u can put any engine in ur car u can even put a V8 in if u want and could do the fabrication so ur gonna have to be a little more specific with that question. If ur talking about what other honda/acura engines can u use well u can go any D series any B series, you can go H22 (honda prelude), or you can even go K20 or K24 its a matter of how much cash you got and skill.