http://cgi.ebay.com/ebaymotors/OLD-STYLE...sspagenameZWDVW
http://cgi.ebay.com/ebaymotors/M-T-Alumi...sspagenameZWDVW
in the "project" type condition...
http://cgi.ebay.com/ebaymotors/m-t-valve...sspagenameZWDVW
James... I know these are not for you since you have a BB in your car, but this guy glass beaded the M/T covers. Use his item as a reference. I bet if you lower the preasure in the media blaster, and then polish the covers out with some aluminum polish they will come out near mint!
http://cgi.ebay.com/ebaymotors/Chevy-Sma...sspagenameZWDVW