LT1-LT4 Modifications 1993-97 Gen II Small Block V8

First header install

Thread Tools
 
Search this Thread
 
Old Sep 22, 2007 | 09:16 AM
  #1  
Pntbll309's Avatar
Thread Starter
11 Second Club
15 Year Member
iTrader: (33)
 
Joined: Nov 2006
Posts: 926
Likes: 0
From: Colorado Springs
Default First header install

How long should it take me? I have all the stuff, and power tools, Im lazy I know.
Reply
Old Sep 22, 2007 | 04:01 PM
  #2  
Pntbll309's Avatar
Thread Starter
11 Second Club
15 Year Member
iTrader: (33)
 
Joined: Nov 2006
Posts: 926
Likes: 0
From: Colorado Springs
Default

An hour into and got 1 manifold off (drivers side, I went the easy route first LOL!) So nothing toooooo hard except one of the back manifold bolts.
Reply
Old Sep 22, 2007 | 04:17 PM
  #3  
Slowmaro95Z28's Avatar
12 Second Club
 
Joined: Aug 2007
Posts: 387
Likes: 0
From: North Versailles, PA
Default

I've only done long tubes but most people take around 8 - 10 hours first time. Make sure you anti seize the header bolts before putting them in.
Reply
Old Sep 22, 2007 | 05:55 PM
  #4  
Pntbll309's Avatar
Thread Starter
11 Second Club
15 Year Member
iTrader: (33)
 
Joined: Nov 2006
Posts: 926
Likes: 0
From: Colorado Springs
Default

Originally Posted by Slowmaro95Z28
I've only done long tubes but most people take around 8 - 10 hours first time. Make sure you anti seize the header bolts before putting them in.
Oh for sure, and the plugs...What gap does most you all go on some Tr55's? mods in sig.
Reply
Old Sep 22, 2007 | 10:08 PM
  #5  
AR15 guy's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Sep 2007
Posts: 610
Likes: 0
From: Barboursville, WV
Default

I have more mods than you and I am running .050 gap with those plugs. Seems fine to me.

Power tools to remove the bolts that connect the manifold to the y pipe are a life saver. Also a electric saw is nice to cut the y pipe off.

The pass side LT header is a PITA if it has the egr and air tube. Without them they are pretty easy really. Slid right in.
Reply
Old Sep 22, 2007 | 11:20 PM
  #6  
Pntbll309's Avatar
Thread Starter
11 Second Club
15 Year Member
iTrader: (33)
 
Joined: Nov 2006
Posts: 926
Likes: 0
From: Colorado Springs
Default

I gapped mine at .044 is that going to be ok?
Reply
Old Sep 23, 2007 | 01:40 AM
  #7  
Pntbll309's Avatar
Thread Starter
11 Second Club
15 Year Member
iTrader: (33)
 
Joined: Nov 2006
Posts: 926
Likes: 0
From: Colorado Springs
Default

5 hours....Got the drivers side done, plugs and all, and 3 bolts from the pass. side manifold. Im done for the night. There are some header bolts on the pass. side that just ******* suck ***.Any pointers to get the first and last bolts out? Ive been hosing them in PB break free.
Reply
Old Sep 23, 2007 | 02:30 AM
  #8  
Slowmaro95Z28's Avatar
12 Second Club
 
Joined: Aug 2007
Posts: 387
Likes: 0
From: North Versailles, PA
Default

Can't remember what I did but I remember those bolts being a PITA. 5 hours honestly isn't bad for your first time. People usually don't think ahead about stuck bolts and other things that hold you up for a few hours. Good luck and I want to hear a sound clip when this is done.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-1

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-2

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-3

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-4

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-5

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-6

10 Camaros You Should Never Buy

 
story-7

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-8

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
story-9

10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

 Verdad Gallardo
Old Sep 23, 2007 | 03:11 AM
  #9  
Pntbll309's Avatar
Thread Starter
11 Second Club
15 Year Member
iTrader: (33)
 
Joined: Nov 2006
Posts: 926
Likes: 0
From: Colorado Springs
Default

Originally Posted by Slowmaro95Z28
Can't remember what I did but I remember those bolts being a PITA. 5 hours honestly isn't bad for your first time. People usually don't think ahead about stuck bolts and other things that hold you up for a few hours. Good luck and I want to hear a sound clip when this is done.
Yeah I did things a little backwards, but Im on track now. See how them bolts do tomorrow. Ill try and get a sound clip as soon as I can.
Reply
Old Sep 23, 2007 | 03:21 AM
  #10  
ZONES89RS's Avatar
In-Zane Moderator
15 Year Member
iTrader: (25)
 
Joined: Jan 2007
Posts: 11,941
Likes: 33
From: Conroe, Texas
Default

Hell, putting my header bolts in my 95 with the BBK shortys sucked, the 4th and 5th ones back on the driver side just pissed me off. Prolly just because im impatient and barely moving a bolt in one bit at a time is kina agrovating.
Reply
Old Sep 23, 2007 | 02:04 PM
  #11  
Pntbll309's Avatar
Thread Starter
11 Second Club
15 Year Member
iTrader: (33)
 
Joined: Nov 2006
Posts: 926
Likes: 0
From: Colorado Springs
Default

Originally Posted by ZONES89RS
Hell, putting my header bolts in my 95 with the BBK shortys sucked, the 4th and 5th ones back on the driver side just pissed me off. Prolly just because im impatient and barely moving a bolt in one bit at a time is kina agrovating.
I agree, I had a friend come help for the last little bit, we are going to get started on in today here soon. Time to get annoyed with some bolts!
Reply
Old Sep 24, 2007 | 08:48 PM
  #12  
Pntbll309's Avatar
Thread Starter
11 Second Club
15 Year Member
iTrader: (33)
 
Joined: Nov 2006
Posts: 926
Likes: 0
From: Colorado Springs
Default

Well after taking a break, Ive gotten back to it but have a few Q's. The mount for the ALT that bolts to where the stock exhaust manifold was, does it have to be there? It doesnt look like a bolt will fit over my header flange. The extra holes where the exhaust manifolds had an extra 2 holes on each side, do those have to be plugged?And my dipstick wont go in now,it lines up then no movement. Do I have something missing, or what?
Reply
Old Sep 25, 2007 | 10:03 AM
  #13  
phatkat's Avatar
On The Tree
 
Joined: Feb 2003
Posts: 114
Likes: 0
From: Bremerton, Wa
Angry

I wish someone would respond I am having the same problems putting BBK shortys on my 97 lt1. I know I had to can one of the alternator brackets because that stud would not go through my header flange but there are three other mounting points and I drove mine after that and it was fine. As for those extra bolt holes in your fange the best thing to plug those up with would be bolts, my headers would not get a good seal to my heads without those extra bolts go figure. I still have a pretty nasty exhaust leak but I think it is coming from EGR and DS cat so I ordered a new gasket for the cat and that should be in today so I will let you know how that goes.
Reply
Old Sep 26, 2007 | 03:43 PM
  #14  
harner's Avatar
Launching!
15 Year Member
Photogenic
Liked
iTrader: (16)
 
Joined: Jul 2007
Posts: 239
Likes: 3
From: New Ringgold, PA
Default

I just put hooker lt's on my 94 lt1. The back bolt on the pass. side is a PITA. The headers had to go in from the bottom (remove starter and possibly steering linkage) with no issues. However, the o2 sensors on the headers don't look like they'll reach the plug (at least on the pass. side). What's up with that? And the AIR needs to come out because it's causing a serious vacuum leak! Otherwise everything went okay. And my y-pipe basically deletes the cat (I wanted it gone anyway), how are you keeping yours?
Reply
Old Sep 26, 2007 | 03:55 PM
  #15  
kinglt-1's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (26)
 
Joined: Jul 2005
Posts: 5,892
Likes: 253
From: Ft. Wayne, IN
Default

Originally Posted by harner
I just put hooker lt's on my 94 lt1. The back bolt on the pass. side is a PITA. The headers had to go in from the bottom (remove starter and possibly steering linkage) with no issues. However, the o2 sensors on the headers don't look like they'll reach the plug (at least on the pass. side). What's up with that? And the AIR needs to come out because it's causing a serious vacuum leak! Otherwise everything went okay. And my y-pipe basically deletes the cat (I wanted it gone anyway), how are you keeping yours?
Call jegs and order the o2 extensions. Also I recommend using bandclamps with an impact!
Reply
Old Sep 26, 2007 | 04:13 PM
  #16  
kinglt-1's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (26)
 
Joined: Jul 2005
Posts: 5,892
Likes: 253
From: Ft. Wayne, IN
Default

Originally Posted by Pntbll309
Well after taking a break, Ive gotten back to it but have a few Q's. The mount for the ALT that bolts to where the stock exhaust manifold was, does it have to be there? It doesnt look like a bolt will fit over my header flange. The extra holes where the exhaust manifolds had an extra 2 holes on each side, do those have to be plugged?And my dipstick wont go in now,it lines up then no movement. Do I have something missing, or what?
Take a break, it will take a few tries to get the dipstick back in but it will go. The holes dont need to be plugged. my alternator never has mounted to the exhaust manifold not sure what you are saying.
Reply
Old Sep 26, 2007 | 04:14 PM
  #17  
kinglt-1's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (26)
 
Joined: Jul 2005
Posts: 5,892
Likes: 253
From: Ft. Wayne, IN
Default

Originally Posted by Pntbll309
Oh for sure, and the plugs...What gap does most you all go on some Tr55's? mods in sig.
Gap at .45
Reply
Old Sep 26, 2007 | 04:32 PM
  #18  
blk97z28's Avatar
TECH Fanatic
iTrader: (3)
 
Joined: Jan 2006
Posts: 1,801
Likes: 0
From: Lincoln, Nebraska
Default

For that PS ALT brakcet bolt I am having a good friend of mine bring some redi-bolt down and then I can make that bracket work for the ALT bracket.
Reply
Old Sep 26, 2007 | 09:09 PM
  #19  
neverenuff's Avatar
On The Tree
iTrader: (25)
 
Joined: Jan 2007
Posts: 129
Likes: 0
From: I-20
Default

Originally Posted by Pntbll309
Well after taking a break, Ive gotten back to it but have a few Q's. The mount for the ALT that bolts to where the stock exhaust manifold was, does it have to be there? It doesnt look like a bolt will fit over my header flange. The extra holes where the exhaust manifolds had an extra 2 holes on each side, do those have to be plugged?And my dipstick wont go in now,it lines up then no movement. Do I have something missing, or what?
for your dipstick problem just buff it a little bit with some sand paper or buffing wheel.
Reply
Old Sep 26, 2007 | 09:20 PM
  #20  
Pntbll309's Avatar
Thread Starter
11 Second Club
15 Year Member
iTrader: (33)
 
Joined: Nov 2006
Posts: 926
Likes: 0
From: Colorado Springs
Default

That I will do, I took the past 2 days off, havent felt up to it realy. I got 3 plugs, dipstick, air tube, and I think thats it, so maybe a few hours of work. Just gotta get off my **** and do it. While I was down there I gutted my cat too. Hopefully shell put out a nice rumble.
Reply



All times are GMT -5. The time now is 05:11 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE