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

Last Bolt (6th Bolt)

Thread Tools
 
Search this Thread
 
Old Oct 28, 2007 | 12:10 PM
  #1  
KameleonTransAm's Avatar
Thread Starter
TECH Enthusiast
iTrader: (1)
 
Joined: Jul 2006
Posts: 600
Likes: 0
From: JAX, FL
Default Last Bolt (6th Bolt)

I was wondering if anyone with XS headers has been able to get the back bolt on the driverside header to go in. I can get the first five in then the last doesn't fit correctly. Is this a flaw in the header design or have some of you gotten all six bolts in correctly?
Reply
Old Oct 28, 2007 | 01:06 PM
  #2  
Black99CamaroSS's Avatar
TECH Apprentice
iTrader: (3)
 
Joined: Jun 2006
Posts: 319
Likes: 0
From: Alma, Ar.
Default

Did you try loosing all your bolts and trying to put that one in?
Reply
Old Oct 28, 2007 | 01:11 PM
  #3  
dug's Avatar
dug
Banned
iTrader: (10)
 
Joined: Aug 2002
Posts: 3,721
Likes: 0
From: Phoenix
Default

yeah, get all the bolts in before torqueing them down. THen torque the center and work your way out.
Reply
Old Oct 28, 2007 | 01:11 PM
  #4  
motoo344's Avatar
TECH Fanatic
iTrader: (19)
 
Joined: Jul 2006
Posts: 1,072
Likes: 0
From: Doylestown, PA
Default

You could try taking 4 of them out and then it will be most free to move into place.
Reply
Old Oct 28, 2007 | 01:12 PM
  #5  
RedRallyeZ's Avatar
TECH Fanatic
iTrader: (20)
 
Joined: Jul 2006
Posts: 1,395
Likes: 2
From: Sugartit, South Carolina
Default

ive heard that you have to just barely thread some of the other bolts in to get that last one to start. so untighten the others and see if that works.

mine didnt have that problem, but ive heard of other peoples sets doing that too
Reply
Old Oct 28, 2007 | 03:34 PM
  #6  
motoo344's Avatar
TECH Fanatic
iTrader: (19)
 
Joined: Jul 2006
Posts: 1,072
Likes: 0
From: Doylestown, PA
Default

Originally Posted by RedRallyeZ
ive heard that you have to just barely thread some of the other bolts in to get that last one to start. so untighten the others and see if that works.

mine didnt have that problem, but ive heard of other peoples sets doing that too
I didnt tq any of them down until they were all in. I just tried to get whatever one in that was the easiest and then went from there. Back lined up, it was just a pain.
Reply
Old Oct 28, 2007 | 03:36 PM
  #7  
Tainted's Avatar
TECH Senior Member
iTrader: (9)
 
Joined: Mar 2006
Posts: 8,425
Likes: 2
From: Indianapolis
Default

start from the back and go forward, mine went it perfectly. torue them from the center out like said above
Reply
Old Oct 28, 2007 | 03:49 PM
  #8  
arcticwhiteTA's Avatar
12 Second Club
iTrader: (9)
 
Joined: Oct 2006
Posts: 158
Likes: 0
From: MI
Default

I had to drill out four of the 12 bolt holes in order for them all to line up correctly. Maybe you can get it by loosening the others, but that's what I had to do.
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 Oct 28, 2007 | 04:27 PM
  #9  
RevGTO's Avatar
Pontiacerator
20 Year Member
Photogenic
Liked
Loved
iTrader: (12)
 
Joined: Nov 2003
Posts: 6,216
Likes: 236
From: Wichita KS / Rancho San Diego
Default

We had to open that hole in particular to get it to fit. We also did the #1 so we could pivot the header a bit. Be careful threading in the bolts - if they're not perfectly straight it's easy to bugger up the threads in the head. Ask me how I know ...
Reply
Old Oct 28, 2007 | 05:59 PM
  #10  
camscam02's Avatar
9 Second Club
iTrader: (21)
 
Joined: Apr 2006
Posts: 3,240
Likes: 1
From: sacramento, CA
Default

we had the same problem u just have to be patient and go slow and torque each down a little at a time! its a header flaw! sucks!
Reply
Old Oct 28, 2007 | 06:41 PM
  #11  
01FbTaWs6's Avatar
11 Second Club
iTrader: (12)
 
Joined: May 2005
Posts: 1,142
Likes: 0
From: Cedar Rapids, IA
Default

yes, be careful with the bolts! make sure they are started perfectly straight. I buggered up one of my bolt holes in the head on the passenger side, and just this weekend, i was helping with a header install on a buddys car, and another kid messed up one of the passenger bolts also on the car. It happened to be the very back one. They will go, just be patient.
Reply
Old Oct 28, 2007 | 10:25 PM
  #12  
Da Swami's Avatar
TECH Apprentice
iTrader: (6)
 
Joined: Sep 2006
Posts: 330
Likes: 0
From: UCLA
Default

My dad helped me do my install and he had a good idea which was to go out and buy some longer M10 (or whatever it was) bolts and cut the heads off to make "studs."

I used three of them to get the header on and lined up, put in three "real" bolts, then took out the "studs" and replaced them with more "real" bolts.


Took no time at all......
Reply
Old Oct 29, 2007 | 07:31 PM
  #13  
KameleonTransAm's Avatar
Thread Starter
TECH Enthusiast
iTrader: (1)
 
Joined: Jul 2006
Posts: 600
Likes: 0
From: JAX, FL
Default

Hmmm....how would you know if you "buggered" up one of the bolts or the heads? Would the bolts get stuck or something else?
Reply
Old Oct 30, 2007 | 12:01 AM
  #14  
RevGTO's Avatar
Pontiacerator
20 Year Member
Photogenic
Liked
Loved
iTrader: (12)
 
Joined: Nov 2003
Posts: 6,216
Likes: 236
From: Wichita KS / Rancho San Diego
Default

It gets progressively harder to turn it as it goes in ... resistance keeps increasing.
Reply
Old Oct 30, 2007 | 02:12 AM
  #15  
DropTopBird's Avatar
TECH Resident
15 Year Member
iTrader: (18)
 
Joined: Jan 2006
Posts: 888
Likes: 0
From: Central PA
Default

Mine did the same thing. I just retapped the bolt hole and then worked the bolts in real slowly. Try getting the back one just started and then the front one so the holes are lined up on the others and you should be golden. It takes a little while to get it right because the header needs to be compleatly flush against the head and all the holes need to be lined up perfectly. Another pair of hands and a little luck will do wonders for ya.
Reply
Old Oct 30, 2007 | 07:32 AM
  #16  
BlackScreaminMachine's Avatar
Internet Mechanic
20 Year Member
iTrader: (17)
 
Joined: May 2005
Posts: 9,830
Likes: 2
From: Wallingford CT
Default

Just be careful, on my Dynatechs, we got all the bolts in there except the middle one on the driver side. The header got cocked due to the clamping load of the headers and the POS Dynatech MLS Directional gasket almost fubar'ed the job, I fucked up some threads on the head but we got it out and tapped it.

Try to get the outside bolts 1st and work your way in. Do them all at the same time and make sure the thread evenly and cleanly. If you have to take all bolts and even head threads and tap/die them to ensure a clean fit.
Reply
Old Oct 30, 2007 | 11:04 PM
  #17  
KameleonTransAm's Avatar
Thread Starter
TECH Enthusiast
iTrader: (1)
 
Joined: Jul 2006
Posts: 600
Likes: 0
From: JAX, FL
Default

Say hypothetically you overcame the greater resistance and got all six bolts in, should you undo it and try again, or just leave it?
Reply
Old Oct 30, 2007 | 11:13 PM
  #18  
chuckyt1's Avatar
11 Second Club
iTrader: (33)
 
Joined: Apr 2006
Posts: 1,008
Likes: 0
From: Chicago Area
Default

I got all of them in with no problem. If by overcoming the greater resistance you mean you were able to thread them in by hand - torque them down and press on...
Reply
Old Oct 30, 2007 | 11:17 PM
  #19  
DropTopBird's Avatar
TECH Resident
15 Year Member
iTrader: (18)
 
Joined: Jan 2006
Posts: 888
Likes: 0
From: Central PA
Default

No I think he means that he just cranked on them despite them not wanting to go in as they should. Thats a tough call on what to do because if you take them out the holes could be all messed up. If you do take them out be sure to had a tap ready to redo the threads because if they were as difficult as mine, cranking them in definitely messed up the threads.
Reply
Old Oct 30, 2007 | 11:25 PM
  #20  
chuckyt1's Avatar
11 Second Club
iTrader: (33)
 
Joined: Apr 2006
Posts: 1,008
Likes: 0
From: Chicago Area
Default

Originally Posted by DropTopBird
No I think he means that he just cranked on them despite them not wanting to go in as they should. Thats a tough call on what to do because if you take them out the holes could be all messed up. If you do take them out be sure to had a tap ready to redo the threads because if they were as difficult as mine, cranking them in definitely messed up the threads.
Well then... If they are tight and don't leak, I wouldn't touch 'em
Reply



All times are GMT -5. The time now is 07:18 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