340 push rod length

The bigger question is why would anyone care what length the stock pushrod is? It's not like anyone is gonna actually go out and buy new pushrods based on some 50 year old number that might or might not actually properly fit an engine that's been rebuilt 5 times and most likely uses different ball/cup sizes and rocker seats.

Surely, no one would do that, would they?
Yup, I just built a 340 with hyd lifters and Comp Ultra Pro magnum adj rockers. Stock p/r length is 7.500. Put in Comp magnum p/r 7.500. Exact same legnth. Changed them bc the springs are 310 lbs open. Kim