old vw heads

i have about a couple of dozen old type 1 vw heads. they seem to be aluminum except for the exhaust and intake studs and the valves and springs. i heard a rumor that they could be some kind of aluminum alloy but not sure how to test. any ideals?

Cast aluminum.

Check the studs, check the fins, and check for cracks if you're planning to resale.

Originally Posted by bejak

Time spent removing steel and misc. may not pay well, but that's your choice and my .02.

first off, thanks for the responses. i have free time on my hands so i TRIED removing the stud and after a few failed attempts with a couple of busted knuckles and a near cutting disk laceration, i took one of the head with me to my scrap yard. she is going to give me dirty aluminum prices. the heads are not worth resale or at least i wouldn't use them if i was still building VW engines. i also found out today that the chrome bezels on the taillights and around the headlights are chromed brass and the front turnsignal covers are stainless along with all the screws that hold them on.