273 rockers on 340 with hydraulic cam

I installed a hydraulic camshaft in my 1965 273 engine, a fairly mild "RV/Torque" camshaft (still has slightly more intake lift than factory HiPo camshaft, I recall). I bought standard pushrods for the 1970's 340 TA engine, which are similar ball & cup type as my factory pushrods, but just shorter to fit the hydraulic lifters. Might work for others using fairly standard parts like heads which haven't been milled much.