360 in a 65 dart

I think they will fit just fine, there's always headers..and that's another thread rich can search for cause some find it fairly easy to put them on and some have a terrible time, depending on the make of header, power steering, power brakes, and I don't know what else because I haven't tried to put a set on an a-body.
Thanks pettyblue I forgot about the driveshaft and rear if rich has the original 7 1/4...another issue would be the trans, what do you plan there?