Small block pushrods with hydraulic cam.

Desert Rat and I have been talking about which pushrods to use when changing a 273 from solid to hydraulic cam/lifters. I have been looking at old threads and found 5/16" Ball/cup pushrods that are 7.342 long. (7 11/32") I know there has been discussions about what works and even part numbers for the correct pushrods. Please don't hesitate to post your success stories including dimensions and part numbers. We could use a sticky on this. It seems to be asked often. tmm