94-95 Chevrolet C2500 7.4L 454Cu. V8 GAS OHV Naturally Aspirated (Water Pump, Alternator, Air Conditioning and Power Steering; w/ Air Conditioning). 99-00 Chevrolet C2500 7.4L 454Cu. V8 GAS OHV Naturally Aspirated (Water Pump, Alternator, Air Conditioning and Power Steering; w/ Air Conditioning; W/O A.P.).