Great Site for graphs and information on the powertrains GM offers:
Main site: http://www.gm.com/automotive/gmpowertrain/
Graphs and Pictures of Engines/Transmission: http://media.gm.com/us/powertrain/en/product_services/r_cars/index.html
Main site: http://www.gm.com/automotive/gmpowertrain/
Graphs and Pictures of Engines/Transmission: http://media.gm.com/us/powertrain/en/product_services/r_cars/index.html
