Convert NAD27 Data to NAD83

Here's a link to a helpful utility web page that will convert NAD27 numeric data to NAD83 and visa versa.

http://www.ngs.noaa.gov/cgi-bin/nadcon.prl

NAD27 and NAD83 coordinates can be drawn in AutoCAD, but only as inert points.

NAD27 and NAD83 coordinates can be accurately plotted and converted graphically (NAD27 to NAD83 or vice versa) in AutoDesk Civil 3D, Autodesk Map, Autodesk Land Development Desktop and ESRI GIS.