So I searched and couldn’t find anything but what are the differences in the colors of the bearings??? How do I tell which I need and has anyone ever used…. This remanufactured crank

https://www.nflowmotorsports.com/pro…rankshaft-kit/

Does anyone know what main bearings I would need?
And my final question is my crank barely has a couple spots where u can tell it got hot, I’m getting it checked to make sure it’s not warped…. but will these hot spots be an issue?? One buddy says no the other says yes?!?