My buddy called the guy who dropped the engine in who told him to not sweat it and that he woud make any minor adjustment when he came in for the 1000 mile warranty oil change.
to sum it up when my buddy bought the car back...
Did he actually continue driving it for 1000 miles??
Anyway, if the installer wasn't the builder, there's now THREE entities involved- each w/a portion of responsibility.
I would start w/whoever originally supplied the rebuilt engine
. There's usually a warranty involved. Some are good, some are not worth the paper they're written on.