Small Block Pushrods 5/16 Ball and Cup

I used a pushrod checker. That is how I know I need 7.234. These were used on 340TA motors.
I was hoping someone has a moly set of 7.234 and need 7.342 before I order them from Manton, Trend or Smith Brothers.
I would rather swap if someone needed these.
I hate to open up this can of worms but are they measured by overall length or from the bottom of the cup to the end of the ball?