alright i blew the motor in my 90 fc it was an s5. but a friend of mine has an s4 engine.. can i swap for the s4? she said the engine doesnt have power steering or an ac pump will it go good with my s5 ?

 

Non turbo I am assuming?

if you swap all the exterior engine parts, including the MOP, Fuel Injectors, alternator, engine harness, intake, etc and remove the EGR valve from the S4 motor it should work fine (and you honestly probably won't notice much difference since the S4 motor is only about 2 ft/lbs less power than the S5 motor).

 

and i wont have a problem with the power steering ? i was thinkin because my car was built with power steering, then this motor doesnt have it, if it would for some reason be harder to drive. and turn.

 

Swap the p/s and a/c bracket to the new engine - it should just bolt up.

To elaborate, your chassis' wiring and a lot of things attached to your S5 engine are different, so you want to reuse them and bolt them to the S4 "keg". Have a look at the FAQ or reference section at the top of the second gen. page.