Rebuilt Engine bearing wear

worn lifter bore?
This is one thing I thought about but have no idea what to do about it. It only makes that noise when it's warmed up. I don't see anything in the bottom end that gives me any idea what this noise may be. But it was definitely coming from like the middle area of the engine. But sounded louder on the trans side. Almost made me think torque converter. When I changed my engine oil with everything else warm, the noise was still there. It doesn't do it when on the first start of the day