full
NO, they have two completely different motors.
If the Prelude is an automatic, yes, you use automatic transmission fluid. If it's a manual, there's manual transmission fluid. As much as possible, purchase the manufacturer (Honda) branded transmission fluid.
No. The Prelude has a B20A5 motor. The civic will have a D-series tranny. They will not interchange (B and D series parts do not interchange).
Many times a transmission will not function properly when the transmission fluid is low. Check the transmission fluid and fill to the full mark.
does a 1990 honda prelude 2.0 s.i have a pilot bearing
There is no dipstick on the standard transmission , the fluid level is checked at the fill plug on the transmission
yes
It should be the 700R4 transmission.
http://www.modifiedlife.com/1990-honda-prelude-car-radio-stereo-wiring-diagram/
Yes the H22 will fit in a 1990 prelude. It is a very tight fit and requires modification. You would need a new transmission, ecu, new wiring, motor mounts, ect. Before you decide to do this swap you need to really think it through. Its very costly, difficult, and can be troublesome. And remember this is all for a 60-65 hp gain.
Should be the 700R4 transmission.
Yes, however the procedure will involve a lot of customization.