Hi, I'm thinking about purchasing a honda somewhere between 1987-1995 that needs an engine and swapping in a low miles one. I've owned a 93 civic hatch dx with a D15B7 and I've had a great experience with it. Before I go buying anything, I need to understand which motors will fit which vehicles with little to no modifications to everything else. Are all D series mounts interchangeable? Will a B series drop into something that had a D series with ease? Any information is greatly appreciated, I have almost no background knowledge of this.

Thanks!