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

lq4 tolerances

Thread Tools
 
Search this Thread
 
Old 08-15-2012, 11:45 AM
  #1  
On The Tree
Thread Starter
iTrader: (10)
 
Quickfrc's Avatar
 
Join Date: Jul 2010
Posts: 116
Likes: 0
Received 0 Likes on 0 Posts

Default lq4 tolerances

Did a quick search and came up with nothing. Im looking for the longblock clearances and specs for the crank thrust, main cap bearing, rod bearing, camshaft thrust.....etc.. Anyone have this? My machine shop didnt have it. Im about to assembke this motor and want everything checked.
Old 08-15-2012, 06:03 PM
  #2  
Staging Lane
 
Z28Drifter348's Avatar
 
Join Date: May 2011
Location: Finleyville
Posts: 69
Likes: 0
Received 0 Likes on 0 Posts
Default

Just a hunch but I'm pretty sure they are the same as the ls1 which should be easier to find info on. The lq9 I'm assuming would be different because of the heavier duty rods but it might be the same as well.
Old 08-15-2012, 11:16 PM
  #3  
TECH Apprentice
iTrader: (21)
 
mcdonald77's Avatar
 
Join Date: Jul 2004
Location: Sedro Woolley, WA
Posts: 341
Likes: 0
Received 1 Like on 1 Post

Default

ask and you shall receive

http://www.pleasurecraft.com/manuals/L510016.pdf
Old 08-16-2012, 02:16 AM
  #4  
12 Second Club
iTrader: (49)
 
bww3588's Avatar
 
Join Date: Sep 2005
Location: Chillicothe/Lima, Ohio
Posts: 8,139
Received 9 Likes on 9 Posts

Default

Clearances from an iron block to an aluminum block will be different because of expansion rates. From the factory, probably not by much, but when building a good higher power engine, it should be set differently.
Old 08-16-2012, 06:26 AM
  #5  
Staging Lane
 
Z28Drifter348's Avatar
 
Join Date: May 2011
Location: Finleyville
Posts: 69
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by bww3588
Clearances from an iron block to an aluminum block will be different because of expansion rates. From the factory, probably not by much, but when building a good higher power engine, it should be set differently.
Did not know this but it makes perfect sense. Thanks for the correction.
Old 08-17-2012, 04:22 PM
  #6  
On The Tree
Thread Starter
iTrader: (10)
 
Quickfrc's Avatar
 
Join Date: Jul 2010
Posts: 116
Likes: 0
Received 0 Likes on 0 Posts

Default

Thank u sir....



Quick Reply: lq4 tolerances



All times are GMT -5. The time now is 09:38 PM.