318 main Bearing thrust diameter

Had a co-worker put together a 383 brand "x" stroker together for his sons truck.
New crank, measured right where it should be.
The kings bearings supplied with the kit had .002" clearance on the rod bearings, and .005" on the main bearings.
He put clevelites in and tolerance was where it should be.
He just told me this to warn me to avoid the junk bearings.