Does a 360 with hydraulic lifters need offset rockers? Please identify?!?

Well, I just guessed that they are 273's! I really have no idea. The guy I got them from has no idea either...

It does have the lock nut adjuster screw.

If someone has any idea Please let me know! These aren't the Crane ones either.
I THINK the only other ones they could possibly be, are the ones that came on 340's in '71. Maybe those are better???

Help?

Here are 273's, they do appear different?!?!?

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