GAS LINE CONSTRUCTION

[Anonymous]

I am a novice at this and need some input from all the experience out there. What are the pros and cons of using aluminum, brass or copper versus steel or stainless steel for gas lines. I've heard of aluminum being used. Fittings are made from brass, so it probably could be used, but i don't know about copper.
Do you have to use a lubricant with any or all the metals when flaring? I would like to use brass tubing because it goes better with (looks wise) with the rest of the modifications to my 300 inline six. Any suggestions or comments will be accepted with gratitude.
Gene Johnson

 

[MustangSix]

I usually use steel. It's cheap, easy to work, and strong.

I have used aluminum (get it from www.speedwaymotors.com ), but it does tend to dent easily. It looks nice, too.

Copper is probably ok to use, but not too common in cars. Would polish up nicely, but it may have a tendency to work harden and crack over time if subject to vibration.

Brass is likely to be harder to bend and more brittle than copper. Not to mention, more expensive.

On late model cars the fuel lines are plastic. There are kits that let you easily connect to almost any type of fitting..

 

[SuperMag]

I've used copper a lot, and never had a problem. It's not pretty, but it's cheap, and easily worked. Just make sure you isolate movement, like that between the engine and the frame, with a rubber tubing connection.

 

[63redtudor]

I've used steel for my fuel lines. Most auto parts places have basic stock lines that you can by to make lines from. These steel lines work for just about anything, but are mainly intended for fuel or brakes. Just get yourself a tube bender & start bending. Its actually quite easy & its nice being able to bend your own lines the way you want them to go. I've never liked my fuel lines (from the pump to the carb) right next to a hot engine, so I made mine away from the engine as much as possible. Even on a hot day, the line is quite cool.
Edwin