Mopar Muscle Association UK

Can I use the engine mounts from a 318 on a 360. ?

Maybe...there’s multiple threads out there, but it depends on what you have. I recently took the mounts of a B body 318 and used them for my 360 motor. The passenger side was a easy swap, but the drivers side needs a simple spacer made up as the lugs on the engine are narrower than the mounts.
On the passenger side the lugs were the reverse of the mounts, so I bolted the lower bolts on the mount to the motor and then drilled through the mount so the upper lug hole now had an upper location.
Probably sounds harder than it is. Mock it up and see what you get and put pics up.

In my case the pass side bolted straight in, the drivers side front 2 bolts lined up but the mount needed cutting and welding to pick up the rear lug.