The following information was provided by my friend, Adrian Clements.
For the 1971 model year, the Ford full-size cars with the H-code 351-2V engine were a mix of both Windsor and Cleveland engines (predominantly Windsors), while the Mercury full-size cars and Meteors with the H-code 351-2V engine were all Windsor engines.
For the 1972 model year, the Ford full-size cars with the H-code 351-2V engine were a mix of both Windsor and Cleveland engines (predominantly Windsors), while the Mercury full-size cars with the H-code 351-2V engine were all Cleveland engines, and the Meteors with the H-code 351-2V engine were almost entirely Windsor engines.
1. Of the 924,112 Ford full-size cars built during the 1971 model year, a total of 438,366 had the H-code 351-2V engine. Those 438,366 351-2V engines were composed of 410,353 Windsor engines and 28,013 Cleveland engines.
2. Of the 162,352 Mercury full-size cars built during the 1971 model year, a total of 11,497 had the H-code 351-2V engine, all of which were Windsor engines.
3. Of the 18,251 Meteor (Canadian) full-size cars built during the 1971 model year, a total of 10,183 had the H-code 351-2V engine, all of which were Windsor engines.
4. Of the 816,822 Ford full-size cars built during the 1972 model year, a total of 310,263 had the H-code 351-2V engine. Those 310,263 351-2V engines were composed of 251,209 Windsor engines and 59,054 Cleveland engines.
5. Of the 174,155 Mercury full-size cars built during the 1972 model year, a total of 8,646 had the H-code 351-2V engine, all of which were Cleveland engines.
6. Of the 15,281 Meteor (Canadian) full-size cars built during the 1972 model year, a total of 11,066 had the H-code 351-2V engine. Those 11,066 351-2V engines were composed of 11,049 Windsor engines and 17 Cleveland engines.
Ray