Technically a PH16 is a locally produced D16. Not sure which version though.

In a sense there is no real specific D16 "match" to a PH16 because it's its own beast. If you want to give a PH16 VTEC capability, you can theoretically just bolt on a D16 VTEC cylinder head.

This modification works well with PH15s (which are locally produced D15s). PH15 block + D15B head = VTEC.

HTHs