The 2011 Chevrolet Silverado 2500HD is available as a 2-door, 3-seat regular side. Starting at $31,260, the 2011 Chevrolet Silverado 2500HD LT 4x2 Regular Cab is powered by a 6.0L , 8 -cylinder engine mated to an automatic transmission that returns an EPA estimated The top of the line 2011ChevroletSilverado 2500HDWork Truck 4x4 Crew Cab Long Box , priced at $ 35,595 , is powered by a 6.0L , 8 - cylinder engine mated to an automatic transmission that returns an EPA estimated