are all valve seals the same in small blocks

[speedshftr]

are 327 the same as 350 seals thank you

[DEIGuy38]

if you are talking about small block chevys, then yes they have an o ring seal on the second groove of the valve stem just below the keepers. I built cylinder heads for a few years and we ran small block ford umbrella seals because the chevy o rings suck.