C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Headman headers.

Thread Tools
 
Search this Thread
 
Old Nov 26, 2002 | 10:15 AM
  #1  
devilfish's Avatar
devilfish
Thread Starter
Melting Slicks
15 Year Member
 
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
Default Headman headers.

I can get som at a really goood price! Are they any good? I know hooker are better choise. But are headmans "ok"?

Regards


[Modified by devilfish, 4:21 PM 11/26/2002]
Reply
Old Nov 26, 2002 | 10:19 AM
  #2  
ski_dwn_it's Avatar
0ski_dwn_it
Former Vendor
 
Joined: Jun 2001
Posts: 7,204
Likes: 6
From: St Marys PA
Default Re: Headman headers. (devilfish)

My hookers were the first headers I did not have to mess with to get to fit. So far I love them....Why don't you want them. They must be in the same price range.
Reply
Old Nov 26, 2002 | 10:35 AM
  #3  
devilfish's Avatar
devilfish
Thread Starter
Melting Slicks
15 Year Member
 
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
Default Re: Headman headers. (ski_dwn_it)

will I can get headmans here in sweden for $200 and hookers for $600 :/

Reply
Old Nov 26, 2002 | 10:39 AM
  #4  
War Machine's Avatar
War Machine
Le Mans Master
 
Joined: Aug 2000
Posts: 5,192
Likes: 1
From: Airport Cruise-in 1 Veteran Airport Cruise-in 2 Veteran
Cruise-In II Veteran
Default Re: Headman headers. (devilfish)

You might have to work them to make it fit. I have almost "0" clearence between the #8 pipe and the A/C blower box with my Hedman. Burning fiberglass smells :U
Reply
Old Nov 26, 2002 | 10:46 AM
  #5  
devilfish's Avatar
devilfish
Thread Starter
Melting Slicks
15 Year Member
 
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
Default Re: Headman headers. (War Machine)

Well this headers are used, so I guess they have fitted at some point ;)
How do you "work" them, heat them and warp them?

Regards
Reply
Old Nov 26, 2002 | 10:51 AM
  #6  
satyr7777's Avatar
satyr7777
Racer
 
Joined: Feb 2001
Posts: 481
Likes: 0
From: San Antonio, TX USA
Default Re: Headman headers. (devilfish)

I have a set of Headman elites on my suburban, they are great. 14 ga, and ceramic coated inside and out, and run cooler than most, and have a good warranty. Don't know much about the vette application, but I really like the set on my truck. Got them from Summit, and I'd bet you'll run into some sort of fitment issues with nearly EVERY header out there, unless you run shorties. -J
Reply
Old Nov 26, 2002 | 10:56 AM
  #7  
ski_dwn_it's Avatar
0ski_dwn_it
Former Vendor
 
Joined: Jun 2001
Posts: 7,204
Likes: 6
From: St Marys PA
Default Re: Headman headers. (devilfish)

You can't order something from Summit here in the US and have them shipped? I realize the shipping might be more, but not 200 beans more. :confused:
Reply
Old Nov 26, 2002 | 11:00 AM
  #8  
Raistlin's Avatar
Raistlin
Burning Brakes
 
Joined: Jan 2001
Posts: 1,169
Likes: 0
From: Manhattan
Default Re: Headman headers. (devilfish)

My headmans fit fine. I did get them coated, which I highly recommend. Headmans will rust pretty quickly.

If their coated for $200, that's a good deal, if not, coating will be another $200. I bought an uninstalled Vanderzanden exhaust kit, headman headers, 2.5" pipe. I had the headers coated. I finally trashed the porly(sp?) fitting pipes and had a local exhaust guy bend me a 3" dual system ($300) using the LT1 factory hangers.

If I were to do it all over again, I'd buy the coated supercomps, and have a local exhast shop bend me some duals. I came out to about that price, but I've got the smaller (1 5/8" vs. 1 3/4") headers.

The good news is the headmans and 2.5" exhause gave me 254hp/354tq at the wheels. I haven't tested the 3" yet, but I expect it to be no different.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-1

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-2

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-3

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-6

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-7

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Nov 26, 2002 | 11:09 AM
  #9  
devilfish's Avatar
devilfish
Thread Starter
Melting Slicks
15 Year Member
 
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
Default Re: Headman headers. (Raistlin)

I will get them coated.
Is there any diffrence on fitting them on a 91 vs pre 91?
Anyone got a picture of them installed on a vette?

thanks
Reply
Old Nov 26, 2002 | 11:11 AM
  #10  
War Machine's Avatar
War Machine
Le Mans Master
 
Joined: Aug 2000
Posts: 5,192
Likes: 1
From: Airport Cruise-in 1 Veteran Airport Cruise-in 2 Veteran
Cruise-In II Veteran
Default Re: Headman headers. (devilfish)

The problem area on my L98 is the pipe bend coming right off the flange. It looks as if it could have been bent a few more degrees forward and in toward the block. I burned the box so bad that it broke when I tried to remove it. I had them coated inside and out.
The one thing that was cool was we had the valve covers off with the engine running and oil was spurting out onto the headers. No! Burning oil all over the headers was not cool but, after an hours worth of running time, the oil is almost completely burned off like it never happened. :thumbs:

My mistake was not having them fit before I got them coated. :bb


[Modified by War Machine, 10:14 AM 11/26/2002]
Reply
Old Nov 26, 2002 | 11:15 AM
  #11  
Raistlin's Avatar
Raistlin
Burning Brakes
 
Joined: Jan 2001
Posts: 1,169
Likes: 0
From: Manhattan
Default Re: Headman headers. (devilfish)

mine's a '90. I don't think there's any difference on fittment. Even the LT1 guys use L98 headers. There's probably some differences from header-to-header from manufactureing, which would explain some fitment problems.

Unfortunately I don't have any pictures, but they sure do clean up the engine bay, those and the AIR eliminator kit. :yesnod:
Reply
Old Nov 26, 2002 | 11:18 AM
  #12  
oldace84's Avatar
oldace84
Race Director
10 Year Member
 
Joined: Aug 2002
Posts: 13,356
Likes: 0
From: tucson AZ
St. Jude Donor '04 & '05
Default Re: Headman headers. (devilfish)

How hard is it to change spark plugs with them?????


:smash:
Reply
Old Nov 26, 2002 | 11:30 AM
  #13  
devilfish's Avatar
devilfish
Thread Starter
Melting Slicks
15 Year Member
 
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
Default Re: Headman headers. (oldace84)

I think I will get them :)
Reply
Old Nov 26, 2002 | 11:33 AM
  #14  
War Machine's Avatar
War Machine
Le Mans Master
 
Joined: Aug 2000
Posts: 5,192
Likes: 1
From: Airport Cruise-in 1 Veteran Airport Cruise-in 2 Veteran
Cruise-In II Veteran
Default Re: Headman headers. (oldace84)

Changing plugs difficulty will vary by install. Here is my senerio for instance. Even w/o all the emission plumbing I'd say my passenger side is more difficult than when stock. Part of it is the dipstick tube, it's not held on by the header bolt like it is with the stock manifold bolt. Another part is the angle of the tubes themselves. But worst of all I have the Taylor boot covers and they take up most of the space left over between plugs. I bought one of those boot remover tools and I have a cut down spark plug socket to make things easier.
Reply
Old Nov 26, 2002 | 11:35 AM
  #15  
devilfish's Avatar
devilfish
Thread Starter
Melting Slicks
15 Year Member
 
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
Default Re: Headman headers. (War Machine)

well I think I kan tweak them to fit. Anyway, its better them my stock manifolds ;)

:thumbs:
Reply
Old Nov 26, 2002 | 11:48 AM
  #16  
atotalnincompoop's Avatar
atotalnincompoop
Race Director
10 Year Member
 
Joined: Mar 2002
Posts: 12,968
Likes: 0
Default Re: Headman headers. (devilfish)

I have hedman headers and they work great,they fell right into place with no B.S. and haven't had a problem yet. and the price is right :cheers:
Reply
Old Nov 26, 2002 | 11:55 AM
  #17  
devilfish's Avatar
devilfish
Thread Starter
Melting Slicks
15 Year Member
 
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
Default Re: Headman headers. (atotalnincompoop)

cool :)
Reply

Get notified of new replies

To Headman headers.

Old Nov 26, 2002 | 03:24 PM
  #18  
BLUE ONE's Avatar
BLUE ONE
Racer
10 Year Member
 
Joined: Apr 2002
Posts: 415
Likes: 0
From: loughborough Leics ENGLAND
Default Re: Headman headers. (devilfish)

I have just fitted Heddmans to my 90 auto they fit without having to remove anything, i had no body or chassis clearence issues.

The "only" thing i was not happy with was they do not fit the 113 heads correctly in terms of alingment which could lead to leaks and burned gaskets later if you do not check it on installation. I had to slot the bolt holes .100 " to move the pipes upward to be level with the top of the exhaust port. I then welded on the bolt tubes from my original manifolds to ensure they stop in the correct position.

For the money i am very pleased with them
( i have not got the money for hookers or tpis etc )

I have coated mine, but i have not run the car in anger yet so i have no idea on actual gains.

:cheers:
Reply
Old Nov 26, 2002 | 03:42 PM
  #19  
BLUE ONE's Avatar
BLUE ONE
Racer
10 Year Member
 
Joined: Apr 2002
Posts: 415
Likes: 0
From: loughborough Leics ENGLAND
Default Re: Headman headers. (BLUE ONE)

I forgot to say regards plugs, i struggled for a bit with a plug socket. I then tried a 14mm double ended ring spanner and found i can get all my plugs with that after winding them in finger tight by hand.

:cheers:
Reply
Old Nov 26, 2002 | 04:24 PM
  #20  
devilfish's Avatar
devilfish
Thread Starter
Melting Slicks
15 Year Member
 
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
Default Re: Headman headers. (BLUE ONE)

ahh I got 113 heads ( alu heads ). Could you tell me more about your mod on the headers?

Regards
Reply



All times are GMT -4. The time now is 10:16 PM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE