fd pulleys on a fc
 

have guys ever heard or seen anyone do this...as for the fd pulleys they come with water pump,alt,main, and some even come with the power steering pulleys...but all i can find is the racing beat alt and main pulley

my question is will fd pulleys fit an s4 or s5 motor?

No, the FD waterpump spins in the reverse direction of the one on the FC and has a smooth pulley, you couldn't get it to spin the other direction using them. However, you can use 13B-RE pulleys which are 6rib serpentine.