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

What headers for early c-4

Thread Tools
 
Search this Thread
 
Old May 18, 2004 | 08:00 PM
  #1  
redfast's Avatar
redfast
Thread Starter
Burning Brakes
 
Joined: Nov 2003
Posts: 844
Likes: 0
From: Cape Cod Ma
Default What headers for early c-4

I need headers and was wondering about a size. I was going to order 15/8 but the only one's are hedmans. And I've heard bad things about them. I dont wan't to spend more than $400 and I wan't them coated.
Hookers are in that price range and there coated. But there 13/4.
My car is an 85' with ported D-113 heads, Lingenfelter roller:LPE119 cam, 1.6 roller rockers, Accell intake,slp runners, ported plenum and the "free" mods. Don't know the ***** power but its probelly more than 360.
Would the 13/4" hookers be fine. I also have true duell exhaust :cheers:


[Modified by redfast, 1:02 AM 5/19/2004]
Reply
Old May 18, 2004 | 08:05 PM
  #2  
Steve85's Avatar
Steve85
Melting Slicks
25 Year Member
Photogenic
Liked
Loved
 
Joined: May 2001
Posts: 3,270
Likes: 26
From: Winchester VA
Cruise-In V Veteran
Default Re: What headers for early c-4 (redfast)

Check out Hedmans, I don't know if they coat them though. May have to have that done seperately.
Reply
Old May 18, 2004 | 08:08 PM
  #3  
CFI-EFI's Avatar
CFI-EFI
Race Director
10 Year Member
 
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Default Re: What headers for early c-4 (redfast)

Would the 13/4" hookers be fine. I also have true duell exhaust :cheers:
Too Big! The large tubes will cause you to sactifice a low end torque gain you can get from the 1 5/8ths" headers.

RACE ON!!!
Reply
Old May 18, 2004 | 10:51 PM
  #4  
vader86's Avatar
vader86
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2001
Posts: 62,160
Likes: 1,733
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Default Re: What headers for early c-4 (redfast)

Get the Hooker headers.
Reply
Old May 18, 2004 | 11:05 PM
  #5  
B84RADR's Avatar
B84RADR
Burning Brakes
Supporting Lifetime
15 Year Member
 
Joined: Apr 2002
Posts: 1,083
Likes: 0
From: Spanish Fork Utah
Default Re: What headers for early c-4 (vader86)

:iagree:
Reply
Old May 19, 2004 | 07:50 AM
  #6  
Nathan Plemons's Avatar
Nathan Plemons
Race Director
15 Year Member
 
Joined: May 2001
Posts: 14,165
Likes: 9
Default Re: What headers for early c-4 (redfast)

The hooker headers are quality pieces, they are really nice. Yes they are 1 3/4 but it won't HURT you any. People have very recently made it out to sound like 1 3/4 headers will absolutely kill your performance which is simply not true. The fact is that the 1 3/4 headers will give you a torque gain across the board. It might not be as much of a low end gain as with 1 5/8 but it will still be there. They will also give you plenty of headroom to grown in the future.

If the Hooker headers are in your price range then go for them, trust me you'll be happy. When I installed these headers on my car I already had a cam, with stock heads. I picked up 32 pounds of torque at the peak and lost none on the low end.
Reply
Old May 19, 2004 | 11:29 AM
  #7  
CFI-EFI's Avatar
CFI-EFI
Race Director
10 Year Member
 
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Default Re: What headers for early c-4 (Nathan Plemons)

Yes they are 1 3/4 but it won't HURT you any. People have very recently made it out to sound like 1 3/4 headers will absolutely kill your performance which is simply not true.
TRUE! I worded my previous response carefully, not to say that you will loose bottom end torque. There WILL be a bottom end gain with the 1 5/8ths" headers that you will sacrifice with the 1 3/4" headers. I think it is Jesse (Ski-dwn-it) that is setting up his 434 that is running in the 10's, and he is just switching over to 1 3/4" from his 1 5/8ths", NOW. If you have 400 cid or more, don't use it as a daily driver, and regularly run over 6000 -7000 rpms, go for the 1 3/4" headers. With less than the above, especially if you DRIVE your car, you'll be a lot happier with the smaller tubes. Regarding all the advice to the contrary, what would you recommend, if YOU'D made the mistake?

RACE ON!!!
Reply
Old May 19, 2004 | 11:52 AM
  #8  
Curveit's Avatar
Curveit
Drifting
20 Year Member
Veteran: Army
Active Streak: 30 Days
Active Streak: 60 Days
 
Joined: Feb 2003
Posts: 1,978
Likes: 2
From: San Antonio Texas
Default Re: What headers for early c-4 (redfast)

Hedmans are avaliable coated.

:chevy
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

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

 Joe Kucinski
story-9

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

 Verdad Gallardo
Old May 19, 2004 | 11:59 AM
  #9  
CFI-EFI's Avatar
CFI-EFI
Race Director
10 Year Member
 
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Default Re: What headers for early c-4 (Curveit)

:iagree: Coated and uncoated. With and without smog provisions.

RACE ON!!!
Reply
Old May 19, 2004 | 12:16 PM
  #10  
Red Tornado's Avatar
Red Tornado
Team Owner
 
Joined: Sep 2002
Posts: 22,209
Likes: 12
From: OBAMA IS HITLER
Default Re: What headers for early c-4 (CFI-EFI)

as soon as i ordered my hooker super comps, i began to worry to death that i might have made a mistake. but i also committed to modifying the engine, in the near term. without any engine mods, i still got a REAL kick in my azz FROM A DEAD STOP all the way thru thr RPM band. i love it! i'm not trying to be antagonistic here, but as much as i worry about every nut & bolt, I've since been EXTREMELY PLEASED with the wonderful performance gain.

that being said, if one has plans on a fair array of engine mods in the future -particularly for the L98'ers - then i see nothing wrong with 1 3/4 headers.
BUT, if exhaust is pretty much it, get the 1 5/8.

my .02, admittedly from a novice :cheers:
Reply
Old May 19, 2004 | 12:37 PM
  #11  
CFI-EFI's Avatar
CFI-EFI
Race Director
10 Year Member
 
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Default Re: What headers for early c-4 (bradvette)

I've since been EXTREMELY PLEASED with the wonderful performance gain.
CFI-EFI:
Regarding all the advice to the contrary, what would you recommend, if YOU'D made the mistake?
Pleased is good. They DO work well. The only way you would be more pleased, was if you tried BOTH. THEN, you would have picked the 1 5/8ths. You don't have enough mods planned to make the big tubes a better choice. See my comment in an earlier post (this thread) on Jesse's 10 second, 434, with 1 5/8ths" headers.

RACE ON!!!
Reply
Old May 19, 2004 | 08:32 PM
  #12  
TheStef's Avatar
TheStef
Burning Brakes
 
Joined: Jun 2003
Posts: 1,229
Likes: 1
Default Re: What headers for early c-4 (CFI-EFI)

It just seems to me that most people go with the 1 3/4 because Hookers and TPIS only sell the 1 3/4 and the company's who sell the 1 5/8 headers aren't very reputable and the headers aren't as good quality and tend to cause complications during the installation.

Just my 2c...

CFI-EFI, I have a 383, with stock TPI, shaved heads, free mods,... do you think the 1 3/4 would be ok? or should I really try to get the 1 5/8 ?
Reply
Old May 19, 2004 | 09:02 PM
  #13  
CFI-EFI's Avatar
CFI-EFI
Race Director
10 Year Member
 
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Default Re: What headers for early c-4 (TheStef)

CFI-EFI, I have a 383, with stock TPI, shaved heads, free mods,... do you think the 1 3/4 would be ok? or should I really try to get the 1 5/8 ?
Sure. They'll be OK. There are a lot lesser engines owned by forum members who are tickled pink with their 1 3/4" headers. You'll get more out of 1 5/8ths", though.

Here's the problem. A guy buys a set of headers and he likes them. He spent his money, and he's convinced he made the right choice. He's happy and that is great. That goes for guy's that bought either size. They both provide an improvement. Ninty five percent of the people that ASK, would be better off with 1 5/8ths" headers. And maybe only 85% of those that don't ask.

RACE ON!!!
Reply
Old May 19, 2004 | 09:06 PM
  #14  
Getzen88's Avatar
Getzen88
Safety Car
20 Year Member
 
Joined: Feb 2004
Posts: 3,819
Likes: 0
From: Anytown USA
Default Re: What headers for early c-4 (CFI-EFI)

If I were to put on some long tube headers, would I still be able to pass my smog inspection (no visual, just the breather)? I would have someone put them on for me? Not planning to do it for a while, just like to know what i'm saving my money for...

Mike
Reply
Old May 19, 2004 | 09:11 PM
  #15  
TheStef's Avatar
TheStef
Burning Brakes
 
Joined: Jun 2003
Posts: 1,229
Likes: 1
Default Re: What headers for early c-4 (Getzen88)

Yes you will still pass emissions, but I would go with headers with the EGR and air pump connections just to make 100% certain.

Some guys say you can still pass the emission with headers with no EGR and no air pump connections, but if your worried about emission, just get headers with the EGR and air pump connections.

That:s what I'll do
:cheers:
Reply
Old May 20, 2004 | 04:37 PM
  #16  
elkabong's Avatar
elkabong
Pro
10 Year Member
 
Joined: Dec 2002
Posts: 603
Likes: 0
From: 84 383 XFire Chandler, AZ
Default Re: What headers for early c-4 (TheStef)

You can get Hedman Elite's (thicker flanges) from Jet Hot that have been coated. The cost is about $600. This is the version that have the airtubes for smog. They also have them uncoated for less.
Reply
Old May 20, 2004 | 05:01 PM
  #17  
vsocks's Avatar
vsocks
Racer
 
Joined: Jan 2004
Posts: 261
Likes: 0
From: Belgium WI
Default Re: What headers for early c-4 (redfast)

The Hedman Elite Headers are thicker tube and flange PLUS I thought HTC coated from Hedman. Aside from that clarification are the "coated" headers REALLY worth the extra money and what do you gain?
Reply

Get notified of new replies

To What headers for early c-4

Old May 20, 2004 | 05:47 PM
  #18  
SS409 425HP's Avatar
SS409 425HP
Racer
15 Year Member
 
Joined: Oct 2002
Posts: 416
Likes: 2
From: Westfield MA
Default Re: What headers for early c-4 (redfast)

Does anyone here have any experience with Exotic Muscle headers? I would really like to get a set of 1 5/8" long tubes. They still list them on their web site. There was a Group Purchase here on the Forum about 5 or 6 months ago for EM long tubes. Is everybody who participated happy with them? Any regrets?? They look like a quality product. I'd really like to hear from some EM owners. Thanks
Reply
Old May 20, 2004 | 08:28 PM
  #19  
vsocks's Avatar
vsocks
Racer
 
Joined: Jan 2004
Posts: 261
Likes: 0
From: Belgium WI
Default Re: What headers for early c-4 (SS409 425HP)

What happens to the oxygen sensor? On my 84 it is mounted in the Y pipe real close to the stock manifold. I'm sure the Hedman 68440's or others require modifications in that area.
Reply
Old May 20, 2004 | 09:36 PM
  #20  
flyersfan1088's Avatar
flyersfan1088
Melting Slicks
10 Year Member
 
Joined: Jan 2003
Posts: 2,167
Likes: 0
From: What did the 5 fingers say to the face? SLAP!!
Default Re: What headers for early c-4 (redfast)

Every engine combo I've ever run through Desk Top Dyno shows bigger gains with the bigger primary size.
As far as Jesse just now going to bigger primaries, that statement doesn't exactly put a period on the end of the discussion. Who's to say he shouldn't have done it a long time ago?
Reply



All times are GMT -4. The time now is 07:54 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
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-9
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