318 LA rebuild after losing a valve seat

^^^^^ Trying to remember if the actual size of the oversized .020 rod bearings are actually made to .018 to allow the .002 oil film clearance between the bearing and crank when assembled ??
More likely .019" under GJ. The rod journal diameter spec from the AERA manual is 2.124-2.125" for stock size. So the the bearing is only about .001" larger than the nominal.