We extend to you a cordial "WELCOME ABOARD !" Come on in, make yourself at home, we are a friendly group of enthusiasts, and we also appreciate the classic Chris Craft Roamer, Corsair, and Lancer boats too , as they are all on the same family tree and share much in common ! Just start by posting a note introducing yourself to the group, that's all it takes here (we don't ask for or retain any personal information here, because our intention is to just "have fun and share information".
Now I know what we are discussing, it is the bumper rail around the boat, and it has been called by many names. The original equipment rail is not available. There are some that could be used, however, but it is a custom application. Dave Krugler found a product that almost looks original, but to date I have not seen anything that is authentic and fits the old casting like an original piece. The problem, at least on our Skiff boats, perhaps the same on your Corsair since they're essentially the same boat with different badges, is the fact that the bumper part was vinyl. Vinyl, as opposed to rubber, has a very bad habit of shrinking as it gets older. Any break in the vinyl would after 30 or 40 years look like a piece 8 inches wide was missing, just due to shrinkage.