valve seal help

So i was started to replace the seals on my heads today and noticed that the seals that were installed are not like the seals i got from the parts store.

It looks like all the seals but one are the same and that one is the only one that looks like the ones i got from the parts store.

These are the ones that are on all but one.










and there is the odd ball one.





and here are the ones i got from the parts store.



Are the seals with the spring around the top some new style of seals? If so what are they called? Im guessing i can get them at the parts store.

Can i get rid of the odd ball one and make them all the same? Or does that chamfer prevent it. What would you guys recommend?
Author: admin