wow interesting this comes up now after everyone bought pistons from bore size. Honing from my understanding or I was told will increase the bore size at least .0001 which starts to get bigger than the clearance needed. I went back to my builder and remeasured the block the block was over by one thousand. If I had my pistons I would remeasure the pistons to check for there dimensions but Rick has them now.
I keeop rememebering seeing the ring gap on the top of the piston when I dissasembled them I have a bad feeling that you should not be able to see the rings at all since 5 thousands is real minute. Once I get them back I will recheck them.
Diamond said it was tuning and oil problems. I was wondering if I my water injection was maybe making my cylinder washed out.
So hence I will be boring a 3 liter now just 20 over