OK. I'm pretty new to the LS engine building. I've got a 5.3 that I'm rebuilding. I got the crank and everything out. I measured the main and rod journals and they are about 0.020 under stock specs. Journals are in good shape. No abnormal wear or scratches. Looking for feedback as to whether or not I'll be good with running 0.020 oversized bearings? Any feedback is appreciated. Thanks!

 

I think it would be okay and you're half way to the maximum of 0.040 over sized bearings. Pay a lot of attention to the clearances when you do the assembly. Blue-printing is everything to have a reliable build.

 

Agreed. It's fine.