I have a 1994 acura integra with the b18 and im putting it in a 1993 honda civic ex. Is there going to be anything that im going to have to swap or will it slide right in?

you are going to need some new motor mounts (hasport) the wiring harness from the b18 and possibly a shift linkage from a del sol si. also you may or may not need to find an applicable throttle cable that will work with your new setup.
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YOU WILL ALSO NEED TO USE THE T BAR ON THE BACK OF THE INTEGRA TRANS, AND USE INTEGRA MOTOR MOUNTS