I had some trouble putting the B18c in... The hardest part for me was I forgot to put the rear engine bracket on, so i had to loosen all of the motor mounts and slam the bracket in. And The B18c rear bracket wouldnt fit for some reason, so I ended up using the bracket from my B18a1. If you want to convert your car to V-Tec then you can replace the head with a V-Tec head. Hardest part on converting to V-Tec is wiring the V-Tec ... and thats a sinch. for the b18c1 swap since your integras a 90-91 Then you will have to get OBD0 injectors, an OBD0 VTEC distributor, and an OBD0 VTEC ECU. You will also either need a cable transmission or if you want to use the b18c1 tranny, you will need a cable > hydro conversion which is available at HA Sport. I've always been fond of the B16 LS-Vtec swap. Gives you mad compression, but you can put any B series V-tec head onto the LS Block if your planning on just converting your LS block. Or if you want you could just buy a nice complete engine swap for $1500 - $3000. Hope this helps...