The engine plant likely did whatever break-in was necessary. By the time the engine got installed in a car on the line it was a "known good" quantity not needing any overly special cam break-in procedure. Way too much time and money invested in assembling the car by then to have a dud engine that hadn't ever been fired that would need to come out and be replaced, not to mention the paperwork nightmare for the guys who tracked that stuff plus warranty issues.
Not that a bad engine couldn't get through the cracks, but I can't imagine them firing the engine for the first time and hoping things went well in a finished car on the line. That's how it's worked in every assembly operation I've been involved with: assemblies like power supplies, engines, transmissions, chambers, optical transmission systems, all of it has been tested before it gets put through assembly and the final assembly process merely checks to make sure everything is operating as a complete package as it should.
|