Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

LS3 Manifold on 317 heads

Thread Tools
 
Search this Thread
 
Old 11-08-2010, 09:07 PM
  #1  
Launching!
Thread Starter
iTrader: (1)
 
TrippyJoey's Avatar
 
Join Date: Jun 2010
Location: Brownsville, TX
Posts: 297
Likes: 0
Received 0 Likes on 0 Posts

Default LS3 Manifold on 317 heads

Anyone tried this before? I heard that this combination might cause vacuum leaks cause the LS3 is meant for rectangular port heads. I was thinking if it they don't seal right try to build a thin plate adapter at the machine shop to seal the intake to the heads better.
Old 11-08-2010, 09:20 PM
  #2  
TECH Apprentice
iTrader: (33)
 
NBM99SS's Avatar
 
Join Date: Mar 2006
Location: St. Louis
Posts: 391
Likes: 0
Received 1 Like on 1 Post

Default

Good luck. Just put a LS6 or LS2 intake on and save all the hassle
Old 11-08-2010, 09:23 PM
  #3  
Launching!
Thread Starter
iTrader: (1)
 
TrippyJoey's Avatar
 
Join Date: Jun 2010
Location: Brownsville, TX
Posts: 297
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by NBM99SS
Good luck. Just put a LS6 or LS2 intake on and save all the hassle
I just don't want to ignore a good deal on a new LS3 intake with fuel rails and 42lb injectors for under $300 shipped. That's why I want to to know if it would work.
Old 11-08-2010, 09:48 PM
  #4  
TECH Resident
iTrader: (3)
 
99 Blue Bird's Avatar
 
Join Date: May 2008
Location: CALI 707
Posts: 832
Likes: 0
Received 2 Likes on 2 Posts
Default

Y dont you just buy the manifold and sell the 317s and pick up a set of l92 heads or ls3 heads? It will make things easier cuz i dont think you be able to make some type of an adapter to fit between the heads and manifold.
Old 11-08-2010, 09:59 PM
  #5  
Launching!
Thread Starter
iTrader: (1)
 
TrippyJoey's Avatar
 
Join Date: Jun 2010
Location: Brownsville, TX
Posts: 297
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by 99 Blue Bird
Y dont you just buy the manifold and sell the 317s and pick up a set of l92 heads or ls3 heads? It will make things easier cuz i dont think you be able to make some type of an adapter to fit between the heads and manifold.
I am planning on buying a pair of L92's but that won't be until maybe February and the engine is going in in December over the holidays. Hopefully by then I'll fine a pair of L92's for a good price earlier.
Old 11-08-2010, 10:28 PM
  #6  
TECH Fanatic
iTrader: (4)
 
180ls1's Avatar
 
Join Date: Jun 2007
Location: San Diego
Posts: 1,528
Likes: 0
Received 1 Like on 1 Post
Default

it will be more of a headache then its worth dont do it.
Old 11-08-2010, 10:32 PM
  #7  
Launching!
Thread Starter
iTrader: (1)
 
TrippyJoey's Avatar
 
Join Date: Jun 2010
Location: Brownsville, TX
Posts: 297
Likes: 0
Received 0 Likes on 0 Posts

Default

I guess the money for the forged pistons will have to go on the L92's oh well at least they flow better. Anyone interested in a pair of 317's then?
Old 11-09-2010, 04:08 PM
  #8  
TECH Resident
iTrader: (3)
 
99 Blue Bird's Avatar
 
Join Date: May 2008
Location: CALI 707
Posts: 832
Likes: 0
Received 2 Likes on 2 Posts
Default

post em for sale in the classifieds section. someone will buy them eventually
Old 11-09-2010, 05:26 PM
  #9  
Launching!
Thread Starter
iTrader: (1)
 
TrippyJoey's Avatar
 
Join Date: Jun 2010
Location: Brownsville, TX
Posts: 297
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by 99 Blue Bird
post em for sale in the classifieds section. someone will buy them eventually
I will as soon as I buy a pair of L92's.
Old 11-09-2010, 06:11 PM
  #10  
9 Second Club
iTrader: (10)
 
thirdgen60's Avatar
 
Join Date: Oct 2008
Location: orion, IL
Posts: 173
Likes: 0
Received 0 Likes on 0 Posts
Default

I just picked up an LS3 intake with injectors and rails from hennessey performance for $215 shipped, i would talk to them.
Old 11-09-2010, 06:20 PM
  #11  
Launching!
Thread Starter
iTrader: (1)
 
TrippyJoey's Avatar
 
Join Date: Jun 2010
Location: Brownsville, TX
Posts: 297
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by thirdgen60
I just picked up an LS3 intake with injectors and rails from hennessey performance for $215 shipped, i would talk to them.
Thanks I will that's better compared to the 299 shipped i found.



Quick Reply: LS3 Manifold on 317 heads



All times are GMT -5. The time now is 10:57 PM.