I believe the 92-95 VX engines (the high gas economy) engines have the engine code of D15Z1. Can this engine be put into my 89 Civic HB (which has a D15A engine) with relative ease and without much modification?

Thanks

 

has been done, i swaped one in but didnt bother with wiring it. Funny thing is that my crx was getting still good gas mileage and didnt throw any checks engines at all. And yeah, didnt even bother wiring the Evtec. Search, there are a couple of guys who have done it all the way.

 

Yes, it can be done, but I think it would be too much work.

You will need to use the motor mounts from your d15a
There is also a bracket that goes in the block where the motor mounts connects to, you will also need that one from your current engine.
Wiring will probably be the hardest things about the swap.

In order for your car to get the gas milage that the VX engine gets, you will have to run the VX ecu and for that, you will have to make your car OBD-1.
For that, you will need a 4 wire oxygen sensor, OBD-0 TO OBD-1 hopper and the VX distributor if you dont have it already.

You can use the tranny from your d15a as long as you use the clutch from that engine. It will bolt on to the VX engine.