B20b/z swap

Hey I was wondering if someone could make a B20b/z swap guide like they have in the teg tips section on this site. After reading that about the other engines I feel like i have a good idea about how to put them in but there is nothing about the B20b/z. If anyone could do it then it would help me (and a lot of other people doing this swap out alot). Thanks

A b20b and b20z should be exactly the same as a b18b. Just follow the guide for that.