what all do you have to change to make this work?
reason Im asking is a friend of mine has a B18A1 for cheep and Im going to replace everything in the head anyways so I was going to see what it would take to convert it to work in my hatchy

 

the block/head/intake can be used without a problem if its in good condition and your not bound by any state laws.

Electronics
you will require a OBDII injectors, distributor, OBDI/II thermostat housing with the temp sensor, some rewiring will be required (to the IAC)

Tranny/other
94+ Integra Hydro tranny from LS/GS/GSR or 92-00 hydro B-series tranny, clutch disc (at least to, as the flywheel and pressure plate will work off 90-1), all the mounts.

AXLES/Shift Linkage
90-3 axles can be used along with the half shaft (90-3), as well as the shift linkage.

ECU
for the ecu needs use OBDI PR4 or P75 ECU, to do that a harness converter is required

as you can see unless you're getting all this for free its cheaper to buy a complete LS swap

 

thanks and it6 sounds like a BEOTCH to do as well