But seems to me the piston rocking will be dependent on piston and block temperature. Checking cold probably worse than when running. I would expect less bore clearance and less rock at operating temperature. But that's just a guess without knowing exactly how the piston will expand. I've read that piston geometry is specifically designed to match piston and block thermal expansion even though it's aluminum versus cast iron. In my case, I have no way of knowing and have to hope that JE did a good job with my pistons.
Are you suggesting piston/head distance of .035 (.040 gasket -.005 out of hole, not counting piston rocking) isn't enough? I'm going for high squish velocity and as much compression as I can get. If I find evidence of contact I can always trim a bit off my pistons.
