All pistons are Aluminum - even the stock ones. The question is: Forged or Cast? We could have a good debate about this here ...
I believe that a street motor that is raced occasionally would benefit from forged pistons. There are a lot of folks who feel that some of the modern hypereutectic alloys are great as far as cast pistons are concerned, and will last just as well. Older-style forged pistons are a little noisy while the car warms up, but they are almost indestructable. I don't have any first-hand knowledge of the hyper's. I am sure one of the other guyts here does, though.
A Firebird is too heavy for an Aluminum flywheel. Stick with a steel or iron one. (IMHO)
