I'm about to do this swap. Does anyone know if it will work? Or, are there any modifications required?

 

Ok, nevermind. I see this thread has been here 4yrs and nobody knows, lol. I am going to do this swap within a month, and will post back the results. I already have a complete LS1 tank that I'm going to put in my 95 TA. I'm going to use the LS1 sending unit as well. The reason I'm doing it is that my fuel guage does not work, and the dealer wants $470 for the sending unit. I bought the LS1 tank complete with the sender, filler neck, wiring, lines, etc.. for $100.

 

ls1 have no return line, lt1 do

 

The wiring will not plug in.

The tubing is all different & will require adaptation.

The internal regulator needs removed from the LS1 sending unit.

Also your LT1 fuel gauge definitely will not be happy with an LS1 sensor.

LT1 & LS1 pumps/sending units are totally different, so I would not count swapping them between tanks... but I've never had a reason to attempt this.

Lonnies Performance Automotive

 

Different location, definitly. The 99+ tank's opening is 6" further back and the attachment/sealing is absolutely different.

I've got pics somewhere comparing the 2 tanks. I'll look and post back.

 

My turn to bring this one back.

Everyone says that they'll post pics and how to's, but we haven't seen anything yet. I'm asking because the car I am doing this in is going LS1 and my V6 car is getting the LT1. The "LS1 to-be" car is getting everything LS1 except the motor until I finish it.

 

it would be cheaper for you to just buy an LS1 car complete.

 

Let's see............99+ tank $150. 99+ LS1 car...............$7000. You're right, it would be a lot cheaper.