273 motor mounts --- source?

I've got 2 of the ones in post #11 on my 66 and everything bolts up correctly and works good. If you look in the factory service manual for the 106" wheelbase Valiant, it shows this type. Longer wheel bases have different ones.

Took me awhile to find out what would work because everyone leads you to the ones shown in post #5 which won't even bolt up. Dennis