5.7 vortec 98 c1500 crankshaft bearings
 

I'm in the middle of rebuild and I need to change the bearings. The first 4 of the bearings are .0006 stamped on them. The main crankshaft bearing is .001 bearing.
I notice theres none of them I could find online. The engine is stock and in great state. The crankshaft journals in great condition. I just want to get bearings that will fit the stock ones without modifications but can't seem to find oem stamped ones out there. What can I use