I broke a rocker. It's a stamped stock rocker. It broke at the pivot point.

What do you think caused this?

The remaining rockers appear to be fine. It happenned during acceleration (sub 3000 rpm's.) 9000 miles since head was installed and 8000 miles since valves were adjusted.

Looking for any input and thanks.


If at first you don't succeed,
then read the directions and try again.