The biggest issue is after an
oil change--the time it takes to fill the system, lines, cooler,FILTER, etc-----soooooooo, the guys who change there
oil 4 or 5 times a year are doing more harm than good-Just ask Al Gore!!!!!
Brent---the last people you want to ask about valve springs are the valve spring people----also----take that several hundred pound pressure, multiply it by the rocker ratio, and just imagine the load on the parts---rocker/shaft/stud/pushrod/lifter---and if roller lifter--the needle bearings in the roller(probably the highest stresses per unit of surface) and the side loading on the lifter boss/body if not directly on the nose of the cam--