LS1TECH - Camaro and Firebird Forum Discussion

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

ls1 heads casting# JO49

Thread Tools
 
Search this Thread
 
Old 12-12-2007, 01:10 AM
  #1  
10 Second Club
Thread Starter
iTrader: (53)
 
geovett's Avatar
 
Join Date: Apr 2007
Location: So.Ca.(I.E.)
Posts: 409
Likes: 0
Received 1 Like on 1 Post

Question ls1 heads casting# JO49
i bought a set of heads ported and milled for my 01z28 with a casting #j049 does anybody know anything about them? are they the 2.02 intake v..thanx.
geovett is offline  
Reply Like
Old 12-12-2007, 08:14 AM
  #2  
TECH Addict
iTrader: (31)
 
sroach20's Avatar
 
Join Date: Dec 2002
Location: houston, Texas
Posts: 2,318
Likes: 0
Received 1 Like on 1 Post
Default
thats not the casting number. your looking for a 3 digit number. 241, 243, 317, etc....
sroach20 is offline  
Reply Like
Old 12-12-2007, 10:49 AM
  #3  
10 Second Club
Thread Starter
iTrader: (53)
 
geovett's Avatar
 
Join Date: Apr 2007
Location: So.Ca.(I.E.)
Posts: 409
Likes: 0
Received 1 Like on 1 Post

Default
Originally Posted by sroach20
thats not the casting number. your looking for a 3 digit number. 241, 243, 317, etc....
hey thanx my bad!!! there 853's
geovett is offline  
Reply Like
Old 12-12-2007, 07:59 PM
  #4  
Staging Lane
 
cam1999's Avatar
 
Join Date: Aug 2006
Location: Suffolk, NY
Posts: 51
Likes: 0
Received 0 Likes on 0 Posts
Default
in stock form

2.00 in intakes
1.55 in exhaust
66.67 cc


Stock LS1 Heads
Chamber 66.67 cc 0.100 0.200 0.300 0.400 0.500 0.550 0.600
Intake 200 cc 67 122 178 215 219 223 227
Exhaust 70 cc 52 97 133 156 170 176 180
Valve Diameter Intake 2.00"
Valve Diameter Exhaust 1.55"
Part Number 12559853 (1997-98)
12559853 (1999-00)
12564241 (2001-03)
Last edited by cam1999; 12-12-2007 at 08:08 PM.
cam1999 is offline  
Reply Like
Back to Subforum
Generation III Internal Engine
View Next Unread
If the valves have hit the pistons..




Advanced Search

All times are GMT -5. The time now is 09:13 PM.