New lifters if you think there is any chance you might keep it. Timing chain tensioners, guides, maybe an oil pump. I can not find any good 4.7 heads in my stash so I am scrapping them all. I do have one complete engine coming out with blown head gaskets and bottem end is out, when I get the new engine swapped in I will pull the heads and see if they look useable but not gonna be in the next few days.