Just about every Lycoming (including the 360 series) calls for the same crank seal LW-13792.
<http://www.aircraft-specialties.com/seal-crankshaft-oil-lw-13792/>
Seal Retainer SA-641361
<http://www.aircraft-specialties.com/nose-seal-retainer-sa641361/>
I just checked and the PJ-260 site is no longer up. It had free downloads for a lot of engines. Too bad, was handy for those manuals on engines I don't have or service much.
I called Aircraft specialtys 2 weeks ago for these retainers on an Lycoming IO-360 I'm building. I didn't have a part #, they looked it up and said they were $130 each. I told them never mind. This part # shows $7, If you search it on superiors site it shows it's for continental engines, not Lycomings.