Change the rod bearings and cross your fingers!

I thought piston knock was only with forged pistons. Let it warm up before you mash the throttle. Adjustable rockers? I had a noise that I thought was a knock, but it was a loose adjuster. I would assume that if the bearings look good, the pin side might be worn. What rods are they? What’s the worst that can happen? It’s bound to get a lot louder before it lets loose through the side of the block. I wonder if you could take a cheap feeler gauge behind the bearing in the event that it was a touch bigger. I saw a roadkill episode where they used a leather belt, but I’m quite sure it was in place of a bearing altogether