Some other similarities/differences:
-Same overall length. Just the different height already mentioned.
-Same engine family, so many of the same characteristics.
-Cylinder heads almost cross over. The 351 uses larger bolts, but otherwise the dimensions are so close that they will bolt to one or the other block. That's why the headers will likely work.
-One exception to the headers is the type that wrap around the passenger engine mount. Those will usually not rise up enough to fit the taller engine.
-The main bearings are larger, to strengthen things for the longer stroke engine's higher torque.
-Firing order is 13726548 vs your stock 302's 15426378. This was is accommodated with a camshaft where the four cylinders are swapped around. Modern 302/5.0 engines now use the same pattern. So whichever cam is in the engine is the firing order you go by.
-The engine block is wider at the pan rail, due to the larger bearings and longer stroke. Hence the need for a 351w-specific oil pan.
-The main bearing bolt w/stud that they mentioned is needed for any rear-sump pan because the oil pump in in the front (under the distributor as they share the same drive) so the 4wd rear-sump pan requires the rear oriented oil pickup tube, with long neck and support brace bolted to the main bolt stud.
-Bronco engine uses the same item, but with the new pan it's best to get the rear pickup for the pan specifically. Unless someone can tell us if they're the same part number as the one on your Bronco's 302 that is.
-The crankshaft uses the 28oz imbalance factor, so all the same flywheels and harmonic dampers would work in a pinch. But best to source a 351 specific damper (if it doesn't have one already.
-The aluminum front timing cover will fit either engine. So if the 351 was out of a car with a driver's side water pump inlet, you could swap your Bronco front cover and pump and accessory belt drive stuff to the 351 for a clean installation. Unless you're going with a modern serpentine setup.
-Fuel pumps are the same, but if you have a newer engine block (EFI style) you may need an electric pump since it does not have the drive for it.
-If it's a newer block you may not have the threaded hole for the clutch mechanism. The vendors sell adapters for that though.
-Engine mounts are the same for both engines.
-A Windsor will fit without a body lift, but only just. So the body lift will help ease the transition.
Is this an unmolested 351? The Windsors tend to have a higher instance of running hot if they're over-bored too far. So try to avoid one that's already .040" or especially .060" bored out. It's a well known phenomenon, but less so on the later roller motors it seems. But perhaps that's because fewer of them have been bored out? Hard to say.
Probably some other small details, but externally I think we've covered most of them.
Good luck.
Paul