3.6 in A-body

A mild 360 with exhaust manifolds fits relatively easy in an early A and makes for a very nice driver. Add an overdrive and some 3.91 gears with a decent converter and you’ll have a car you won’t get tired of any time soon.
A mild small block (318/360) was my thoughts until the 3G hemi came out (what Mopar lover doesn't get excited at the prospect of owning a HEMI??!) . The overdrive would need to be essential for a daily driver; do you have suggestions for the donor trans?