Man, my hat's off to you! Please keep us updated on your progress with the 337. I'm happy to see another guy making this step. For some reason, there's a lot of negativity concerning the big old 337, but I, for one think it was a hell of an engine.
You won't find your parts from your Lazy boy, thumbing through the latest catalog, like the 8BA guys are used to, but they are still out there. I run into them quite a bit.
You'll gather a hell of a crowd at any flathead oriented club...slim