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

quick question about gm head gasket

Thread Tools
 
Search this Thread
 
Old Feb 8, 2005 | 09:34 PM
  #1  
jd13's Avatar
Thread Starter
TECH Enthusiast
iTrader: (3)
 
Joined: Nov 2002
Posts: 509
Likes: 0
From: Orlando, FL
Default quick question about gm head gasket

I've got a set of '02 LS6 heads going on my '99 LS1. SDPC lists two different gaskets. One for 97-01 LS1/LS6s and one for '02 and up LS1/LS6s. Part numbers are 12498543 and 12498544 respectively.

Now which one would I use?
Reply
Old Feb 9, 2005 | 08:29 AM
  #2  
NHRATA01's Avatar
TECH Fanatic
20 Year Member
Liked
Loved
iTrader: (10)
 
Joined: Jan 2002
Posts: 1,802
Likes: 36
From: Dutchess, New York
Default

You can use the '02+ MLS gaskets. Some of the earlier heads on the 97-98 cars have a notch on them, which require a gasket with a matching notch. The later 241 castings don't have the notch, thus you will be fine with the '02+ gaskets. If you do a search, I remember someone in a thread posted pics of said notch.
Reply




All times are GMT -5. The time now is 02:04 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