How to big block

[wutnxt]

Hey everyone this is my first post and am new to the site. I currently have a 66 suburban disc braked and lowered, a 66 LWB lowered ( waiting for disc brakes ) and a 65 LWB disc braked and lowered all 3 are in progress so I hope you can give me some tech support.This site rocks and I have been reading all the posts and information and I wish I would have found it along time ago ....anyway....The suburban is about to recieve a 454 and I am wondering what kind of issues I will encounter going from a small block to a big block space wise and changes I will have to make?.....My next question is I am also massing all the parts to do 3 power steering conversions all at the same time or one after the other. I have read some of the older threads on how to do the swap but I am wondering if anyone has more words of wisdom or can point me in the direction of " power steering conversion for dummies " is it really as easy as some of the threads make it look ?....Thanks everyone