so im going to install the ls1 tank to the ls1 motor in a 1986 305 tbi motor car, i heard that this will take the factory fuel line up untill where it goes into the motor, can i just cut the original line use a clamp and connect to a rubber fuel hose to complete the line where it meets the motor? and do the same for the return line? looking for the most economic, fast, safe option.

 

Rubber hose & the word safe do not belong in the same sentence.

At minimum, get a compression fitting so you can adapt a piece of braided line from the factory steel line to the LS engine.

Here is a compression fitting that converts to AN line.
http://www.summitracing.com/parts/rus-639200/overview/

From here you can make a piece of braided line that will connect to the engine.

 

thats what i figured...i think i need to talk to summit racing and order the parts for the send and the return line i just dont know if i should cut the line and try to adapt or send a hose from the filter to the motor

 

Which factory fuel line are you talking about, the '86, or the LS1?

BTW, there was no TBI in 1986.

 

i have both i would really want to use the ls1 fuel line would make it so much easier, i have both. i just checked the title and it is a 1986 so i wonder what it is i bought it without the motor so carb i guess?
you guys think the ls1 lines would fit?

 

15th time, LS1 Factory Fuel lines are not a direct fit, they kick out under the driver, if you replace the line from right where it kicks out to where it straightens back out with one long semi-straight piece of line tucked into the rail it works perfect. So get an LS1 tank with lines off the tank right to just past the filter then add a straight piece all the way up to the rail. Im going this same route with my 67 bird as well.

 

I don't see the advantage of installing the ls1 tank unless you are doing it for smog reasons.

 

Uhhhh what?? ? Plastic is lighter, rustproof and comes with a built in fuel regulator. Not to mention it has a bucket to eliminate fuel starvation under hard cornering. Cost is usually low too, under the cost of a new pump only upgrade for a crappy 3rd gen tank. Direct bolt in minus extending the filler neck.

 

Face palm.

 

looks like i have a return line in my 1987i see 2fuel rails that go over thr transmission tunnel from the driverside looped over to the passenger car....i also have a million sensors its weird seems more sensors than the ls1 .....can i just use those two rails one as return and send they are the same diameter?

 

Supply 3/8", return 5/16".

 

is that what i have in the 87? that means i could keep that all those fuel lines and just mount the ls1 tank?

 

Is it possible to run an LS1 tank with a new high pressure pump in it. Mount a corvette style regulator/filter where the factory filter is (return back to the tank there) and than run a steel braided 3/8" fuel line from the back of the car along the transmission tunnel to the new LS engine?

 

Yes that will work.