2 groove 331 caddy pullys ?

i have a 49 caddy with a good runnning 331 and i am thinking of installing a vintage air AC/Heater system in it... and the only major problem i see thus far is......... Are there 2 groove pulleys available for it ? and if so where can i find them ?

 

I think the waterpump pulley is the same as small block short waterpump, I have a lower double pulley.

 

well correct me if i am wrong but caddy carried that motor for many years was there ever any caddys available with the 331 and AC

 

i have a few pulleys for the 331 from different year caddys when i had my 50. will check and see what i have monday when i get home.

 

I know that the later 390 mills came with 2 groove pulleys standard and 3 groove pulleys if the car had AC.