Which heads to get?

Never heard that ether. I've over heated other car brands and there aluminum headed engines, all aluminum engines, aftermarket aluminum heads and have not had an issue with it afterwards.

Aluminum should be very durable. The biggest life shortening issue to aluminum is the end users disregard and misuse of the head starting with the coolent mixture, or should I say there use of "water" with the coolent instead of the proper additive.

I am guilty of adding water when I shouldn't have.