Incidentally, that was a 1995 LeSabre, using Mobil1 10W30 and a PF-52 filter. According to my notes, the worst main bearing was #2 (the thrust main). The rod bearings were all about equally worn. I ordered stock bearings since most of the wear was in the shells, not the journals.
If you go that route, be ABSOLUTELY certain that you follow the factory directions for torquing the cap bolts, NO shortcuts.
If you have a 1996 or later K engine:
- Torque each cap bolt evenly to 26 ft/lb, working from the center caps outward;
- Turn each cap bolt an additional 50°.
If you have an older K or L engine, the procedure is different:
- Evenly torque all cap bolts to 52 ft/lb to seat the caps and shells, working from the center caps outward;
- Back off each cap bolt 360° (a full turn);
- Torque each cap bolt to 15 ft/lb;
- Torque all cap bolts to 54 ft/lb;
- Turn each cap bolt an additional 35°, working from the center outward;
- Repeat the 35° additional turn in TWO MORE steps (a total of three passes) for a total of 105° after the 54 ft/lb stage.