1967 Dodge Coronet A/C Blower motor

[snakeoil24]

Hello anyone know the rpm of the blower motor. i need to replace with a pan cake motor due to the fact blower motor sticks out to far and will not clear valve cover on Hemi valve cover. Car did not originally come with ac but im too old to do with out ac so i swapped for an ac box now i have to find a correct rpm range blower and make accomodation for blower basket