[Land-speed] alum heads on the street

[sparky.2211 at cox.net]

There are anodes that are made to screw into the rad. drain plug hole!!!!!!----YES YES YES
---- "Adin wrote: 
> Since my knowledge of chemistry ends with "Salt, its not just for
> margaritas." I must ask:
> 
> 
> 
> Alum heads - antifreeze -What should one do to prevent the chemical
> (galvanic?) action in the cooling system??
> 
> 
> 
> Is antifreeze enough?  Do I need a sacrificial anode?