Whats the easiest way to find "302" heads?

also the numbers should be under the valve cover, on one of the intake runners- it might be a "gooked" with oil or whatever. Have you checked with any local machine shops? I work at one and very rarely do we use the 302 casting numbers so they might just sell them real cheap and since you'll probably end up there sooner or later for a valve job it might just be easier to get some from them- and then they can PT them and check the seats so you know your getting a good set of heads- not like the Junkward where you get whatever "Bubba pulled for ya's"!