Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Gasket question

Thread Tools
 
Search this Thread
 
Old Nov 5, 2011 | 11:05 PM
  #1  
Adam86's Avatar
Thread Starter
TECH Resident
iTrader: (10)
 
Joined: May 2008
Posts: 882
Likes: 0
From: Faribault, MN
Default Gasket question

Hey guys, I'm in the process of turbocharging my '98 TA and have to take off the timing cover to weld in a bung for an oil return line. The motor was completely forged and rebuilt about 1500 miles ago and I had a couple of questions.

1. Will I need to replace the timing cover gasket when I put cover back on? I put on a new one when the motor was rebuilt.

2. Will I need to replace the water pump gaskets? I know '98s have the crappy graphite ones but I upgraded to the steel and rubber ones when I put the pump on again a few months ago.

3. Does the front crank seal need to be replaced?

I don't mind having to replace any of these if I risk having leaks once everything goes back together, but money is money and I like to save it where I can! Thanks guys!
Reply
Old Nov 6, 2011 | 07:39 AM
  #2  
ShevrolayZ28's Avatar
TECH Addict
iTrader: (4)
 
Joined: May 2005
Posts: 2,318
Likes: 1
From: Massachusetts
Default

I've had good luck with reusing the metal gaskets for the water pump and timing cover, and I suppose if you don't damage the oil seal in the process of removing it (for when the welding is done) you could reuse it, too, but I'd have an extra on hand. Good luck.
Reply
Old Nov 6, 2011 | 08:35 AM
  #3  
Adam86's Avatar
Thread Starter
TECH Resident
iTrader: (10)
 
Joined: May 2008
Posts: 882
Likes: 0
From: Faribault, MN
Default

Cool, thanks! I'm an idiot for not doing this when the motor was apart...
Reply
Old Nov 6, 2011 | 08:47 AM
  #4  
Adam86's Avatar
Thread Starter
TECH Resident
iTrader: (10)
 
Joined: May 2008
Posts: 882
Likes: 0
From: Faribault, MN
Default

One more quick question... I put a new LS2 timing chain when the motor was rebuilt. Do you think this will be an okay chain for FI? I'm planning on going up in the 600-650rwhp range. Since I have the cover off this would be the perfect time to throw in a different chain if you guys think I should.
FWIW I'm just running a lil ol' LS6 Z06 cam. Look at my build thread if you need any more details on the motor.

Last edited by Adam86; Nov 6, 2011 at 08:59 AM.
Reply
Old Nov 6, 2011 | 12:04 PM
  #5  
Cooldude5231's Avatar
Launching!
iTrader: (6)
 
Joined: Sep 2011
Posts: 234
Likes: 0
From: Florida
Default

id definatly go ahead and replace all the gaskets before you put it back together.
if not, 10,000 miles down the road youll be doing it again.
Reply
Old Nov 6, 2011 | 01:22 PM
  #6  
NY02ws6's Avatar
On The Tree
 
Joined: Oct 2011
Posts: 132
Likes: 0
From: 20 minutes from the Valley...
Default

^^wrong, the metal gaskets on the w/p and cover can be reused, just be careful not to damage the rubber portions and you will be fine, I would recommend replacing the crank seal however, you just cant always tell if you damaged the lip on disassembly and the balancer is enough of a PITA that i wouldn't want to have to redo it
Reply
Old Nov 6, 2011 | 06:32 PM
  #7  
Adam86's Avatar
Thread Starter
TECH Resident
iTrader: (10)
 
Joined: May 2008
Posts: 882
Likes: 0
From: Faribault, MN
Default

Thanks guys! I ordered a new crank seal and balancer bolt so we should be good to go! Any comments on the timing chain?
Reply
Old Nov 7, 2011 | 10:24 AM
  #8  
NY02ws6's Avatar
On The Tree
 
Joined: Oct 2011
Posts: 132
Likes: 0
From: 20 minutes from the Valley...
Default

With that cam I'm thinkin you should be alright, but I would consider asking in the FI section to make sure, those guys should have a better idea...cam wise you will be ok but I don't know if boost would add anymore stress??
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 Nov 7, 2011 | 10:27 AM
  #9  
thunderstruck507's Avatar
11 Second Club
iTrader: (18)
 
Joined: Mar 2008
Posts: 8,358
Likes: 27
From: Northwest AR
Default

I usually replace the water pump gaskets for peace of mind, but the timing cover gasket I reuse with a very very thin film of RTV.

*knock on wood* no leaks for me
Reply
Old Nov 7, 2011 | 10:32 AM
  #10  
NY02ws6's Avatar
On The Tree
 
Joined: Oct 2011
Posts: 132
Likes: 0
From: 20 minutes from the Valley...
Default

I reused original gaskets w/60k on them, only put a little RTV where the corners of the cover, the oil pan and block all meet...three days of tuning after work, several 3rd gear highway pulls and 2500 mi later no leaks
Reply




All times are GMT -5. The time now is 12:40 AM.

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