So this will be my first ever engine swap and im trying to figure out where to start if someone can talk me theough it very detailed that would be great it has a d16y8 and im tryi g to put in a b18c its a 99 honda civic ex

 

Look in the hybrid or tech section of these forums. All the info is there. You just gotta search.
This section is more focused on engine management systems, datalogging, sensors, stuff like that.
Good luck