using copper hardline

i also have thought of this. my dad has been a plumber for over 25years, and has built a few hot rods. the copper line can handle the pressure. finding the right fittings will be hard. your truck twists and vibrates alot. b/c the pipe is so ridged the push fittings might leak. soldering or "sweating" the fittings is a good idea but then again the vibrations might cause them to leak. i have tried this on my truck from the compressor to the tank and it has not leaked yet so i might try soldering all of my fittings. you could use the soft copper to runn all of your main lines on the truck. it bends pretty easy with a good hand bender, then run stainless steel line from there to the bags. there are many different ways to run them. they also have "shark bite" fitting s now for copper, which are like the typical push fittings , but made for copper pipe. just don't know if they will hold the pressure,or are air tight, and they are like twice as expensive as regular push fittings

Edited: 9/9/2008 8:04:28 AM by draggindakota

Lucky, you could always make all your lines and send them out to get chromed. That would look pretty bad ass.

Mines not copper but my truck is hard lined and i think it looks pretty good.

As long as all the flex points are delt with correctly, and the connections are soldered good then there should be no reason for it to last a long time.

If you are going to hardline it.... i would suggest using seamless stainless.

it has been on my truck for about 4years and no problems with push fittings

Originally posted by tacokane



Anybody used the flexable copper line before? Can it handle the same pressure, and what about heating the ends of the copper line and sodering them as you would a hot water heater. Any thoughts on this technique

that is what you need to use, the copper that you can buy in rolls... You can also use alum fuel line for air line too if you dont like the copper color and it is almost 1/2 price...

copper will tarnish over time, but if you're not showing it, I wouldn't worry about it. I'm going stainless, harder to bend, but looks way prettier!

My dually had copper on it 1/2 inch worked great ,,use a good fitting like legris and you should be A ok