Valve stem seals

[Bitch'nBronco]

I've got 85 Mustang heads on my Bronco, im getting ready to do valve stem seals (as an interim fix). Summit lists a bunch of different types of seals and im not sure what to buy. Here are 2 photos of the types they offer for this head. Ive never changed these before on any engine so, any guidance would be appreciated. The black ones are sold as sets of 8 with different part numbers for intake and exhaust while they other type is a set of 16. I think the set of 16 is the correct type from my research, but am unsure

 

[Bitch'nBronco]

I found this video, seems to be helpful for anyone else that comes across this thread. Going to order the ford performance seals and report back after i give them a shot.

 

[DirtDonk]

I’ll watch the video with interest. But just from memory the first picture shows the original umbrella seals, and the aftermarket design “perfect circle“ seals. The cover photo of the video looks like variations. Other than that, I haven’t kept up with modern time so I don’t know if Ford varied them as well.

 

[Wild horse 75]

You want the positive lock ones. Umbrella ones don’t work well.

 

[DirtDonk]

Video unavailable still, for some reason.

 

[Bitch'nBronco]

Video unavailable still, for some reason.

Strange, it just let me play it again. Here's the link "youtube.comUNgzNaGYrhQ"