1994 GMC K3500 gas dually 454 stroked to a 496, with oval port heads, engine built by Troy's Engine in Rigby, approx. 170 miles on rebuild, rebuild done September-October 2014. All brand new starter, water pump, power steering pump, alternator, hydraboost, oil coolant lines, power steering lines, brakes, serpentine belt, distributor, cap, wires, rotor, Doug Thorley headers, 3 single exhaust with flowmaster muffler. This is a great truck. We've put a lot into this truck. Have receipts for all work done. Drives and runs great!