LS Fuel System
Thread Starter
Junior Member
Joined: Dec 2019
Posts: 96
Likes: 1
From: Aurora, OR
Car: 1986 IROC-Z
Engine: 6.0
Transmission: 4L60E
Axle/Gears: 10 Bolt/3.43
LS Fuel System
Hello,
Recently purchased a 4.8 to throw in my Camaro (for now). First stretch of the project is dropping my rear end again, and replacing the metal tank with a fourth gen tank. I already have the replacement tank, but I was curious if I could somehow use my stock carb. fuel lines and save some money, or if I would be better off replacing them with the fourth gen lines?
Thanks!
Recently purchased a 4.8 to throw in my Camaro (for now). First stretch of the project is dropping my rear end again, and replacing the metal tank with a fourth gen tank. I already have the replacement tank, but I was curious if I could somehow use my stock carb. fuel lines and save some money, or if I would be better off replacing them with the fourth gen lines?
Thanks!
Joined: Feb 2001
Posts: 13,774
Likes: 567
From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Re: LS Fuel System
If you are going carb why go through the hassle of replacing the tank? The stock lines are fine to use and since you're going carb the stock pump should be fine as well.
Thread Starter
Junior Member
Joined: Dec 2019
Posts: 96
Likes: 1
From: Aurora, OR
Car: 1986 IROC-Z
Engine: 6.0
Transmission: 4L60E
Axle/Gears: 10 Bolt/3.43
Re: LS Fuel System
Oops.. should have specified better. I'm going with the stock LS EFI. I was wondering whether I could turn the metal third gen carb lines into my pressure lines.
Joined: Feb 2001
Posts: 13,774
Likes: 567
From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Re: LS Fuel System
Ah I gotcha, and yes the stock hard lines should be fine. You will need a 255+ pump depending on what power you are shooting for. Even if you use the 4th gen tank, it would be a good time to swap the pump. If you go larger than 255lph I would look into a hotwire kit (larger gage wiring to support the electrical demands of the pump)
Thread Starter
Junior Member
Joined: Dec 2019
Posts: 96
Likes: 1
From: Aurora, OR
Car: 1986 IROC-Z
Engine: 6.0
Transmission: 4L60E
Axle/Gears: 10 Bolt/3.43
Re: LS Fuel System
Awesome, I'll go ahead and adapt my lines to the new fuel tank. I'll probably stick with a 255 pump, but I might as well upgrade the wiring while its apart. It's good insurance to do so.
Joined: Feb 2001
Posts: 13,774
Likes: 567
From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Re: LS Fuel System
Just make sure you replace any rubber portions of the lines (at the junction of the tank sending unit and hard lines) with fuel pressure hose.
Thread Starter
Junior Member
Joined: Dec 2019
Posts: 96
Likes: 1
From: Aurora, OR
Car: 1986 IROC-Z
Engine: 6.0
Transmission: 4L60E
Axle/Gears: 10 Bolt/3.43
Re: LS Fuel System
Gotcha! What would be best as a replacement? Would it be better to use something like steel braided line, or plastic line with quick disconnects?
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Joined: Sep 1999
Posts: 4,353
Likes: 308
From: NJ
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: LS Fuel System
I have a 4.8 with a 4th gen plastic tank. If you have the plastic lines and the metal junction from the 4th gen tank you can use a 4th gen filter and screw it right onto the 3rd gen hard line.This is what I did
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