5.3 swap 1988 cutlass

[Tyler]

hi i am swapping my 1988 cutlass from a 307 to a 5.3 i am using the stock truck intake with the return style rails how would i do the fuel lines and can i run the stock gas tank and sending unit if i use a inline fuel pump thanks.

 

[Texas82GP]

There is good information in this thread on how to run the factory style nylon fuel lines including links to fittings, tools needed, etc. The best post is about #16. On my brother's 78 Z28 LS swap we used the factory fuel supply and return lines from the engine compartment to the tank.

 

[Texas82GP]

My bad, here is the link I meant to post this morning.

http://ls1tech.com/forums/fueling-injection/1085884-nylon-fuel-line-fitting-attachment.html

 

[81cutlass]

Maybe. I have a temporary setup but it seems pretty good. I have yet to put more than 50 miles on the setup so I can't say it's fool proof.

I just took the factory feed line and turned it into a return. Took a tubing cutter and cut the old feed line about 6 inches ahead of the rubber lines from the tank. I switched the old 5/16 return line rubber hose and connected it to the old feed line. I then fished a new braided -6 line from the tank forward through the frame rail. With the cut off 6" of hard line coming from the tank I hose clamped it to my fuel pump and installed the pump to the trunk floor where the muffler would sit.

I run a corvette filter regulator right off the old feed line as you can see in the picture below. Runs stock carb tank and feed line now return line.

I am running a returnless system though.

 

[83cuttyGbody]

What do yall think about a bop transmission on a 5.3 in a 83 cutty