Results 1 to 9 of 9
Thread: 806 heads, ported??
-
05-26-2010, 09:46 AM #1
806 heads, ported??
What is the number "806" mean?? I have a friend saying he's selling some ported heads 806, but i'm a noob. What is the diff. between the numbers.
-
05-26-2010, 02:34 PM #2
806 is the casting # of the heads . Its on the front corner . 806 is the worse flowing LS1 head and has perimeter valve cover bolts .They came stock on the 98-99 F bodys . 241's are a little better . I believe they came on 00-02 . 243's are the best of the 3 . 243's in stock , untouched form will add @ 20-25 RWHP over 806's and 241's.
-
05-26-2010, 03:43 PM #3
- Join Date
- Feb 2007
- Location
- San Diego, CA
- Posts
- 5,823
2002 Z28 A4 NBM- Sadly now demodded :(
Actually 806 perimeter bolt heads were only used in 1998 on F-bodies. 241's are the center bolt heads for LS1's. 243's are center bolt and were used on the Vette LS6 engine (along with a different cam).
-
05-29-2010, 09:29 AM #4
I see.......thanks. So even though these 806 are ported, they are not better than stock heads on a 2002 ls1?
-
05-29-2010, 11:13 AM #5
The best place for 806 heads is a scrap yard. Save the money towards 243s. However, with a stock cam , it won't add 25hp.
-
05-31-2010, 06:39 AM #6
Thanks guys. I'll save my money.
-
05-31-2010, 07:02 AM #7
- Join Date
- Oct 2006
- Location
- St. Clair Shores. Michigan
- Age
- 55
- Posts
- 1,602
Navy Blue Metallic- `98 Formula M6 HdTp
You guys are misinformed.
The 806 heads are `97-98 model year specific but are not as bad as people say. In fact the biggest difference is the perimeter bolt valve covers. They were cast differently then the later heads but still have the same port and chamber volume as any other LS1 head. And if there are any flow differences in stock form you would never feel it.
Also any ported head including the 806's is still better then stock.
BTW
`97-98 heads = 806
`99-00 heads = 853 *
`01-02 heads = 241
* some 241's may be found on late production `00 carsLast edited by 9T8W66; 05-31-2010 at 07:06 AM.
Craig
Semi Retired Street Racer
2012 Lava Red Mustang GT Coupe Brembo/3.73's
Build Date 3/17/11, Last Lava Red GT
Gone but not forgoten
NBM `98 Formula M6 HdTp
1 of 1 Build Date 3/12/98
-
05-31-2010, 11:51 AM #8
So 806 (PORTED) will flow better than stock?? Hmm......good to know. 150$ sound like a good deal on some 806 ported heads?
-
05-31-2010, 12:56 PM #9
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
799 Ported Heads ONLY on an LS1
By BBATCAR in forum Internal EngineReplies: 5Last Post: 09-06-2013, 07:57 PM -
AFR heads VS. Ported and beefed up stock heads.
By hutcher04 in forum Internal EngineReplies: 10Last Post: 03-14-2010, 08:27 AM -
LS1 Ported Heads
By 94 Formula in forum Parts For Sale / TradeReplies: 2Last Post: 10-25-2009, 08:55 PM -
F/S Ported 6.0 heads
By knappo_99 in forum Parts For Sale / TradeReplies: 15Last Post: 07-30-2008, 04:59 PM -
AFR heads vs Patriot Heads.. CNC ported
By WARP211 in forum Camaro / SSReplies: 6Last Post: 03-01-2007, 08:51 AM
Bookmarks