Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

shorty headers

Thread Tools
 
Search this Thread
 
Old Apr 17, 2008 | 10:06 PM
  #21  
Janko98Z's Avatar
Teching In
 
Joined: Nov 2006
Posts: 36
Likes: 0
From: Milwaukee, WI
Default

The comparison photo shows the stock manifold heat shield. the actual manifold is much smaller, maybe 1.5" I wanted stock quality fit so I installed 1.75' BBk shorties and random tech Y with super High flow cats to my Hooker cat-back. The headers and y flow much better. The car sounds stock at idle and low rpm, above 2k rpm it's deep and loud enough to draw attention without being obnoxious. I didn't have a single issue with fit or leaks. I also installed an LS6 intake manifold. The car runs great without a tune but this summer I'll get a tune to maximize my gains.
Reply
Old Jul 25, 2011 | 09:29 AM
  #22  
cali_bear2003's Avatar
TECH Apprentice
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (7)
 
Joined: Dec 2009
Posts: 350
Likes: 2
Default

Originally Posted by King Nothing
or he could just register his car in a smog exempt county
This is a three year old thread, but there are NO smog exempt counties in California. I know this because I have lived there for the past 24 years. It's just now worth the hassel every 2 years.
Reply
Old Jul 25, 2011 | 01:33 PM
  #23  
99 Blue Bird's Avatar
TECH Resident
iTrader: (3)
 
Joined: May 2008
Posts: 832
Likes: 2
From: CALI 707
Default

yes there is. search harder and you will find them.

does anyone know what headers those are in the pics????
Reply
Old Jul 25, 2011 | 05:46 PM
  #24  
cali_bear2003's Avatar
TECH Apprentice
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (7)
 
Joined: Dec 2009
Posts: 350
Likes: 2
Default

Originally Posted by 99 Blue Bird
yes there is. search harder and you will find them.

does anyone know what headers those are in the pics????
Please do tell me WHICH counties are smog exempt??? This will be news to me that I would very much appreciate big time. I ended up shipping a car out of state because I could not smog it legally.
Reply
Old Jul 25, 2011 | 06:17 PM
  #25  
PheonixLS1's Avatar
TECH Apprentice
iTrader: (4)
 
Joined: Dec 2010
Posts: 397
Likes: 0
Default

In Julian there is no smog and it is only 15-20 miles away from Ramona and only 40-50 miles from San Diego.Both Ramona and Julian are in San Diego co.
Reply
Old Jul 25, 2011 | 06:20 PM
  #26  
PheonixLS1's Avatar
TECH Apprentice
iTrader: (4)
 
Joined: Dec 2010
Posts: 397
Likes: 0
Default

Imperial county, or at least parts of it, Salton City for sure. Vehicle must get smogged the first time it is registered in that county, after that it's game on.
Reply
Old Jul 25, 2011 | 06:21 PM
  #27  
PheonixLS1's Avatar
TECH Apprentice
iTrader: (4)
 
Joined: Dec 2010
Posts: 397
Likes: 0
Default

Lake County north of San Fran is the same way. Smog once then never again. The smog test here doesn't include the treadmill either. Just the old school tailpipe check.
Reply
Old Jul 25, 2011 | 06:46 PM
  #28  
99 Blue Bird's Avatar
TECH Resident
iTrader: (3)
 
Joined: May 2008
Posts: 832
Likes: 2
From: CALI 707
Default

Originally Posted by PheonixLS1
Lake County north of San Fran is the same way. Smog once then never again. The smog test here doesn't include the treadmill either. Just the old school tailpipe check.
this is the one i know about. although u need to have a residential address from that county on your registration and drivers licence. a P.O. Box will not cut it.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Jul 25, 2011 | 06:49 PM
  #29  
99 Blue Bird's Avatar
TECH Resident
iTrader: (3)
 
Joined: May 2008
Posts: 832
Likes: 2
From: CALI 707
Default

Originally Posted by Scoggin Dickey

does anyone know what headers these are
Reply
Old Jul 27, 2011 | 09:58 AM
  #30  
mx5.3's Avatar
Teching In
iTrader: (1)
 
Joined: Jan 2011
Posts: 14
Likes: 0
Default

I think they are Sanderson Headers
http://www.sandersonheaders.com/Chevrolet-LS1-Headers/
Reply
Old Jul 27, 2011 | 10:45 AM
  #31  
01Z28M6's Avatar
TECH Resident
 
Joined: Oct 2005
Posts: 781
Likes: 0
From: Taxme, Ohio
Default

Originally Posted by 99 Blue Bird
does anyone know what headers these are
The bottom picture is the factory exhaust manifold. It looks so large because the heat shield is on it.

This is the reason short headers produce almost no advantage. The factory exhaust is very efficient.
Reply
Old Jul 27, 2011 | 10:46 AM
  #32  
LT1559's Avatar
TECH Apprentice
iTrader: (5)
 
Joined: May 2010
Posts: 369
Likes: 0
From: Central Valley, CA
Default

might be a noob question but, what about shorties with a cutout? would you see some significant change in hp #'s that come close to having longtubes?
Reply
Old Jul 27, 2011 | 07:16 PM
  #33  
jimmyblue's Avatar
Moderator
iTrader: (11)
 
Joined: Mar 2002
Posts: 12,604
Likes: 7
From: East Central Florida
Default

JBAs are the only ones I've seen with a CARB EO#. I swapped to these
(bought used, under $200) from Jet-Hot long tubes and I'm not going
back.
Reply
Old Jul 28, 2011 | 02:42 AM
  #34  
99 Blue Bird's Avatar
TECH Resident
iTrader: (3)
 
Joined: May 2008
Posts: 832
Likes: 2
From: CALI 707
Default

Originally Posted by 01Z28M6
The bottom picture is the factory exhaust manifold. It looks so large because the heat shield is on it.

This is the reason short headers produce almost no advantage. The factory exhaust is very efficient.
i have 99 exhaust manifolds so im looking for something better. not going with longtubes. been there done that.
Reply
Old Jul 28, 2011 | 02:45 AM
  #35  
99 Blue Bird's Avatar
TECH Resident
iTrader: (3)
 
Joined: May 2008
Posts: 832
Likes: 2
From: CALI 707
Default

Originally Posted by jimmyblue
JBAs are the only ones I've seen with a CARB EO#. I swapped to these
(bought used, under $200) from Jet-Hot long tubes and I'm not going
back.
they work just as good? im definitely not paying 600 dollars for new ones. i thought all shorties were legal. thanks for letting me know.
Reply
Old Jul 28, 2011 | 05:57 PM
  #36  
jimmyblue's Avatar
Moderator
iTrader: (11)
 
Joined: Mar 2002
Posts: 12,604
Likes: 7
From: East Central Florida
Default

The car got louder, and feels as strong as before. I use a SLP Y which
I had bought, swapped off and saved, and put back. It has a much
cleaner merge than the Jet-Hots. Great long tubes and a crappy
merge can easily be worse than a good shorty based plumbing
lineup. And a stock muffler could defeat them both. And not all
long tubes are equal either.

Whatever restriction is left in the exhaust is not the JBAs' fault; they
flowed enough to blow an O2 sensor out of the hole on the Mufflex
tubes downstream (also used, with worn threads).

Beware of the ones you see on eBay, there are some truly crappy
ones going for about $99 that have bad collector designs (like a
1/2" sharp edge at the flange, turbulence galore). The JBAs have
a nice collector with even a baby velocity spike, and everything is
smooth. BBKs are pretty, I haven't ever looked at the innards.

M6 guys will benefit from the midrange torque build-out from the
resonant scavenging, some. Guys with an A4 and a high stall speed
just don't spend any time in the mid RPM range at high pedal. So
all I need is as little backpressure as can get past the sheriff.
Reply




All times are GMT -5. The time now is 12:11 PM.

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