hey guys whats up I previously got a ls motor in my civic and I blew a rod so now im getting a b20b my question is should i just use pre obd stuff from my ls motor like tranny intake manifold etc, Or should I make it obd 1 and get more stuff any help would be great also will my si harness plug in to all the connectors on the 98 block or do I have to change the sensors

 

do B20 search buddy. you'll find the answers.
well I presonally would do this
1) conversion harness to run OBD-1
2) have someone modtfiy you current harness(blownhatch or kenji)

if money is tight than jsut swap out the old LS for the B20 and keep it OBD-0.