I found a set of "P"s at the local junk heap for a steal. Of course I want to jump right in and toss them on but I haven't done heads before and I wanted to know what the minimum prep you guys would suggest I do to the heads before I install them. The car they came out of was a 1998 Mercury Mountaineer. I got them real cheap and they probably won't be on their long so I don't want to sink a lot of money on them. My other concern is the headers. I know the stockers won't work. Can I go cheap and snag up the Explorer headers as a temporary bandaid? If so, is that a stupid idea? Like I said they won't be on their long so please avoid the "IMO you should save up and get aluminum heads" posts.