Heavy_Rain

Completely new to bmws but I got a '86 e30 325i that I was told had an m20b20 in it..got another m20b20 motor with the car that I was told was from a 1990..It has the distributor on the front..has 1288322 stamped on the side of the block the motor i pulled out has 1278849 stamped on the side..can I swap the heads round and make it work?