The C20 is the third generation of General Motors C/K series of pickup trucks marketed by Chevrolet and GMC from 1973 to 1991. The C20 is the ¾ ton chassis type which came with a 350 V8 and a 3-speed Turbo Hydra-Matic (TH350) automatic transmission, and a 4 barrel carburetor. The Chevrolet 350 small block V8 is universally recognized for its durability and performance. Also available were the 400 cubic inch V8 and the 454 cubic inch V8 for 4WD trucks.  Third generation C/K trucks were a highly popular and longest running line of Chevy trucks, with trim levels Custom, Custom Deluxe, Cheyenne, Cheyenne Super, Scottsdale and Silverado.