I was wondering what all needs to be swapped to put a series 5 motor in my 87 TII. I can only get my hands on a s5 motor and I'm very pressed for time. I have read other posts on this subject, but they were really vague. I would imagine if I were to take the s4 intake and the injectors and such that it should work, correct? I need to do this swap in a week, so any information, especially detailed, will be much appreciated. Thanks in advance.

 

if you want the oil metering pump to work. you need to swap the front cover and pump from the S4 to S5.

then use everything that is bolted to the S4, and bolt it to the S5. except the S5 exhuast manifold and turbo. use that.

so intake manifolds, fuel rails, injectors, vac rack and lines, use all S4 sensors.

 

bump