Alright so I found this 85 rex on craigslist and the guy said he would be willing to trade anyone with a 5 seater civic so I got to thinking maybe if the guy would throw in some cash I would trade him seems like a decent trade for me I get better gas mileage and a car I want. But the car has a bad clutch which isn't much of a problem IF my clutch from the d16y7 I still have will fit on this motor. I don't know much about the crx's of that year so if anyone has any info fill me in. Carb? mpfi? dpfi? Did I do those abreviations right? I spaced on asking him if it is the si unfortunely. How hard would it be to swap an obd-1 motor into this car such as mini me z6 head/y8 block? Could I just throw a z6 head on there with the intake manifold, ecu, and call it good? I would love any input. The guy said he would trade me and throw in $800 cash. So I am really considering it. Plus with gas prices going up this car could save me some cash. It also said he swapped in an 86 motor I asked from which model and he has yet to reply. What year did obd-1 start? Because if I am mistaken the 86 would be obd-0 right?