I have an aluminum water neck, but it's not the correct angle for a Firebird. I have no idea where it came from. (I got it with one of my manifolds.) The problem I see is that the flange is thin - too thin! I can see this thing having all kinds of trouble staying sealed.
I bet the Pontiac dude in Florida has something available in Aluminum. If there is a demand for a billet aluminum version of the neck that runs the hose around the back side of the alternator, I might be tempted to have a batch made to a design I have.
