When you turn the engine over, does that pushrod or rocker move? You may have wiped a cam lobe, and as it was wearing down the excessive slack may have beat the rocker to death. I have seen this happen on a lot of smallblocks. Also, are you sure that the pushrod is in the lifter? It isnt hard to get the pushrod just over to the side of the lifter and even though it may be solid against the block, the rocker will be tilted back towards the intake manifold. And one last thing...make sure the pushrod isnt bent...if it killed a rocker then the pushrod could easily have been bent also.
375hp 78 Chevy truck
77 Chevy Nova
95 Chevy Lumina 3.4L
and building a 78 Nova
[This message has been edited by travis (edited 04-27-2001).]