I have a 72 ford truck with a 302 I just found out was out of a 72 fairlane or torino, but the heads are off of a 69 truck(not my doing). I am about to order new rockers and I would like to have roller tip steel rockers. All of the roller tip ones i've found say they're for 68-89 rail type 302s. Are my heads rail type?

 

Think they are refering to the rail in the rocker not the head. There are small rails around the roller on the rocker to keep the pushrods from jumping off. They are fine unless you have a huge lift cam then you use guideplates and no rails. I think Comp-cams makes both types, you can see the difference at summitracing.com or jegs.com