Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

Help identify ports on intake and throttle body!

Thread Tools
 
Search this Thread
 
Old Jun 1, 2010 | 02:18 PM
  #1  
2XR95Z28's Avatar
Thread Starter
TECH Fanatic
iTrader: (4)
 
Joined: Jul 2007
Posts: 1,351
Likes: 0
From: Davenport, IA
Default Help identify ports on intake and throttle body!

So i'm in the finishing stages of my turbo 5.3 build in my s10 and trying to figure out what all these open ports are on my throttle body and intake manifold...

First picture is the port on the drivers side on the intake right behind the throttle body... What hooks up to this?
Name:  4.jpg
Views: 31740
Size:  80.4 KB

Second picture is on the drivers side on the TB/intake. the line coming off the steam vents from the heads, the hose that was on the line lead directly to the port on the throttle body, is this correct to hook the hose up there?
Name:  1.jpg
Views: 31655
Size:  66.8 KB

Third picture is a port coming off the throttle body, what does this hook up to?
Name:  2.jpg
Views: 27051
Size:  68.1 KB

Last picture has two ports that i need identified...
Name:  3.jpg
Views: 43891
Size:  78.2 KB

I also have yet to hook up my wastegate and BOV vacuum lines so if they can hook up to any of these open ports please let me know. This is my first LS conversion and the first time i've ever messed with turbo stuff so i'm getting to the point where i need the extra help....

Thanks in advance!!
Reply
Old Jun 1, 2010 | 02:20 PM
  #2  
2XR95Z28's Avatar
Thread Starter
TECH Fanatic
iTrader: (4)
 
Joined: Jul 2007
Posts: 1,351
Likes: 0
From: Davenport, IA
Default

Also i still need to figure out where to hook up my steam vent and which port it is the one for the steam vent? I'm more than likely going to be running a t fitting type deal in one of my radiator hoses from the website jagsthatrun....
Reply
Old Jun 1, 2010 | 03:51 PM
  #3  
Pocket's Avatar
TECH Addict
15 Year Member
iTrader: (22)
 
Joined: Apr 2009
Posts: 2,656
Likes: 149
From: NC
Default

First pic is EVAP solenoid port. Non-emissions swaps cap this

Second is the steam tube going through the TB. If you dont live in the arctic circle you can remove the short hose and cut the ports off the TB. After the first time you bust knuckles across them youll do it anyways. The steam tube needs to get plumbed into the cooling system somewhere. Do a search, theres tons of solutions

Pass intake/TB ports
Upper is metered air into the crank case. Pass side valve cover, front port
Lower on the intake is return. LS1 Fbody's have two ports, one on each valve cover with the inline PCV. Trucks have one port at the rear of the drivers valve cover at the PCV
Reply
Old Jun 1, 2010 | 03:59 PM
  #4  
Speartech's Avatar
9 Second Club/LS1TECH Sponsor
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (14)
 
Joined: Nov 2001
Posts: 1,707
Likes: 33
From: Anderson, Indiana
Default

The first one is the purge solenoid vacuum source--Cap it

The 2nd and 3rd are the steam vents you referred to. Just leave the in and out from the throttle body open. The part of the hose with the factroy squeeze clamp is where you attach the hose that will go to the jagsthatrun "T".

That will let you purge the air bubbles from the head, directly to the return of the radiator.

On the last picture, 1 is the vacuum source for the PCV system and 2 is the fresh air source for the PCV. You can either hookup the PCV hoses and use it as designed, or cap them and go to valve cover breathers.
__________________

91 Z28 LS2 408CI, LS9 Supercharger, LPE GT7 cam, Yank3000, 3450 raceweight.
Latest numbers: 9.71 ET, 141.42 MPH, 1.40 60' , 610 RWHP Mustang Dyno

www.speartech.com
Reply
Old Jun 1, 2010 | 05:32 PM
  #5  
2XR95Z28's Avatar
Thread Starter
TECH Fanatic
iTrader: (4)
 
Joined: Jul 2007
Posts: 1,351
Likes: 0
From: Davenport, IA
Default

I'll be running a vented catch can setup with a -8 fitting coming out of both valvecovers into the catchcan so I'll be ditching the stock pcv setup....

Are any of these ports able to be used for my BOV or wastegate vacuum lines?

thanks for all the help so far btw!!
Reply
Old Jun 1, 2010 | 06:42 PM
  #6  
Pocket's Avatar
TECH Addict
15 Year Member
iTrader: (22)
 
Joined: Apr 2009
Posts: 2,656
Likes: 149
From: NC
Default

You could with adapters to change the size. Teeing into the HVAC port near the MAP sensor is easier
Reply
Old Nov 26, 2014 | 07:17 AM
  #7  
bleeze's Avatar
Teching In
 
Joined: Feb 2011
Posts: 2
Likes: 0
Default replace pcv system

So far this thread helped me alot. Can someone explain how the breather set up works? Do I put a breather on all, three ports on valve covers? I have two on passanger side ( front and back) and one on rear of driver side
Reply
Old Nov 26, 2014 | 02:24 PM
  #8  
Pocket's Avatar
TECH Addict
15 Year Member
iTrader: (22)
 
Joined: Apr 2009
Posts: 2,656
Likes: 149
From: NC
Default

Breathers are a great way of oiling down your clean engine bay and not much else
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo




All times are GMT -5. The time now is 12:51 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE