SW_US
If you have a command on the 737 and the right to work in Europe the answer is yes. You will have to get your licence indorsed by the IAA. 12 months from that date you will be expected to sit all 14 of the JAR written exams to get your full JAR licence issued.
If:
You dont have a command on the 737.
The right to work in Europe - ie marrying some bimbo (like marryin some mexican gal to get a green card).
Then think you will be struggling.
Good luck