you will only to get a long block b18cr motor, as you can use everything from your em1
pretty much take out your motor and reuse your engine loom and use the rest of your b16a parts
all you will need is a obd2a to obd2b conversion harness to run a b18cr ecu or suitable aftermarket ecu
make sure you do clutch, bearings, gaskets, timing belt, etc at the same time