The 2001 Chevrolet Silverado 2500HD is available as a 2-door, 3-seat regular side. Starting at $21,734, the 2001 Chevrolet Silverado 2500HD Base 4x2 Regular Cab is powered by a 6.0L , 8 -cylinder engine that returns an EPA estimated The top of the line 2001ChevroletSilverado 2500HDOnstar 4x4 Crew Cab 8' Box , priced at $ 36,397 , is powered by a 6.0L , 8 - cylinder engine that returns an EPA estimated