All - > > Can't these be welded as well? Cast iron is not easy to weld, but I would > think that its possible, and it may be cheaper. Any suggestions? There is a national company "Jet-Hot" that repairs and does special high temp coatings on exhaust manifolds, in a variety of "colors", including "cast iron". I had my Alfa manifolds done about 5 years ago and they still are very nice. But V-8 manifolds are expensive to ship and the coating costs could be "high". Bob