> >
> Welding shops carry AL 'brazing rod'. It's melting point is around 750
> degrees, well below AL's.
>
> I've played with it, but never have done anything that I would call
> useful with it.
>
> I believe Ed Anderson has used it successfully. Speak up, Ed.
>
> Charlie

I have had success using a "Second Generation" AL brazing rod.  I build up a
3/8" thick flange (about 2 square inches) for a manifold bolt position on a
cast manifold.  Don't see why it wouldn't work for building up a port, but
it would take a number of rods and they are not cheap.

Here is the URL for the company that produces this HTS-2000 rod

http://www.newtechnologyproducts.net/more_info.htm

Ed Anderson