360 LA oil pan on a 360 Magnum?????????

I had read and heard that you must use the LA pan gasket when putting the LA 360 pan on a 360 Magnum. I looked and measured and checked this out this morning. I dont know all the correct terms but I'l tell you what I found. On an LA pan there is an almost 90 degree indentation in the corner of the metal lip up front where the pan meets the the timing cover and it is where you pull the "tit" of the gasket through a small hole to help secure it in place. The magnum pan doesnt have that angled corner and the gasket is a one piece deal that doesnt have an angled corner lip. For those of you who are familiar with this situation, why wouldn't heating and straightening that angle to match the curve of the pan there work, then the gasket would have a good backing instead of air behind it????