LTX and LSX Putting LT1s, LS1s, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects including repairs, swap info, and performance upgrades.

Intake/Fuel line ?

Old Feb 19, 2010 | 04:59 PM
  #1  
motenkjr's Avatar
Thread Starter
Member
iTrader: (1)
 
Joined: Jan 2009
Posts: 112
Likes: 0
From: Jacksonville, AL
Car: 1985 Camaro
Engine: 305 ci
Transmission: 700r4
Intake/Fuel line ?

Can any of you guys with truck coils and LS1 intakes post pics of how you did the fuel line on the manifold? My fuel line off of the intake is hitting the third coil pack and I can only think of one fix. Also, does anyone know if the walbro intank fuel pump is the same for third and fourth gens? Thanks.

Last edited by motenkjr; Feb 19, 2010 at 05:34 PM.
Reply
Old Feb 19, 2010 | 05:59 PM
  #2  
BlueZee28's Avatar
Supreme Member
15 Year Member
iTrader: (30)
 
Joined: Sep 2005
Posts: 6,258
Likes: 6
From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: Intake/Fuel line ?

Originally Posted by motenkjr
Can any of you guys with truck coils and LS1 intakes post pics of how you did the fuel line on the manifold? My fuel line off of the intake is hitting the third coil pack and I can only think of one fix. Also, does anyone know if the walbro intank fuel pump is the same for third and fourth gens? Thanks.
I had originally taken a pipe and put it around the Russell fitting on the fuel rail and just bent the end of the rail upward away from the coil pack. I didn't like how my line looked aimedup towards the hood with a straight Russell fitting so I eventually swapped it for a 90* fitting which kicks the fuel line straight back towards the firewall. I will post a picture for you shortly.

I'm assuming the pumps aren't interchangable but someone else may chime in and say differently.
Reply
Old Feb 19, 2010 | 06:06 PM
  #3  
slick00m's Avatar
Junior Member
iTrader: (1)
 
Joined: Nov 2002
Posts: 66
Likes: 0
From: lubbock Texas
Car: 1989 Camaro IROC
Engine: 6.0 LQ9
Transmission: T56
Re: Intake/Fuel line ?

I just bent the fuel rail line up a little bit. The pumps should be the same but I'm not 100% on that. I used the Walbro for the 3rd gen.
Reply
Old Feb 19, 2010 | 06:43 PM
  #4  
BlueZee28's Avatar
Supreme Member
15 Year Member
iTrader: (30)
 
Joined: Sep 2005
Posts: 6,258
Likes: 6
From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Re: Intake/Fuel line ?

I used the Walbro 255 for a 3rd gen... I guess the reason why I'm thinking a 4th gen won't work in a 3rd gen tank is because the fuel lines and evap system is totally different? I'm not positive though. I guess an easy way to tell is check to see if the part numbers are the same.


Here's my fuel line after I put the 90* fitting on:

Name:  IMG00594.jpg
Views: 67
Size:  74.3 KB


Before with the straight fitting:


Name:  blockpics4005.jpg
Views: 78
Size:  96.8 KB
Reply
Old Feb 19, 2010 | 09:21 PM
  #5  
dynodanmanda79's Avatar
Senior Member
15 Year Member
iTrader: (1)
 
Joined: Sep 2007
Posts: 533
Likes: 0
From: Crestview, FL.
Car: 1989 IROC-Z, 1979 Malibu Classic
Engine: LSx 5.3
Transmission: MN12 6-speed, 4L60E
Axle/Gears: 4th gen 3.42
Re: Intake/Fuel line ?

i just bent mine toward the firewall just a tad bit, just out of curiosity which truck coils are you running? the round ones? or the Mitsubishi ones?
Reply
Old Feb 19, 2010 | 09:32 PM
  #6  
Pocket's Avatar
Supreme Member
20 Year Member
iTrader: (24)
 
Joined: Jun 2005
Posts: 8,117
Likes: 362
From: NC
Car: 91 Trans Am
Re: Intake/Fuel line ?

I have LS2 coils and they must mount higher than normal truck coils because I had to bend my line completely vertical. I dont like that at all

My walbro came out of a 4th gen sender. They fit. IIRC walbro uses the same PN for both car pumps, just a different install kit
Reply
Old Feb 20, 2010 | 06:17 PM
  #7  
motenkjr's Avatar
Thread Starter
Member
iTrader: (1)
 
Joined: Jan 2009
Posts: 112
Likes: 0
From: Jacksonville, AL
Car: 1985 Camaro
Engine: 305 ci
Transmission: 700r4
Re: Intake/Fuel line ?

Thanks guys. The coil packs on my engine are the round ones.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
13sec83trans
Carburetors
22
Nov 28, 2015 09:26 PM
AmpleUnicorn88
Brakes
32
Nov 18, 2015 11:02 AM
skinny z
Carburetors
11
Sep 29, 2015 11:25 PM
romcjr
Transmissions and Drivetrain
2
Sep 17, 2015 05:18 PM
TBRays98
Tech / General Engine
6
Sep 6, 2015 05:05 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 12:53 AM.