTrader: (8)
 
Joined: Dec 2008
Posts: 981
Likes: 358
From: Washington TWP, NJ
Default

Yeh, that sounds like them. I currently have the FlowTech on my car up/forward.

thanks.

These are the SpHeaders I’m asking about.



Reply
Old May 4, 2023 | 11:34 AM
  #5  
Lsxford's Avatar
TECH Enthusiast
5 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (7)
 
Joined: Nov 2016
Posts: 663
Likes: 74
From: Winfield AL
Default

The widest part of mine, which is the front most primaries, measure between 27-28". I also have the 1-7/8 primaries so the smaller set maybe less.
Reply
Old May 4, 2023 | 02:01 PM
  #6  
C5_Pete's Avatar
Thread Starter
10 Second Club
15 Year Member
Liked
Loved
Community Favorite
iTrader: (8)
 
Joined: Dec 2008
Posts: 981
Likes: 358
From: Washington TWP, NJ
Default

Thank you very much for taking that measurement and replying to a random guy on the internet. It appears that they will fit in my frame.

That’s what these message boards are good for.

have a great weekend!
Reply


Thread Tools
Search this Thread

All times are GMT -5. The time now is 09:43 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE