I read on here you could get them at autozone and they would take your E7's as a core. I tried asking for the heads a couple of times but all they can order in the computer is edelbrock heads, they don't have the stock ones. Does anyone know of other parts stores that might carry them? If not who do you trust online? 50 resto doesn't have them anymore either. 


I've found the explorer heads are better as cast then the E7's. Does anyone have dyno graphs or time slips to show the difference between the stock explorer heads and the ported E7's. Has anyone compared thumper heads to the explorer heads?