These are what I am installing in my 117" build.I wanted to address my valve train stability and they should be up to the task.
7/16 to 3/8 taper,.165 wall thickness. 3/8 threads cut into the chromoly rod ends.24 TPI.
And as part of the give and take aspect,these rods are 45 grams/each heavier than my Feuling .095 wall adjustables.
This is Not going to be a high mileage build and valvetrain life is being taken into consideration.They are going to be paired up with Wood lifters and S&S rollers on S&S 675 cams.
It doesn't get any better than smith brothers for pushrods, very good choice. Just like everyone else, I have been folllowing your post on the 117 your building, looking forward to the outcome.