For those with Magnums - What Mounts did you use?

Never did figure out why Chrysler had the different driver side mount (starting with the 340, continued with the 360). Would've made made more sense if both sides we're the same for all- 273 through 360.
Now, if using the mid-block magnum mounts (as in OE truck, or, say, a custom street rod app), they are the same. 318 and 360, as everyone knows.