Yea, itll fit... Infact thats the only way to run that engine in a 4thgen or CRX (or so I heard)... Atleast the intake manifold and ECU from a B18... But honestly, unless your going CR-VTEC, I would just do a GSR swap... Youll be plenty happy... The torque those produce would be just waay to much, without having mad wheel spin... Which means more money in the suspension... Then youll also be snapping axles left and right... (again, what i heard)