There was a Mr. Gasket set of rocker arms on it. They had a ball and cup design for the push rods. The ball on the rocker arm broke off. It's about 3/16" in diameter so there wasn't metal to go around, but it got pulverized somewhere down the line and made it's way around the engine.
I never did like the rocker arms. I had planned on swapping them out for something more substantial... Oh well. :)
