difference between 806 and 853 heads? - LS1TECH

Log In 


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

difference between 806 and 853 heads?

Reply
 
Thread Tools Search this Thread
Old 10-26-2003, 11:57 PM   #1
TECH Apprentice
Thread Starter
 
SSEUL8R's Avatar
 
Join Date: Aug 2003
Location: Dixon, CA
Posts: 335
Default difference between 806 and 853 heads?

Anyone know what the difference is between the heads with 806 casted on them and the ones with 853 casted on them? The board says my 98 should have 853 castings, but there is a big fat 806 casted on it? What does this mean? I couldn't find anything about 806 heads. Thanks guys.
SSEUL8R is offline   Reply With Quote
Old 10-27-2003, 01:39 AM   #2
TECH Apprentice
iTrader: (24)
 
ZLEEPER's Avatar
 
Join Date: Nov 2002
Location: spring, TX
Posts: 350
Default difference

i might be wrong, but i was told that 806 was the casting number used on the 97' ls1 vette heads. maybe your car was assembled with those instead of the 853's.
ZLEEPER is offline   Reply With Quote
Old 10-27-2003, 10:25 AM   #3
LS1Tech Premium Sponsor
iTrader: (3)
 
Richard@WCCH's Avatar
 
Join Date: May 2002
Location: Van Nuys, CA
Posts: 1,853
Default

The 806 heads will have the perimeter valve cover bolt holes and the 853 will have the center bolt valve cover holes. Not much else is different between the two.

Richard
Richard@WCCH is offline   Reply With Quote
Old 10-27-2003, 10:28 AM   #4
TECH Fanatic
 
TVWilkes's Avatar
 
Join Date: May 2003
Location: RainbowCity,Alabama
Posts: 1,281
Default

There is no difference.The #806 and the #853 were made with perimeter bolt valve covers.
TVWilkes is offline   Reply With Quote
Old 10-27-2003, 08:48 PM   #5
TECH Fanatic
 
Tin Indian's Avatar
 
Join Date: Nov 2001
Location: SW Florida
Posts: 1,966
Default

Quote:
Originally Posted by TVWilkes
There is no difference.The #806 and the #853 were made with perimeter bolt valve covers.
And the #241 were the 99+ center bolt LS1 heads
Tin Indian is offline   Reply With Quote
Old 10-27-2003, 09:11 PM   #6
LS1Tech Premium Sponsor
iTrader: (3)
 
Richard@WCCH's Avatar
 
Join Date: May 2002
Location: Van Nuys, CA
Posts: 1,853
Default

Quote:
Originally Posted by TVWilkes
There is no difference.The #806 and the #853 were made with perimeter bolt valve covers.
I've seen over 50 sets of each and have never seen a single 853 casting with perimeter bolt holes. If they did make them, I'd like to know about it. There is a casting number 933 that was on the early C5s and is a perimeter bolt head. Could that be what your thinking of?

Thanks,

Richard
Richard@WCCH is offline   Reply With Quote
Old 10-27-2003, 11:20 PM   #7
TECH Senior Member
iTrader: (25)
 
2xLS1's Avatar
 
Join Date: Nov 2001
Location: Warr Acres, OK
Posts: 5,236
Default

Quote:
Originally Posted by Tin Indian
And the #241 were the 99+ center bolt LS1 heads
My 99 came with 853's, center bolt.
2xLS1 is offline   Reply With Quote
Old 10-28-2003, 06:07 AM   #8
TECH Fanatic
 
Tin Indian's Avatar
 
Join Date: Nov 2001
Location: SW Florida
Posts: 1,966
Default

Quote:
Originally Posted by 2xLS1
My 99 came with 853's, center bolt.
I think your right. The 241 is also a centerbolt. I wonder if the 241s came later than 99?
Tin Indian is offline   Reply With Quote
Old 10-28-2003, 06:17 AM   #9
jrp
SN95 Director
iTrader: (16)
 
jrp's Avatar
 
Join Date: Jul 2003
Location: Valencia, Ca
Posts: 10,754
Default

Quote:
Originally Posted by Tin Indian
I think your right. The 241 is also a centerbolt. I wonder if the 241s came later than 99?
from my understanding the 241's were the 01-02 heads.
jrp is offline   Reply With Quote
Old 10-28-2003, 06:20 AM   #10
TECH Senior Member
iTrader: (7)
 
Brains's Avatar
 
Join Date: Jan 2002
Location: Katy, TX
Posts: 12,760
Default

Quote:
Originally Posted by Richard@WCCH
I've seen over 50 sets of each and have never seen a single 853 casting with perimeter bolt holes. If they did make them, I'd like to know about it. There is a casting number 933 that was on the early C5s and is a perimeter bolt head. Could that be what your thinking of?

Thanks,

Richard
If I ship you a set of Stage II ported 853 perimeter bolt heads, will you ship me a set of Stage II ported LS6's in trade? I can get creative with some numbering
Brains is offline   Reply With Quote
Old 10-28-2003, 11:23 PM   #11
TECH Resident
 
Jabroni's Avatar
 
Join Date: Nov 2002
Location: Orlando
Posts: 857
Default

Quote:
Originally Posted by jrp
from my understanding the 241's were the 01-02 heads.
Correct. 241 is the 2001-2003 casting.
Jabroni is offline   Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Looking for 806's raceman14 Generation III Internal Engine 0 12-21-2014 03:01 AM
806 Heads vs. 241 Heads? HibachiZ28 Generation III Internal Engine 9 06-01-2013 08:31 AM
LS1 339 Head Casting Number? Dyno Generation III Internal Engine 11 03-02-2012 05:59 PM
ls1 heads casting number 853 mario89 New LS1 Owners - Newbie Tech 9 12-11-2005 06:46 PM
Center bolt vs. Perimeter bolt LS1 heads Yelo Generation III Internal Engine 1 03-26-2004 04:49 PM


Tags
806, 853, 933, 98, bolt, camaro, center, centerbolt, chevy, covers, cylinder, fbody, heads, ls1, perimeter, valve

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off



All times are GMT -5. The time now is 03:24 AM.