[randy wilson]

We've had this discussion before at least 2 times. My thoughts, for what it's worth is I would never fill a block. And I've filled 5 or 6 before. I never gave it much thought until a very experienced engine builder showed me after my first teardown how much chatter the honing stones had. Well, I told him the next time it would settle down and hone smoothly. Wrong! It was worse. So we did an identical 283 block with just deck plugs, and no chatter after 4 rebuilds. Just my experience. I would not fill any block. Get an aftermarket block, or get a good stock block and use deck plugs, and no filler. Bowtie or after market preferred.