Originally Posted by lt1silverhawk
Will one of the sets I purchased earlier be fine, or should I order these instead?
I prefer the FelPro type, and would use them providing they fit the boss and the 11/32" SBC valve stem OD.
I don't know your boss size, but these
are what I would use if the FelPro seals didn't fit your boss and these did. The application is for '93- up LT1/Vortec engines, but that's moot if they fit your boss.
Another that may fit is here
, they're intake seals; the exhaust seal p/n is given in the text. You will notice these include the small O-rings. GM used both the small O-rings and these positive seals into the '90s.
I had thought the years given earlier would have given you positive seals and not umbrella style seals. Umbrella seals will work, but there are differing opinions on using them as opposed to a positive type seal. Maybe someone else will have something to add.