I may be mistaken but the manifold was painted with the rest of the engine, so it would have been red. If you don't care about the "original" look. There is a product called Cast Blast that comes in a high temp paint. The picture is what it looks like on my 850. The second picture is with the manifold painted red and black. Cast Blast can be bought on line. Can't recall the name of the company. I'll try to find and post for you.