rocker arm and push rod question

at first glance i also thought that was the problem, today i looked closer , the lefts and rights are in the correct order, but a couple of them are so far off that the valve stem is actually hitting on the edge of the rocker arm, and all of the pushrods are to close to the cyl. head casting , some are less than .030 from rubbing the casting. if this is the normal for these motors , they are the biggest piece of crap i have ever seen. i really hope i am missing something here but it looks bad.