Hey guys I just bought a 96 EX civic coupe stick with the d16y8 vtec engine. Im not looking for HP I'm looking for MPG. At first I was looking at 92-95 vx's but every one i found was over priced or rusted out so I bought this coupe and am looking to change some things to make it more fuel efficient. Know i would like some input on my options here and what would be the best route to take. I want to try to keep costs to a min so i dont wanna do a complete engine swap just yet. I wanna know is it possible to put the z1 head or z6 ( 3 stage vtec) head on this block, and if so what parts do i need to complete this swap? will my ecu work with this head? if not what ecu should i use? will the compression be to high?