LS1TECH - Camaro and Firebird Forum Discussion

Forced Induction Superchargers | Turbochargers | Intercoolers

any difference between a 2004 lq9 and a 2005 lq9?

Thread Tools
 
Search this Thread
 
Old 12-06-2013, 10:11 AM
  #1  
TECH Resident
Thread Starter
iTrader: (3)
 
25thhawk's Avatar
 
Join Date: Jul 2003
Posts: 813
Likes: 0
Received 1 Like on 1 Post

Default any difference between a 2004 lq9 and a 2005 lq9?
looking at 2 different motors with similar mileage. Are there any internal differences? Thanks
25thhawk is offline  
Reply Like
Old 12-06-2013, 10:14 AM
  #2  
TECH Senior Member
iTrader: (17)
 
smokeshow's Avatar
 
Join Date: Feb 2009
Location: Detroit
Posts: 6,687
Received 44 Likes on 36 Posts

Default
Could be different rods. Look at the valley cover bolts...10mm means old style rods.
smokeshow is offline  
Reply Like
Old 12-06-2013, 10:16 AM
  #3  
TECH Resident
Thread Starter
iTrader: (3)
 
25thhawk's Avatar
 
Join Date: Jul 2003
Posts: 813
Likes: 0
Received 1 Like on 1 Post

Default
out of curiosity what size valley cover bolts means the new style rods
25thhawk is offline  
Reply Like
Old 12-06-2013, 10:48 AM
  #4  
TECH Senior Member
iTrader: (17)
 
smokeshow's Avatar
 
Join Date: Feb 2009
Location: Detroit
Posts: 6,687
Received 44 Likes on 36 Posts

Default
13mm.
smokeshow is offline  
Reply Like
Old 12-06-2013, 11:06 AM
  #5  
TECH Resident
Thread Starter
iTrader: (3)
 
25thhawk's Avatar
 
Join Date: Jul 2003
Posts: 813
Likes: 0
Received 1 Like on 1 Post

Default
Thanks. I'll check for that. Are you sure that is lq9 parts and not lq4? I've been reading other stuff that says all lq9's have the good rods and lq4's changed in mid 04.
25thhawk is offline  
Reply Like
Old 12-06-2013, 11:08 AM
  #6  
TECH Senior Member
iTrader: (17)
 
smokeshow's Avatar
 
Join Date: Feb 2009
Location: Detroit
Posts: 6,687
Received 44 Likes on 36 Posts

Default
I'm not sure. The LQ9 came out quite a while before the LS2, so I wouldn't think its very likely for it to have those rods. They'd have to go back as far as 2002.
smokeshow is offline  
Reply Like
Old 12-06-2013, 12:22 PM
  #7  
On The Tree
iTrader: (1)
 
nxfirebird's Avatar
 
Join Date: Nov 2003
Location: topeka, ks
Posts: 136
Likes: 0
Received 4 Likes on 2 Posts

Default
there is no difference between the 04 and 05, they probably are from the same run. the LQ9's have the full float rods and flat top pistons, that's why many have got'n away with big power on them.
nxfirebird is offline  
Reply Like

Trending Topics

Old 12-06-2013, 12:40 PM
  #8  
TECH Senior Member
iTrader: (17)
 
smokeshow's Avatar
 
Join Date: Feb 2009
Location: Detroit
Posts: 6,687
Received 44 Likes on 36 Posts

Default
The majority of 2004 engines I've seen have the old rods in them. It was a late model year switch.
smokeshow is offline  
Reply Like
Old 12-06-2013, 12:47 PM
  #9  
TECH Enthusiast
 
Twin turbo c5's Avatar
 
Join Date: Oct 2012
Location: Arkansas
Posts: 581
Likes: 0
Received 0 Likes on 0 Posts
Default
More than likely both are the same. Valley cover will tell if its a new style.
Twin turbo c5 is offline  
Reply Like
Tags
Back to Subforum
Forced Induction
View Next Unread
347/317/ON3 76/E85/16psi=758rwhp/744rwtq




Advanced Search
Quick Reply: any difference between a 2004 lq9 and a 2005 lq9?


Reply Closed Thread Share

All times are GMT -5. The time now is 06:36 AM.