Okay, so I've been reading more info about the LT1 swap before I start and now the "fuel lines" thing has me scratching my head. People are using braided lines with these fitting and it looks like the lines are running all the way back to the tank. Is this because people want it to look nice or is it because this is how it must be? I was going to try to bend my hard line until I saw how much easier it would be to use braided lines BUT that stuff isn't cheap apparently. I'm hoping I misunderstood it, but I saw $21 per foot...THAT'S CRAZY!!! Any way I could combine my current hard line to a braided line? What is the easiest route to take? I'm hoping it's a lot more simple than I think. I'm going from TBI to LT1.

 

I think it's a smarter idea to retain the stock hard lines under the car. Running a new line is not only unnecessary, but opens up the possibility that it could rub or chafe on something, whereas the stock lines are already well mounted in a safe location, and don't have any bending stresses because they're rigidly bent to the required shape.

Most of the LS swaps I see at car shows have retained the factory lines. I'm not sure if there's a readily available adapter that will screw on to the existing lines and provide an AN connection, but there is certainly always the option of cutting the line just below the original connection and installing an AN fitting directly to the line.

 

Fragola 491970 and 491971 or earls 9894DBJERL and EAR-9894DBHERL

Russell 640850 Russell 640860

 

SWEET!!! sounds the easiest. Would the metal line reach that far? Or would I still need to use some braided line?

And i just screw these adapters onto the end of my current fuel line where it screws to the TBI? or do these go onto the LT1 fuel rail thing?

 

The female Saginaw to an would thread onto the hard line on the frame rail. You would need to build an6 lines to connect to the lt fuel rail fittings. IIrc the lt1 fuel rail uses push connect fittings.

 

The hose is the cheapest part of the system, so adding 10-15' extra to go all the way to the tank is a matter of personal preference

SS braided lines a very wear resistant. They're usually the abrasive, not the worn against part

For LSx swaps, I prefer to go all the way to the tank because the system changes from return (3rd gen) to returnless in most swaps requiring changes to the hardlines if kept. If Im already down there, Im going to be replacing the stuff with lines I can route where I please and reuse elsewhere if the system changes in the future

For LT1s, the system is always return style, so how far you go is a matter of preference. IMHO, using the stock lines is an eyesore as they go too far forward along the framerail, then bend back to near the firewall to meet the fuel rail

 

Okay cool. So if I get that Saginaw fitting to adapt my TBI fuel line, I'd just have to get a fitting to attach, some line, and fittings for the lt1? And the same for the return line, correct?

I would have no problem using the stock lines. At this point in time, it's not for show lol maybe in a couple of months. This "fittings" thing is getting a little more understandable.

 

I have these parts in my cart thus far.

http://www.summitracing.com/parts/ear-9894dbherl
http://www.summitracing.com/parts/ear-9894dbjerl
http://www.summitracing.com/parts/rus-644110
http://www.summitracing.com/parts/rus-644120

All I need now are 2 fuel lines that connect to the -6 AN fittings, correct? I've started my swap already. Removing the TBI wiring harness and drivetrain now. I have 7 days to get this done.

 

You will need to build the crossover lines from the frame rail to the injector lines. If you route the lines headed back toward the master cylinder and then over to the engine that would look fairly clean.
http://www.summitracing.com/parts/aer-fca0610
http://www.summitracing.com/parts/ea...commendedparts
http://www.summitracing.com/parts/aer-fbm1012/overview/

 

Yeah, it would look cleaner. And would be a lot easier of an install while the motor and trans are out. But I'm mainly focused on getting it running with as least hassle as possible. So I prefer to use the stock lines right now. I'm thinking I'd need maybe a foot or two of fuel line to reach from the hard line to the LT1 fittings? And how about using rubber fuel lines?