The KLZE is the V6; did you mean the 170HP 4-cyl FSZE? Putting a V6 into 4-cyl car is a task likely not worth undertaking since the mounts, wiring (and even the front springs) differs vastly between the two.
If it were me, I'd spring for a rebuild of the internals (forged pistons of course, perhaps stell rods if you can find them) and turbo it. Check with TKT to see what they have for the 4-banger.
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