LS1TECH - Camaro and Firebird Forum Discussion

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

how to identify ls6 heads

Thread Tools
 
Search this Thread
 
Old Sep 23, 2012 | 11:38 AM
Share
  #1  
98LS1driver's Avatar
98LS1driver
Thread Starter
On The Tree
iTrader: (2)
 
Joined: Apr 2007
Posts: 178
Likes: 0
From: SC
Default how to identify ls6 heads
I'm in the market for a set of Ls6 heads to go on my trans am bit I've been looking and seeing all diff types of casting numbers matter of fact I saw a set that said Ls6 with casting number 243 but my friends 5.3 truck has 243s? Just wanting a clear way to identify Ls6 heads thanks In advance
Reply
0
Old Sep 23, 2012 | 11:39 AM
Share
  #2  
BudRacing's Avatar
BudRacing
TECH Junkie
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (3)
 
Joined: Dec 2006
Posts: 3,542
Likes: 6
From: Dunwoody, GA
Default
They're 243's as you saw.
Reply
0
Old Sep 23, 2012 | 11:43 AM
Share
  #3  
96capricemgr's Avatar
96capricemgr
11 Second Club
iTrader: (1)
 
Joined: Sep 2004
Posts: 11,975
Likes: 15
Default
The casting is the same. True LS6 heads got hollow/sodium filled valves which are lighter but I would only pay the premium for those if going pretty aggressive on the valvetrain.
Reply
0
Old Sep 23, 2012 | 01:39 PM
Share
  #4  
98LS1driver's Avatar
98LS1driver
Thread Starter
On The Tree
iTrader: (2)
 
Joined: Apr 2007
Posts: 178
Likes: 0
From: SC
Default
so as long as i get a set of 243's im in the good? i dont plan on going bigger than the tsp 228r cam with the heads and mabey a mild gasket match port
Reply
0
Old Sep 23, 2012 | 04:00 PM
Share
  #5  
96capricemgr's Avatar
96capricemgr
11 Second Club
iTrader: (1)
 
Joined: Sep 2004
Posts: 11,975
Likes: 15
Default
At that I don't think paying the premium for true LS6 heads with the Hollow/sodium filled valves is worth it. FWIW the 799 head is the same ports and chamber just another vendor making them so now you have two casting numbers you can look for.
Reply
0
Tags
Back to Subforum
Generation III Internal Engine
View Next Unread
6.0 LQ4 Options




Advanced Search

All times are GMT -5. The time now is 06:46 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
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-5
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-6
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-7
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-8
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-9
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