You can look up which Honda models have the D16Y8, and which have the D16Y7,
http://www.superhonda.com/tech/honda_engine_codes.html . The engines appear
to be the same displacement, but one is VTEC, 127 hp and the other is
non-VTEC, 106 hp.
Checking part numbers at www.hondaautomotiveparts.com or www.slhonda.com
(parts online) indicates the oil pans are not identical. Studying the two
drawings closely does indicate some geometric differences, for one. Or just
look at the two gaskets.
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