1985 Corvette Pricing, Factory Options, & Colors

Base Corvette Roadster (1YY07)

• The base price of the 1985 Chevrolet Corvette Coupe without any optional equipment.
• The 1985 Corvette saw the return of true fuel injection with the introduction of the Tuned-Port Fuel
• Injection system that came standard with the more powerful L98 V-8 engine.
• A 350 cubic inch, 230 horsepower engine, 4-speed automatic transmission, removable body-color roof panel, and cloth seats were included in the base price.

Power Driver Seat (AG9)

• Optional, six-way, adjustable driver seat.

Sports Seat, Leather (AQ9)

• Special sport seats that featured inflatable lumbar support and power-adjusted side bolsters.
• The sports seat option, (which was available only in cloth in 1984), became available in leather as an interim 1985 option.
• Leather seats sold in 1985 totaled 30,955 units, which included both the optional base seat in leather as well as the optional sport seat in leather.

Base Seats, Leather (AR9)

• Leather cover option for the standard, base driver and passenger seats.

Sports Seat, Cloth (—-)

• Special sport seats that featured inflatable lumbar support and power-adjusted side bolsters.
• Optional cloth version of the AQ9 option.

Power Door Locks (AU3)

• Electronic locking system that replaced standard, manual door locks.

Removable Transparent Roof Panel (CC3)

• Single piece, glass roof panel that gives driver an “open air” feel while driving.
• All 1985 Corvettes were designed with one-piece, lift-off roof panels and rear hatch windows.
• For 1985, the removable glass roof panel was manufactured with stronger sun screening.

Two Tone Paint (D84)

• Optional paint scheme that allowed buyers the option of three, different, two-tone paint combinations.
• Options included Silver/Grey, Light Blue/Medium Blue, and Light Bronze/Dark Bronze.

Delco-Belstein Shock Absorbers (FG3)

• Gas shock absorbers with valving revised for improved ride.
• The FG3 option offered the Z51’s upgraded shocks without buying the full Z51 suspension package.
• A joint venture between AC-Delco and premium shock manufacturer Bilstein, these stiffer shocks offered a firmer ride and improved handling characteristics.

Performance Axle Ratio (G92)

• Optional performance axle ratio of 3.07:1.
• Was only offered when the Corvette was ordered with an automatic transmission.
• The actual “Performance Axle Ratio” varied from year to year. The G92 Option was available when ordering either the Corvette or the Camaro throughout the 1980’s and early ’90’s.
• Cruise Control (K34)
• Automatic electric cruise control with “resume” and “accelerate” options.

4-Speed Manual Transmission (MM4)

• Optional manual transmission that was offered as a zero dollar upgrade.
• A “4+3”, 4 speed manual transmission that was originally developed and built by Doug Nash Company.
• The “4+3” transmission had overdrives in the top three gears for improved fuel economy.
• In 1985, the 4+3 Manual Transmission came with a new, heavy duty 8.5 inch ring differential.
• The manual transmission overdrive selector button was moved from the console to the shift knob itself.
  Rear axle gear ratios for manual transmission models was 3.07:1.

California Emission Requirements (NN5)

• Revised emission/exhaust components to meet California Emission standards

Radio Delete (UL5)

• Optional removal of any stereo components from the Corvette.

AM-FM Stereo Cassette (UM6)

• Electronically tuned stereo radio with cassette.

AM-FM Stereo, Citizens Band (UN8)

• AM/FM stereo system with citizens band radio and hand held transmitter/microphone.

Stereo System, Delco-Bose (UU8)

• Delco Bose AM/FM stereo radio with cassette.

Heavy Duty Cooling (V08)

• Optional, three (3) core aluminum radiator.
• Includes larger diameter transmission cooler.

Performance Handling Package (Z51)

• Heavy Duty Steering and Suspension Upgrade for Improved Handling.
• Included heavy-duty front and rear springs, shock absorbers, stabilizer bars and bushings, fast steering ratio, engine oil cooler, extra radiator fan (pusher), P255 / 50VR16 tires and directional alloy wheels (16 x 8.5 (front) and 16 x 9.5 (rear)).
• Suspension rates were lowered in 1985 as a result of harsh ride criticisms from the previous model year.
• Springs for the base suspension were softer by 26% in front and 25% in the rear. Springs included in the
• Z51 option were 16% softer in the front and 25% softer in the rear.
• To compensate for the spring change, larger diameter stabilizer bars were included with Z51 equipped models.

Rear Window + Side Mirror Defoggers (Z6A)

• Components were equipped with heating elements (wire) for defogging.
• The C4 Corvette used vertically run wire through it’s rear window to achieve proper and timely defogging.