Honda Prelude Forum - PreludeDriver.com

I have a 91 prelude.
Is it possible to put in a B16b or B18c in my car?
Will i have to change the brackets or mounts?

To answer your question, not really. It can be done, but no one makes the motor mounts to do this. If you know a custom machine shop, it can be done. The H22a prelude engine is the one most people swap their engines for.