I just pulled the factory one groove pulley from a 292 yesterday. PM me if you need it. Or you could run up to your local hot rod shop and purchase a GM type single or double groove pulley for a short pump and it'll work. Reason i took this one off was to install a 2 groove GM since i added power steering and needed that extra groove to run the PS pump.
Jaw, There were 2 pulleys used on F series Y blocks in 1962...one has a depth of 2 45/64"
The other has a depth of 3"...the 2nd one has a p/n C1TZ8509F...Green Sales in Ohio has 2 of them puppies..800-543-4959