340 Rod questions

it was 95 degrees Tuesday. I don't tend to drive this car when it is snowing. My BMW runs 10w-60 synthetic. Personally, I think any good quality oil from 10w-30 to 20w-50 should work. Lots of guys running 15w-40 for the zinc. Running a heavier oil with worn bearings or large bearing gaps is fairly common, whether it is right or wrong, I know my older motors are quieter with a heavier oil. Lets not turn this into an oil discussion just yet though.