The 2002 Chevrolet Avalanche 1500 is available as a 4-door, 5-seat regular side. Starting at $31,215, the 2002 Chevrolet Avalanche 1500 4x2 is powered by a 5.3L , 8 -cylinder engine mated to an automatic transmission that returns an EPA estimated 14-mpg in the city and 18-mpg on the highway. The top of the line 2002ChevroletAvalanche 15004x4 , priced at $ 34,215 , is powered by a 5.3L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated 13-mpg in the city and 17-mpg on the highway.