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

Stainless shorty header options

Thread Tools
 
Search this Thread
 
Old Apr 16, 2019 | 11:08 AM
  #1  
anesthes's Avatar
anesthes
Thread Starter
Safety Car
Supporting Lifetime
20 Year Member
All Eyes On Me
Photogenic
Photoriffic
 
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
Default Stainless shorty header options

I ordered a set of these. They are similar to the pace setter, but the collector is higher up. They surely won't bolt to the factory exhaust, but for applications where you are deleting the cats and doing your own down pipe these might be a good option.

I'll report back. For $148 if they don't work on the C4, they will make decent turbo headers for something else lol.

-- Joe


Reply
Old Apr 16, 2019 | 12:28 PM
  #2  
81c3's Avatar
81c3
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2005
Posts: 8,576
Likes: 963
From: Communist Colorado
Default

Should get long tubes... and a full exhaust. Shortys are worthless for any power gains
Reply
Old Apr 16, 2019 | 01:03 PM
  #3  
anesthes's Avatar
anesthes
Thread Starter
Safety Car
Supporting Lifetime
20 Year Member
All Eyes On Me
Photogenic
Photoriffic
 
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
Default

Originally Posted by 81c3
Should get long tubes... and a full exhaust. Shortys are worthless for any power gains
True to a degree. On my 800+ hp track car I run long tubes, although not tuned for the operating range, they are just off the shelf stainless long tubes.

On most of my 400-450hp street cars I just use short tube headers. I have used hooker long tubes on C4's before and they are not bad, but I'd prefer a short stainless header over a mild steel long tube.


-- Joe
Reply
Old Apr 19, 2019 | 03:05 PM
  #4  
anesthes's Avatar
anesthes
Thread Starter
Safety Car
Supporting Lifetime
20 Year Member
All Eyes On Me
Photogenic
Photoriffic
 
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
Default

So these actually fit quite well. They took about 30 minutes to install. They come with gaskets and little curved collectors which is nice. I may or may not use the collectors but for someone that wants to cut their stock y-pipe or cats out and run a 45/60* bend into their factory exhaust these are a good option.

Alternatively I could cut the collectors off and weld ball + socket flanges.

Unlike the pacesetter they don't rub the heater / ac box. Which is good. As with any header, I'd wrap the fuel lines with some DEI thermal reflective wrap.

-- Joe








Reply
Old Apr 19, 2019 | 09:56 PM
  #5  
VikingTrad3r's Avatar
VikingTrad3r
Oil Producer
Supporting Gold
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2014
Posts: 9,371
Likes: 2,736
Default

would these be better than the l98 factory shorties?
Reply
Old Apr 20, 2019 | 12:56 AM
  #6  
BLKMAMBA's Avatar
BLKMAMBA
Pro
 
Joined: Jan 2017
Posts: 702
Likes: 55
From: West Deptford New Jersey
Default

Very similar to the shorties I previously had on mine which did rub the heater box. I got AN adapter fittings and stainless line and re routed fuel lines. worst part was it made plugs ridiculous to change. Ive since moved onto Hooker Ceramic LT's
Reply
Old Apr 20, 2019 | 03:16 PM
  #7  
anesthes's Avatar
anesthes
Thread Starter
Safety Car
Supporting Lifetime
20 Year Member
All Eyes On Me
Photogenic
Photoriffic
 
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
Default

Originally Posted by VikingTrad3r
would these be better than the l98 factory shorties?
Yes, id say. Larger primaries.

-- Joe
Reply
Old Apr 20, 2019 | 08:12 PM
  #8  
cv67's Avatar
cv67
Team Owner
15 Year Member
 
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Default

How do your plugs and wires fit?
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 Apr 21, 2019 | 08:31 PM
  #9  
jpipx's Avatar
jpipx
Instructor
Photogenic
Liked
Loved
Community Favorite
 
Joined: Aug 2016
Posts: 240
Likes: 51
From: Putnam County NY
Default

Nice job, looks like a clean install. I installed a set of ceramic coated Doug's shorties on my 95 coupe and needed to be somewhat creative but they mated up quite well to the stock exhaust. I always liked shorties on a non-track machine.
Reply
Old Apr 22, 2019 | 04:57 AM
  #10  
anesthes's Avatar
anesthes
Thread Starter
Safety Car
Supporting Lifetime
20 Year Member
All Eyes On Me
Photogenic
Photoriffic
 
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
Default

Originally Posted by cuisinartvette
How do your plugs and wires fit?
Quite well! I did swap the boots on #6 and #8 for 90 degree.







Reply
Old Apr 25, 2019 | 08:20 AM
  #11  
anesthes's Avatar
anesthes
Thread Starter
Safety Car
Supporting Lifetime
20 Year Member
All Eyes On Me
Photogenic
Photoriffic
 
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
Default

The coolant temp sender is awfully close to the primary, so I opted for a TU66 sensor (L98 car) and changed the connector. Better safe than sorry.

Ordered some header buddies for a leak proof collector seal.

-- Joe
Reply
Old Apr 25, 2019 | 10:55 AM
  #12  
JimLentz's Avatar
JimLentz
Melting Slicks
Supporting Lifetime
10 Year Member
 
Joined: Jan 2014
Posts: 2,478
Likes: 254
From: Downers Grove Illinois
Default

Flanges sure look nice and thick.
Reply
Old Apr 25, 2019 | 11:19 AM
  #13  
anesthes's Avatar
anesthes
Thread Starter
Safety Car
Supporting Lifetime
20 Year Member
All Eyes On Me
Photogenic
Photoriffic
 
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
Default

Originally Posted by JimLentz
Flanges sure look nice and thick.
Hey nice car, same color as mine!

The flanges are thick. I think they are good replacements for the stock header on a L98 or manifold on an LT1 in a 400ish HP street car, which is the goal here.

The pacesetter is probably closer to a 'direct fit' header, but I like the idea of a stainless header over a painted mild steel header.

-- Joe
Reply
Old Apr 25, 2019 | 01:14 PM
  #14  
VikingTrad3r's Avatar
VikingTrad3r
Oil Producer
Supporting Gold
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2014
Posts: 9,371
Likes: 2,736
Default

Is the meeting flange to the downpipe of the exhaust, the front why, a direct fit? Or is there some fabrication or something that needs to be done to fit a standard friend Wai from a L 98 or LT one?
Reply
Old Apr 25, 2019 | 01:17 PM
  #15  
anesthes's Avatar
anesthes
Thread Starter
Safety Car
Supporting Lifetime
20 Year Member
All Eyes On Me
Photogenic
Photoriffic
 
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
Default

Originally Posted by VikingTrad3r
Is the meeting flange to the downpipe of the exhaust, the front why, a direct fit? Or is there some fabrication or something that needs to be done to fit a standard friend Wai from a L 98 or LT one?
It will not mate with the stock ypipe or front pipes. This car is emissions exempt and has no catalytic converters, so I have two 90* mandrel bends going to header buddy's to meet the headers.

-- Joe
Reply
Old Apr 27, 2019 | 10:09 AM
  #16  
anesthes's Avatar
anesthes
Thread Starter
Safety Car
Supporting Lifetime
20 Year Member
All Eyes On Me
Photogenic
Photoriffic
 
Joined: May 2006
Posts: 4,290
Likes: 140
From: Salem NH
Default

All done. I but welded the collectors to the 90deg pipes at an angle so I had to double pass the bead to close the gap.

Should work well.

-- Joe




Reply

Get notified of new replies

To Stainless shorty header options





All times are GMT -4. The time now is 11:35 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