The Miller is 2.3 liters, and is completely unrelated to the KLZE. The "5" stroke cycle necessitates that. The screw type blower resides in the V. The MIller Cycle is supposed to give 4 banger fuel usage and large V6 power and torque. A miller cycle cannot work without forced induction.
Research it a bit and see what you can find. Both Probe motors should fit in our cars. The V-6 for sure and the 4 banger is a deffinate possibility. I've been looking into that one for about 2-3 months now. So if you determine that the 2.3 "miller" can fit into a Probe then it should fit into the Escort. The big thing will be the mounts. You need to see how close they are to ours and if it will bolt up or if major fabrication will be needed. The other thing you will need to do is make sure it has a return style fuel system. If not you will need to fabricate a fuel rail or switch fuel pumps. If it will bolt to the tranny, the mounts are good, and the fuel system is a go you will still need the ECU, wire harness, fuse box, blah, blah, blah. It may sound like more work then it actually is but then again it might be worse.