Anyone ever break/bust/crack/fracture the factory 273 adjustable rocker arms?

I just had two sets of 273 rockers/shafts reconditioned at Rockers Unlimited. Used to run these back in the day on my 273 bracket car. The current ones will be used on a 340 and 305 (de-stroked 340) I am building.

Just wondering what kind of failures (if any) others may have experienced. Fotos would be interesting, as well. Thank you.


Read the thread on the broken PRW rockers. If you are running anything other than stock, even with 273 rockers you need to correct geometry.