True factory LS4, 454V8 4BBL, 4-speed manual transmission with limited slip rear end with 3:08 gears. Factory Air conditioning, factory tach, tilt/telescopic column, power windows, 4-wheel power disc brakes, and original factory AM-FM radio. All numbers match, to include the engine, transmission and rear drive axle. According to the seller's research, there were less than 300 convertibles built in 1973 equipped with the LS4 engine and 4-speed manual transmission. However, it is believed that less than 100 were built with the Factory Air Conditioning making this a very rare Corvette. 1973 is the only year with a front Urethane Bumper and chrome rear Bumper. This Corvette is in excellent condition and a pleasure to drive.