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

header torque

Thread Tools
 
Search this Thread
 
Old Mar 16, 2006 | 04:25 PM
  #1  
sonomacrew01's Avatar
sonomacrew01
Thread Starter
Burning Brakes
15 Year Member
 
Joined: Nov 2004
Posts: 1,107
Likes: 0
From: RI
Default header torque

I've got a ticking noise coming from the pass. side and mechanic thinks its the headers. What torque specs are you guys using? I'm assuming you can't go with normal manifold specs and they should be tighter, right?

thanks
Reply
Old Mar 16, 2006 | 04:49 PM
  #2  
Square's Avatar
Square
Melting Slicks
20 Year Member
 
Joined: Jan 2001
Posts: 2,940
Likes: 5
From: Chesapeake VA
Default

I don't recall the exact amount but on my 86' (with aluminum heads), it was quite low, like 22-25ft/lbs. I did use the standard exhaust manifold torque spec. I retorqued quite a few times after the install and have not had a problem since.
Reply
Old Mar 16, 2006 | 05:13 PM
  #3  
Corvette Kid's Avatar
Corvette Kid
Large Impressive Member
Supporting Lifetime Gold
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Default

If I remember right, you have EMs, right? That means you've got stout flanges of course. I don't really torque them, it's more trouble than it's worth due to the array of tools usually needed on the different bolts. Within reason, the tighter the better. My DRMs have 3/8" flanges too. And with the copper Mr. Gaskets, although I've checked them a few times, they've never really needed retightening.
Reply

Get notified of new replies

To header torque





All times are GMT -4. The time now is 03:17 AM.

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