I have a 2005 Honda Accord coupe 2.4 I-vtec, and I putting a motor from a 2009 accord in it. The 2009 motor is the PZEZ motor with extra emissions that my 05 doesn’t have. Is it possible to do a full swap or do I swap the bottom half and rebuild my head?

 

I'm not sure of the differences between the motors, so you'll have to compare the differences between the 2 engines. Hopefully the new engine can be mounted properly.

You'll probably need to check what sensors are the same between the engines. When in doubt, use the 05 sensors.