Good luck finding a new 360 crate motor though. You'll have to search high and low because they stopped making those years ago.
That was why I gave you a recipe to build one that will have even more power.
That all depends on what you decide to do. If you buy a 408 short block you'll only be selling a short block. Since it's a standard bore 340 with a cast crank most people would want the block to build a 416 or larger stroker. First you'll need to come up with your plan.