The Turbo Hydra-Matic Automatic Transmission consisted of a 3-element hydraulic torque converter and compound planetary gear set. It was equipped with the following gear ratios: 1st Gear - 2.48:1, 2nd Gear - 1.48:1, and 3rd Gear - 1.00:1.
The M40 Turbo Hydra-Matic Automatic Transmission was a no-cost option with the base 350 cubic inch, 180 horsepower engine, but cost $146.00 with the optional L82 engine.
High Altitude Emission Equipment (NA6) - Alternate emission equipment installed for vehicles operating at high altitudes.
The high-altitude emission equipment was required for vehicle operation at +4,000 feet.
It was only available with the base 350 cubic inch, 180 horsepower engine and M40 transmission.
Tilt Telescopic Steering Column (N37) - An optional, adjustable steering column and tilt-angle adjustable steering wheel.
The Telescopic Steering Column changes the drivers distance from the steering wheel by literally telescoping the steering wheel closer to or further away from the vehicle operator.
A new steering column positioned the steering wheel two inches closer to the instrument panel to provide more of an "arms out" driving position, and easier entry and exit.
1977 models without option N37 were equipped with 1976 style steering wheels.
White Letter Steel Belted Tires, GR70x15 (QRZ) - Standard size tires with special raised white lettering.
Heavy Duty Battery (UA1) - Optional, heavier-duty battery with increased cranking amps/capability.
The trailer package included the Gymkhana Suspension, a higher-amp alternator and a heavy-duty radiator.
The hitch was the standard, factory installed hitch available in 1977.
The hitch could support approximately 100 pounds of tongue weight.
Convenience Group (ZX2) -A group of convenience options available to consumers when purchasing a 1977 Corvette.
The ZX2 Convenience Group included the dome light delay, headlight warning buzzer, underhood light, low fuel warning light, interior courtesy lights, and the passenger side visor mirror. Early in production, the low-fuel warning light wasn't available, so Chevrolet deleted it and reduced the cost of the option to $18.00. Quantity of low-fuel light deletes was 3,881.
A new console held heater and air conditioning controls and accepted standard Delco radios due to its increased depth.
Early 1977 option listings contained CC1 glass roof panels ($200.00) but these were never available during the 1977 model year due to a marketing exclusivity dispute between Chevrolet and the panel vendor.
Effective with 1Z37X7S427373, the alarm activator was moved from the driver-side fender to the driver-side door lock.
Between August 23 and September 7, 1976, Flint Engine changed from orange paint to blue when painting the Corvette engine blocks. As such, early 1977 Corvette engine blocks were orange while later production engines were blue.
The headlight dimmer and windshield wiper/washer controls were located on the steering column stalks.
Sunshades were redesigned to permit swinging to the side windows.
The interior rearview mirror mounting point was relocated from above the windshield to the windshield itself.
4,120 Corvettes were sold in Canada during the 1977 model year.
DISCLAIMER: While Corvsport.com makes every effort to ensure that this information is complete and accurate, you should always consult the manufacturer of your vehicle if you have a specific issue or question.