360 Swap for the 65 Dart

also- will the 273 tining cover work on the 360? To let me use the 65 water pump and radiator and see my timing marks?

Yes

Where'd y'all go?

Is the oil pan on a 340 the same as the 360? this one has a truck pan and I have a 340 in the corner with the center sump...

340 pan is not the same as a 360 truck or car pan. Might be able to use the 340 pan - not sure about that. I'd use the 273 oil pan as I've read it's got specific indentations in the pan for clearance with steering components. When I do the 340 into my 65 GT 'vert, I'll use the 65 timing chain cover and tab, 273 oil pan, Schmacher conversion mounts, and dress it just like a 273/235 Commando motor.