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

Need help figuring out my heads

Thread Tools
 
Search this Thread
 
Old 03-24-2006, 07:27 PM
  #1  
TECH Regular
Thread Starter
iTrader: (14)
 
squealingtires's Avatar
 
Join Date: Oct 2005
Location: Dayton, Ohio
Posts: 437
Likes: 0
Received 0 Likes on 0 Posts
Default Advanced LS6 head calculation

Ok, my LS6 heads (243 casting) have had extensive machine work done by the previous owner but I don't know everything and I'm trying to get an idea for my piston to valve clearances.

Here's what I know:

62.88cc combustion chambers:
The chambers have were milled to acommidate my 4 inch bore.
11.1:1 CR with the Ross pistons included with the SLP 402 stroker kit.

I need to figure out:

How much have the heads been decked?

Any ideas?

Last edited by squealingtires; 03-25-2006 at 08:38 AM. Reason: clarification
Old 03-25-2006, 07:38 AM
  #2  
TECH Regular
Thread Starter
iTrader: (14)
 
squealingtires's Avatar
 
Join Date: Oct 2005
Location: Dayton, Ohio
Posts: 437
Likes: 0
Received 0 Likes on 0 Posts
Default

bumpity bump bump...
Old 03-25-2006, 11:29 AM
  #3  
TECH Apprentice
 
Ksett's Avatar
 
Join Date: Sep 2005
Posts: 339
Likes: 0
Received 0 Likes on 0 Posts
Default

You can do a rough estimate by using .007 per 1 cc taken off the head. This is going to be dependent on the 62.88 cc being accurate as well. I'm not sure what the LS6 castings start off as maybe 64.5 cc?
Old 03-25-2006, 11:47 AM
  #4  
TECH Regular
Thread Starter
iTrader: (14)
 
squealingtires's Avatar
 
Join Date: Oct 2005
Location: Dayton, Ohio
Posts: 437
Likes: 0
Received 0 Likes on 0 Posts
Default

awesome. anyone know stock combustion chamber volume for year 2004 243 castings?

I was thinking that the since these were taken out to accomidate a 4 inch bore diameter that they would be decked even more. I'm not sure how much volume is gained by changing the bore diamter?
Old 03-25-2006, 05:49 PM
  #5  
TECH Fanatic
iTrader: (1)
 
ssheets's Avatar
 
Join Date: Nov 2003
Location: Gardnerville, NV.
Posts: 1,037
Likes: 0
Received 0 Likes on 0 Posts

Default

64.45cc here are some Specs
Old 03-25-2006, 09:58 PM
  #6  
TECH Regular
Thread Starter
iTrader: (14)
 
squealingtires's Avatar
 
Join Date: Oct 2005
Location: Dayton, Ohio
Posts: 437
Likes: 0
Received 0 Likes on 0 Posts
Default

wow, great resource! Thanks




All times are GMT -5. The time now is 12:00 AM.