Pushrod for hydraulic cam and 273 rocker arms

If those are your heads in the pics the adjuster is down way too far
you want less than 0 threads showing with those long neck adjusters
re-masure with your adjustable pushrod with the adjuster up to near the max
3 thread adjuster were much shorter from the ball to the threads
and as a very wise poster said- send your adjusted adjustable pushrod to the mfg or at lest a diagram showing how you mesured
pushrod cups are different depths so overall length can be different

from a thread on Moparts so a little more than 1/4"
"9/32 From the bottom of the (iron) rocker to the end of the ball. And that's as long as the oil feed hole to the adjuster is drilled right under the part where the adjuster goes through."
"I had one set of Crane W-2 rockers that had the oil hole about .090 lower than directly under where the adjuster comes through so you has to run the adjuster a bit lower or you'd smoke the adjuster."
and if you do not have oil holes under the arms- both sides- drill them
I prefer Magnum/AMC lifters and oil through the pushrod oiling for the adjuster ball
they smoke way too easily