i know there are plenty of threads about this swap and i've been looking for an hour and used the search engine with no luck so i'm looking for some help.
i have an 85'gs and two donor cars an 87/89tII's
haven't decided which motor i'll use yet the install is no problem i just need to know the extra stuff like do i need to change over to a TII rearend? do i need to change feul pumps? motor mounts?
will the wiring harnesses match up? will i need to cut wires?
thanx in advance for any help you guys can give me especially if you've already done this swap before.

 

Use the s4 motor, it will give you less headaches in the end. There is no harness to just match up (stock is carbed, no ECU), you will have the TII motor and ECU that you will need to run the wires for. The drivetrain is your choice, and it will need to be custom howerver you choose to do it. Swap in the s4 TII tranny and make a custom crossmember for it (search for TII tranny for more info) and a custom driveshaft will need to be made to mate with whichever rear end you have.

Marques

 

Check the first gen FAQ page that's where a link to my thread is.

Scott