CorvetteForum - Chevrolet Corvette Forum Discussion

C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

843 head

Thread Tools
 
Search this Thread
 
Old Apr 4, 2007 | 11:12 PM
Share
  #1  
JT Metal's Avatar
JT Metal
Thread Starter
Melting Slicks
10 Year Member
 
Joined: Mar 2006
Posts: 2,026
Likes: 16
St. Jude Donor '12-'13
Default 843 head
Just curious, what does this casting number on an LS1 cylinder head mean. Good or Bad.
Reply
0
Old Apr 5, 2007 | 09:39 AM
Share
  #2  
chaase's Avatar
chaase
Team Owner
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: May 2003
Posts: 23,480
Likes: 9
From: East Meadow NY
St. Jude Donor '12
Default
Originally Posted by JT Metal
Just curious, what does this casting number on an LS1 cylinder head mean. Good or Bad.
nothing other than that it is an LS1 head.
Reply
0
Old Apr 5, 2007 | 09:49 AM
Share
  #3  
Pwrtrip75's Avatar
Pwrtrip75
Racer
 
Joined: Nov 2006
Posts: 380
Likes: 1
From: Janesville Wisconsin
Default
Yea there is other LS1 castings. One has perimeter bolts and one has center bolts for the valve covers. 24X? cant remember off hand, but I have both sets at home.
Reply
0
Old Apr 5, 2007 | 09:54 AM
Share
  #4  
Billdog350's Avatar
Billdog350
Drifting
15 Year Member
 
Joined: Dec 2005
Posts: 1,720
Likes: 3
From: East Hampton CT
Default
873 and 241 are LS1 heads, 243's are LS6.

Early Ls1's were perimeter bolt 873's. Later years had the higher flowing 241's with center bolts.
Reply
0
Old Apr 5, 2007 | 11:55 AM
Share
  #5  
Mike94ZLT1's Avatar
Mike94ZLT1
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2002
Posts: 8,352
Likes: 102
From: In the pit, trying to love someone.
Default
853's were center bolt, pre 241 castings
Reply
0
Old Apr 5, 2007 | 02:46 PM
Share
  #6  
Pwrtrip75's Avatar
Pwrtrip75
Racer
 
Joined: Nov 2006
Posts: 380
Likes: 1
From: Janesville Wisconsin
Default
Originally Posted by Billdog350
873 and 241 are LS1 heads, 243's are LS6.

Early Ls1's were perimeter bolt 873's. Later years had the higher flowing 241's with center bolts.
Thats what i meant....241s. I couldnt remember.
I dont think the flow differences are enough to get excited about.
between the 2 LS1 heads.
Reply
0

Get notified of new replies

To 843 head

Tags
Back to Subforum
C5 Tech
View Next Unread
Airbag Light flashes 5 times when car started




Click for Advanced Search
Reply Closed Thread Share
Forum Jump
Trending Topics

All times are GMT -4. The time now is 09:18 PM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE