1981 360 questions / differences

I have the opportunity to purchase a documented rebuilt 1981 360 from a guy. It's never been run. He's asking $1500 along with an a-body 8 3/4" rear (I think it's got large bolt axles unfortunately). The guy's moving and needs to unload the stuff. I might even get it cheaper. He says it's got a purple cam, .40 over, stuff like that.

Are the mounting ears the same for a 1981 motor as an earlier, let's say 1970 motor? What differences are there with this motor compared to an earlier 318/340? I want to put it in my '65 Barracuda which currently has a 318.

Hope someone has some insight. Thanks.
Neil.