I would think that the pump push rod would be replaced when an engine rebuild was performed. I have done 2 383's and that was always on the list of parts to replace. Just my 2 cents !crazy
You would think so but this shop........lets say I wont use this shop again. I made the mistake of being too busy with work and let them do most of the work with very limited supervision. In the long run it is my fault for not being very strict with a list of parts and services to be performed. Now I just have to order the push rod. !stars