New LS1 Owners - Newbie Tech Basic Technical Questions & Advice
Sponsored by:
Sponsored by:

Back to the basic questions...

Old 03-05-2012, 06:56 PM
  #1  
11 Second Club
Thread Starter
iTrader: (15)
 
LASTOFTHEBREED02T/A's Avatar
 
Join Date: Nov 2010
Location: Austin, TX
Posts: 881
Likes: 0
Received 0 Likes on 0 Posts

Default Back to the basic questions...

Hello all, been a while...

I have a buddy that is selling me his set of 5.3 heads. I was originally looking for a set of ls6 ones and have them Ported and polished, But he says the 5.3 ported and polished would be alot better due to compression.
Im not very familiar with the whole heads set up, so i come to you guys to get some guidance, and what will i run into with either ls6 heads or a 5.3, both being ported and polished.

Also, will my stock heads worth doing a polish and port job? Incase i dont go with either the ones mentioned.

Thx,
Old 03-05-2012, 08:13 PM
  #2  
TECH Senior Member
 
garygnu's Avatar
 
Join Date: Feb 2009
Posts: 5,446
Received 4 Likes on 4 Posts

Default

what are the head casting numbers of the heads your friend is selling ,and the of the heads you currently have ?have you got a quote for ported heads ?also you will need a valve job.you can get some 5.3 heads for free.have you looked at TSP heads ?it mite be cheaper then paying some one to port your heads.
Old 03-05-2012, 09:06 PM
  #3  
TECH Addict
iTrader: (88)
 
Burken01's Avatar
 
Join Date: Mar 2005
Location: Anaheim, Ca
Posts: 2,923
Likes: 0
Received 13 Likes on 12 Posts

Default

you can mill ls6 heads for $60 bucks to match compression of 5.3 heads or beat them in that department...

plus the ls6 heads flow very well for stock castings already..
Old 03-06-2012, 09:30 AM
  #4  
11 Second Club
Thread Starter
iTrader: (15)
 
LASTOFTHEBREED02T/A's Avatar
 
Join Date: Nov 2010
Location: Austin, TX
Posts: 881
Likes: 0
Received 0 Likes on 0 Posts

Default

I'm confused again. Thought it b cheaper to just pnp some 5.3 n be good. Ill b calling tsp today n see options.

On the other hand, another trusted buddy, is selling his 3800 vig stall. With trans cooler, for 400. With one free flash by vig that ends in nov.
He upgraded to a 400, after his clutch pack when out n ruined his trans.
Shop claims stall is good not damaged. But recommend flush to clean out particles.

Should i jump on that deal, and would 3800 b too much for my set up?

Where's lemons12 btwI'm confused again. Thought it b cheaper to just pnp some 5.3 n be good. Ill b calling tsp today n see options.

On the other hand, another trusted buddy, is selling his 3800 vig stall. With trans cooler, for 400. With one free flash by vig that ends in nov.
He upgraded to a 400, after his clutch pack when out n ruined his trans.
Shop claims stall is good not damaged. But recommend flush to clean out particles.

Should i jump on that deal, and would 3800 b too much for my set up?

Where's lemons12 btw??
Old 03-06-2012, 09:31 AM
  #5  
11 Second Club
Thread Starter
iTrader: (15)
 
LASTOFTHEBREED02T/A's Avatar
 
Join Date: Nov 2010
Location: Austin, TX
Posts: 881
Likes: 0
Received 0 Likes on 0 Posts

Default

I'm confused again. Thought it b cheaper to just pnp some 5.3 n be good. Ill b calling tsp today n see options.

On the other hand, another trusted buddy, is selling his 3800 vig stall. With trans cooler, for 400. With one free flash by vig that ends in nov.
He upgraded to a 400, after his clutch pack when out n ruined his trans.
Shop claims stall is good not damaged. But recommend flush to clean out particles.

Should i jump on that deal, and would 3800 b too much for my set up?

Where's lemons12 btw?
Old 03-06-2012, 09:33 AM
  #6  
11 Second Club
Thread Starter
iTrader: (15)
 
LASTOFTHEBREED02T/A's Avatar
 
Join Date: Nov 2010
Location: Austin, TX
Posts: 881
Likes: 0
Received 0 Likes on 0 Posts

Default

Doing this on Phn sucks...
Sorry for double post.
Old 03-06-2012, 08:18 PM
  #7  
TECH Addict
iTrader: (88)
 
Burken01's Avatar
 
Join Date: Mar 2005
Location: Anaheim, Ca
Posts: 2,923
Likes: 0
Received 13 Likes on 12 Posts

Default

I was going to go with a 3600 stall for my ls6 heads/custom cam set up... so 3800 seems right on par depending on gears...

do you want quarter mile performance?, highway top speed, or in the middle..
Old 03-06-2012, 08:21 PM
  #8  
11 Second Club
Thread Starter
iTrader: (15)
 
LASTOFTHEBREED02T/A's Avatar
 
Join Date: Nov 2010
Location: Austin, TX
Posts: 881
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by Burken01
I was going to go with a 3600 stall for my ls6 heads/custom cam set up... so 3800 seems right on par depending on gears...

do you want quarter mile performance?, highway top speed, or in the middle..
In the middle, Im planning on doing lots of track and highway runs...
Gears, not sure. My ride is the 02, dont know what they came with
Old 03-06-2012, 08:34 PM
  #9  
TECH Addict
iTrader: (88)
 
Burken01's Avatar
 
Join Date: Mar 2005
Location: Anaheim, Ca
Posts: 2,923
Likes: 0
Received 13 Likes on 12 Posts

Default

2002 t56 came with 342 gears, yours might be 323.

its a trans am right? check your door jam and I believe GU5 is 323 gears like i had, 273 gears is GU3...

342 gears would be a good balance, I was going with 373 gears to match my 3600 stall
Old 03-06-2012, 08:35 PM
  #10  
TECH Addict
iTrader: (88)
 
Burken01's Avatar
 
Join Date: Mar 2005
Location: Anaheim, Ca
Posts: 2,923
Likes: 0
Received 13 Likes on 12 Posts

Default

but I wanted more stop light to stop light action, because in orange county, ca there is too much traffic on the freeway to ever go over 65 unless your driving at midnight...
Old 03-06-2012, 08:49 PM
  #11  
11 Second Club
Thread Starter
iTrader: (15)
 
LASTOFTHEBREED02T/A's Avatar
 
Join Date: Nov 2010
Location: Austin, TX
Posts: 881
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by Burken01
2002 t56 came with 342 gears, yours might be 323.

its a trans am right? check your door jam and I believe GU5 is 323 gears like i had, 273 gears is GU3...

342 gears would be a good balance, I was going with 373 gears to match my 3600 stall
I have 323... Wasnt planning on changing them, thought they would b ok with a 3800 stall.

With this size stall, how much top speed will i sacrificing?
Old 03-06-2012, 10:04 PM
  #12  
TECH Senior Member
 
garygnu's Avatar
 
Join Date: Feb 2009
Posts: 5,446
Received 4 Likes on 4 Posts

Default

some stock 243/799 heads with a good valve job and good springs will make some good power.but if you can afford and want ported heads look at TSP.like stated above you can mill heads for cheap.
Old 03-07-2012, 07:50 AM
  #13  
11 Second Club
Thread Starter
iTrader: (15)
 
LASTOFTHEBREED02T/A's Avatar
 
Join Date: Nov 2010
Location: Austin, TX
Posts: 881
Likes: 0
Received 0 Likes on 0 Posts

Default

I called tsp, they come out to over 1300 with shipping and tax.

There has to be something cheaper.


Thread Tools
Search this Thread

All times are GMT -5. The time now is 10:04 AM.