The solid roller lifter pushrod seat heights vary quite a bit, brand to brand, and sometimes even within the same brand for different part numbers.
But not always…….
Comp SFT lifter 2901, seat height = 1.79”
Comp Roller lifter 829, seat height = 1.79”
As I said in that post, when you mix n match parts(heads, rockers, lifters)…..get out the checking tool and see what your combo requires.
If someone has something available off the shelf, great.