Replacement Motor Mounts?

I'm not sure, if they are the same as the 63-66 "A" body mounts (I think they are).
I would have to dig out my early parts manual, to check. Mounts for the 63-66 slant six "A" body are A2304 for the right, and A2303 for the left. Available from Rockauto.com, or your local part store.