well as a builder and a engine machinist i understand that some would not have the tools or measurement tools i have. so you need to check it so plasti-gauge will work for that. But you will not know were the housing bores size for the rods or mains.. (This is a big deal to me ).. if you have any tapper you will not know if its the housing bore mains/rods or just bad bearings mich bearings will hold up good and still used the H type bearings just have not been that happy with there size but have used them for many years .not put together clean or not the right oil running clearances lack of oil and dirty oil kills more bearings than the maker but there as been some really bad bearings out there that did flake up .will not name them