Pontiac G8 2008-09 & Chevrolet SS 2014+ LSX based RWD 4-door sedans

G8 GT head casting numbers post your please. this is interesting

Thread Tools
 
Search this Thread
 
Old 07-13-2010, 09:50 PM
  #1  
TECH Enthusiast
Thread Starter
iTrader: (13)
 
SREETRACEGUY's Avatar
 
Join Date: Apr 2007
Location: Phiadelphia Ms. to Houston Tx.
Posts: 605
Likes: 0
Received 0 Likes on 0 Posts
Default G8 GT head casting numbers post your please. this is interesting

ok the G8 GTs heads casting numbers should be 5364 ................
However the guy that brought this to my attention works a shop and sees several of them and his wifes Blue G8 GT had 0821 heads from the factory. This is the same castings found on 2010 camaro M6 only the A6 2010 camaros have 0823 castings. the heads on his G8 GT has the larger exaust valves but doesn't have the lighter valves found in the camaros or GXPs.......

My car is Blue and I have the 0821 castings factory. I am wondering who all has these castings and what color your G8 is...... THANKS TO ALL THAT POST YOUR CASTINGS
Old 07-14-2010, 12:42 PM
  #2  
Launching!
iTrader: (18)
 
LPTXZ28's Avatar
 
Join Date: Sep 2005
Location: Pasadena, Texas
Posts: 240
Likes: 0
Received 0 Likes on 0 Posts

Default

My wife's is Stryker Blue 2009 GT with the 0821 castings
Old 07-14-2010, 01:06 PM
  #3  
Banned
 
Charley@FMS's Avatar
 
Join Date: Oct 2008
Location: LOUISIANA
Posts: 117
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by SREETRACEGUY
ok the G8 GTs heads casting numbers should be 5364 ................
However the guy that brought this to my attention works a shop and sees several of them and his wifes Blue G8 GT had 0821 heads from the factory. This is the same castings found on 2010 camaro M6 only the A6 2010 camaros have 0823 castings. the heads on his G8 GT has the larger exaust valves but doesn't have the lighter valves found in the camaros or GXPs.......

My car is Blue and I have the 0821 castings factory. I am wondering who all has these castings and what color your G8 is...... THANKS TO ALL THAT POST YOUR CASTINGS
The valves are the same size, exhaust port is larger.
Old 07-14-2010, 04:56 PM
  #4  
TECH Enthusiast
Thread Starter
iTrader: (13)
 
SREETRACEGUY's Avatar
 
Join Date: Apr 2007
Location: Phiadelphia Ms. to Houston Tx.
Posts: 605
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Charley@FMS
The valves are the same size, exhaust port is larger.
got ya lol i miss read your PM but still thats cool stuff
Old 07-14-2010, 05:48 PM
  #5  
TECH Fanatic
iTrader: (1)
 
Juiced2000SS's Avatar
 
Join Date: Mar 2005
Location: Fort Wayne, IN
Posts: 1,237
Likes: 0
Received 0 Likes on 0 Posts
Default

Mine also has 0821, and it is silver.
Old 07-15-2010, 12:36 PM
  #6  
Banned
 
Charley@FMS's Avatar
 
Join Date: Oct 2008
Location: LOUISIANA
Posts: 117
Likes: 0
Received 0 Likes on 0 Posts
Default

This is very interesting!!!
Old 07-15-2010, 07:22 PM
  #7  
12 Second Club
 
familycaronROIDS!'s Avatar
 
Join Date: Sep 2009
Location: San Diego, CA
Posts: 49
Likes: 0
Received 0 Likes on 0 Posts
Default

5364 here..
Old 07-16-2010, 09:24 PM
  #8  
TECH Veteran
iTrader: (19)
 
2002_Z28_Six_Speed's Avatar
 
Join Date: Aug 2005
Location: Wash, DC
Posts: 4,539
Likes: 0
Received 1 Like on 1 Post

Default

Strange. Guess us GXP guys dont have such variety!
Old 07-16-2010, 09:37 PM
  #9  
10 Second Club
iTrader: (4)
 
RickClarke23's Avatar
 
Join Date: Oct 2006
Location: Bishop,Texas
Posts: 201
Likes: 0
Received 0 Likes on 0 Posts

Default

5364 here 09 MGM
Old 07-18-2010, 08:08 PM
  #10  
8 Second Club
iTrader: (13)
 
SLOW SEDAN's Avatar
 
Join Date: Jan 2010
Location: No VA
Posts: 4,025
Received 945 Likes on 701 Posts

Default

5364 here '08 MGM
Old 07-25-2010, 03:48 PM
  #11  
On The Tree
iTrader: (3)
 
Blk02Ls1A4's Avatar
 
Join Date: Oct 2005
Location: Myrtle Beach, SC
Posts: 178
Likes: 0
Received 0 Likes on 0 Posts

Default

0821's here.
I am thinking it might be more a function of build date than color. My build date from VIN plaque under the hood is July, 2008.
Old 07-25-2010, 10:18 PM
  #12  
8 Second Club
iTrader: (13)
 
SLOW SEDAN's Avatar
 
Join Date: Jan 2010
Location: No VA
Posts: 4,025
Received 945 Likes on 701 Posts

Default

We had a group of G8's at the track this weekend... seemed all the '09's had the 0821's and the '08's had 5364's.
Old 08-15-2010, 09:42 PM
  #13  
On The Tree
iTrader: (3)
 
NateZQ8's Avatar
 
Join Date: Apr 2007
Location: Iowa
Posts: 133
Likes: 0
Received 0 Likes on 0 Posts
Default

09 White hot............821's.........so which are the more desireable head and why?
Old 09-03-2010, 12:00 PM
  #14  
Teching In
 
parshooter's Avatar
 
Join Date: Apr 2010
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
Default

I have a 09 with 0821.


the 0821 heads are better!!
I only say that because they are on my car.



Quick Reply: G8 GT head casting numbers post your please. this is interesting



All times are GMT -5. The time now is 02:42 PM.