It's often forgotten that on cultural issues, Reagan was closer to a libertarian than a "cultural conservative".
-Eric
There were not that many official policies broadcast during the Reagan administration that would fall under the broad rubric of "social conservatism."
Of course, there was the "Mexico City Policy", but that was done through an executive order, not as a result of some piece of legislation being signed into law.
Then there was the Meese Commission, which was pretty toothless and did not exactly stem the tide of America's growing consumption of pornography.
I think that the most enduring achievements of Ronald Reagan can be seen in the fields of domestic economic policy and in the drastic recasting of American foreign policy.