The Bluebird in Japan uses a SR20DET. Or at least, the SR20DET motors that come from Japan are often referd to as "Bluebird DET's".
The Euro Bluebird uses a CA18DET engine, same as the S13 200SX.
The SR20DET from a Sunny/Pulsar GTi-R will work, but I don't believe the SR20DET from a S14 200SX will fit as it is designed for a RWD gearbox and therefore the mounting is different.