[lovehamr]

Is this engine really a stock junker as your sig indicates? If it is stock then the rocker adjusting nut could have come loose in which case it needs to be tightened. The valve spring may have broken in which case it would need to be replaced at the very least. Or maybe something happened down at the cam level; push rod bent, cam lobe went flat, lifter collapsed something like that. Any of these could indicate that you're on borrowed time with that engine, so a rebuild could be in order. If while you’re checking it out you get more info go ahead and post it, now I’m curious.

Steve