This may be a dumb question but if I want to swap the old fuel lines to AN fuel lines on my GSR swap what all will I need? Will I need a different fuel filter, pressure regulator, etc?

 

I guess that depends on what the purpose is for changing out the fuel lines and what size lines you want to run?

Short answer is no, you don't necessarily need to change out any other components, but will likely take some time getting the correct size adapters and fittings to hook up to the OEM stuff.

But, if you are upgrading the fuel system to run a different fuel such as E85, need more flow for forced induction etc. then it is probably worthwhile to upgrade the fuel filter and regulator while you are at it.

 

I am changing them because all the old lines that run under the car including the break lines are all rusted bad enough that they are all leaking. From what I could find stock fuel line sizes are 3/8 for the feed line and 5/16 for the return so that’s what I went with. The fuel lines came with fittings and unions just not sure if they are the ones I’ll need. I haven’t got around to replacing yet as the car is not in running condition atm. Just wanted to make sure I don’t need to anything else other than probably different fittings. Thanks

 

I am having troubles finding the right hardware to fit the an lines to the steel lines that are on the pump/tank as they seem to be a different size then the fuel line it’s self. Along with the return line off the fuel rail. Any chance you know what I may need? I have the an line connected to the fuel filter no issues there. It’s almost as if I need a quick connect for the feed that has a 3/8 push barb to a 5/16 steel line but i can’t find any.