Contour Enthusiasts Group Archives Forums Modifications 3.0L Duratec another one bites the dust

All metals have elasticity to some degree, however; the powder metal rods are likely to have less flex than a comparable forged rod.
VERY VERY unlikely that it is stretch. I would to think that if the bearing spun then the oil film got too thin at some point for some reason. It could be the clearance was too wide for the oil feed, it could have been air, it could have been that the clearance was too tight for the oil viscosity used.
What about the pistons? Do they have a moly coating? Is there any side thrust that can cause the rods to press a little to hard laterally?
You see there may not be only one right answer.