If you only want the car to run as a grocery getter and have no performance aspirations whatsoever, the easiest solution to simply swap in another D16Z6.
If you have plans to build your Civic out, the following motors will fit.
B16A1
B16A2
B18B1
B18C1
H22A2
K20A
Bear in mind, though... that none of them will work with your D-series automatic and most would require an auto-to-manual trans conversion.
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