Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

Factory LS3 cam with Cathedral port heads

Thread Tools
 
Search this Thread
 
Old 01-28-2011, 01:56 PM
  #1  
Rockstar
Thread Starter
iTrader: (15)
 
Johnny-LT1-runner's Avatar
 
Join Date: Feb 2009
Location: I'm on a boat! in Shreveport, La
Posts: 1,582
Likes: 0
Received 0 Likes on 0 Posts
Default Factory LS3 cam with Cathedral port heads

Does anyone have any experience with running a factory LS3 cam (204/211 .551/.525 117) combined with gen III cathedral port heads?
Old 01-28-2011, 02:46 PM
  #2  
TECH Veteran
iTrader: (21)
 
1CAMWNDR's Avatar
 
Join Date: Nov 2001
Posts: 4,247
Likes: 0
Received 2 Likes on 2 Posts

Default

That wouldn't be worth the effort to swap it.
Old 01-28-2011, 03:22 PM
  #3  
FormerVendor
iTrader: (1)
 
ThunderStruk's Avatar
 
Join Date: Apr 2004
Location: baton rouge
Posts: 325
Likes: 0
Received 1 Like on 1 Post
Default

If I recall correctly, that is basically a hybrid of an '01 and '02-up LS6 cam, so yes, it will work fine. You just need to make sure you are using a front cover and timing set with the appropriate cam sensor provisions since the Gen IV cam will not have a reluctor on the rear of the cam.
Old 01-28-2011, 03:56 PM
  #4  
12 Second Club
iTrader: (10)
 
disc0monkey's Avatar
 
Join Date: Jan 2009
Location: 5.0
Posts: 1,302
Likes: 0
Received 0 Likes on 0 Posts
Default

why not pick up a ls7/9 cam for 100 bucks?
Old 01-28-2011, 04:54 PM
  #5  
Rockstar
Thread Starter
iTrader: (15)
 
Johnny-LT1-runner's Avatar
 
Join Date: Feb 2009
Location: I'm on a boat! in Shreveport, La
Posts: 1,582
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by 1CAMWNDR
That wouldn't be worth the effort to swap it.
Well I'm putting together the engine right now from a fresh shortblock, and I happen to have a stock cam out of an LS3 and a set of 5.3 cathedral port heads. The engine block itself is a gen IV aluminum 5.3.

Originally Posted by ThunderStruk
If I recall correctly, that is basically a hybrid of an '01 and '02-up LS6 cam, so yes, it will work fine. You just need to make sure you are using a front cover and timing set with the appropriate cam sensor provisions since the Gen IV cam will not have a reluctor on the rear of the cam.
That's one issue that has already been found out, that I will need a different front cover than a gen III. I wasn't sure how well the cam would run with the older heads because of the higher difference in degrees between intake and exhaust.

Originally Posted by disc0monkey
why not pick up a ls7/9 cam for 100 bucks?
What are the specs and advantages of the LS7 and LS9 cams compared to the LS3?
Old 01-28-2011, 05:59 PM
  #6  
FormerVendor
iTrader: (15)
 
SNLPerformance's Avatar
 
Join Date: Feb 2008
Location: Ft. Worth, TX
Posts: 3,337
Likes: 0
Received 2 Likes on 2 Posts

Default

If I was going to choose a factory cam to install in a 5.3 that would be the one
Old 01-28-2011, 10:50 PM
  #7  
Teching In
 
JustAnotherLS2's Avatar
 
Join Date: Sep 2010
Location: Ft.Lauderdale, FL
Posts: 46
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by disc0monkey
why not pick up a ls7/9 cam for 100 bucks?
Why not just do it the right away.....
Old 01-29-2011, 02:54 PM
  #8  
12 Second Club
iTrader: (10)
 
disc0monkey's Avatar
 
Join Date: Jan 2009
Location: 5.0
Posts: 1,302
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by JustAnotherLS2
Why not just do it the right away.....
what would that be?



Quick Reply: Factory LS3 cam with Cathedral port heads



All times are GMT -5. The time now is 03:08 PM.