Originally Posted by txhatch

The easiest would be a taking a si b16a out of a si and dropping it in your car. It would already have ek mounts and wiring harness. I would save for a 1.8l vtec motor, either the b18c1 or even a b18c5. B16's are gutless. Using an integra motor you will need a si rear L bracket and put the d series timing belt mount on the b series motor. You will also need to change the wiring harness. These swaps are all very common and there is tons of information if you search for it.