it depends on ur power goal and if u wanna go na or boost. if ur going na h22 is a decent swap . if ur going with boost gsr or k series is the way to go. btw +1 for mario he knows his shit when it comes to H motors.

edit: if ur going H series u should go with the type s swap 220hp and lsd tranny, it is $1000+ then the regular h22 swap but well worth it.