[Formulajones]

I've had the factory stamped rockers fail. Had one bust right through the fulcrum on a very mild hydraulic flat tappet. So they do fail but you won't hear of it too much anymore these days for a couple reasons. One is there are so few Pontiacs on the road and the ones that are around are seldom driven so the sample size is just too small to make any comparison. Two, many classic Pontiacs still around have had some sort of performance oriented build at some point in it's life and my bet is likely most now don't even sport their original rocker arms anyway.

Worrying about something failing can honestly apply to most anything you buy. Any part of your engine can decide to fail and any given time, even the more expensive stuff. Ya just have to avoid the cheap parts on the market and cross your fingers the more expensive stuff holds up. It's hot rodding. Roll with it.