They do need to be pulled out. Or pushed out from the inside. If you're careful, you can use a pin punch to knock them out from the other side. Be careful to move around the perimeter of the bearing so as to not elongate the hole in the alloy rocker. Once the first one is out, the other side is piss easy! Plenty of room to work. Or you can find a friend with a slide hammer & inside bearing (or crankshaft pilot bearing) puller. The good news is that they are a cheap-as, stock metric bearing size (type 608, 22mm OD, 8mm ID, 7mm wide) Best of luck!