Should pretty much be a straight in drop. Make sure to get the harness and ECU from the Z1 though cause I'm pretty sure the B7 aint a VTEC motor and the Z1 is.

However...why do you wanna do the swap? do you just have a Z1 laying around? I just dont get why a Z1, if you're gonna take the time to swap motors. might aswell go for the better D16Y8.