If it isn't already on the site, maybe one of the moderators can put in an easy accessible place for those who would need it.

Definitely a keeper.

 

http://www.crankshaftcoalition.com/wiki/RPO_(Regular_Production_Option)_GM_master_list

• General Motors build codes - http://www.crankshaftcoalition.com/wiki/General_Motors_build_codes

• General Motors RPO build codes - http://www.crankshaftcoalition.com/wiki/GM_RPO_build_codes
• More GM RPO codes -  http://www.crankshaftcoalition.com/wiki/More_GM_RPO_codes

http://toms427impala.info/CT/RPO.pdf