WebCars! The Corvette Story

Sell - Buy a Corvette
1985 Chevrolet Corvette Brochure Scan
To learn more about the 1985 Corvette, click here.

1985 Corvette Specs

Body Specs

Wheelbase 96.2 inches
Overhand (Front) 40.5 inches
Overhang (Rear) 39.7 inches
Front Track 59.6 inches
Rear Track 60.4 inches
Length 176.5 inches
Ground Clearance
Differential to Ground
6.8 inches
Ground Clearance
Front Bumper to Ground
4.9 inches
Ground Clearance
Rear Bumper to Ground
13.0 inches
Minimum Ground Clearance 4.7 inches
(Measured at Catalytic Converter)
Overall Height 46.4 inches
Rocker Panel to Ground (Front) 6.9 inches
Rocker Panel to Ground (Rear) 6.9 inches
Cargo Capacity 100 lbs. / 17.9 cubic feet
Liftover Height: 35.7 Inches
Cargo Length at Floor: 33.0 inches
Cowl Height 35.4 inches
Windshield Slope Angle 64.0°
Effective Head Room 36.4 inches
Shoulder Room 54.0 inches
Hip Room 49.3 inches
Tire Size P225/50VR-16 (Eagle VR, Goodyear)
Wheel Size 16" x 8.5" (Front and Rear)
With Z51 Performance Handling Package
Front: 16" x 8.5"; Rear: 16" x 9.5"
Recommended Tire Inflation 35 PSI Front; 32 PSI Rear
Manual Four Speed Transmission 1st Gear 2.88:1
2nd Gear 1.91:1 (1.28:1 Overdrive)
3rd Gear 1.33:1 (0.89:1 Overdrive)
4th Gear 1.00:1 (0.67:1 Overdrive)
Reverse Gear 2.78:1
Turbo Hydra-Matic (Automatic) Transmission 1st Gear 3.06:1
2nd Gear 1.63:1
3rd Gear 1.00:1
4th Gear 0.70:1
Reverse Gear 2.29:1
Turbo Hydra-Matic (Automatic) Transmission
Dextron II
8.0 Pints
Maximum Uphill Speed
(Wide Open Throttle)
1 > 2: 41 MPH
2 > 3: 75 MPH
3 > 4: 110 MPH
Differential Lubricant Type
Manual Transmission
GL-5 (Dextron II for Overdrive)
SAE 80W, SAE 80W-90
Extreme Cold: SAE 80W
Axle Ratio 3.07:1 (Manual Transmission)
2.73:1 (Automatic Transmission)
3.31:1 (Optional)
Standard Fuel Tank Capacity 20 Gallons
Steering Ratio 15.5:1
13.0:1 (Performance Handling Package, RPO Z51)
Steering Wheel Diameter 14.5 inches
Wheel Turns 2.36
1.96 (Performance Handling Package, RPO Z51)
Turning Diameters
Outside Front
41.4 feet (Wall to Wall)
40.1 feet (Curb to Curb)

EPA Fuel Economy

Manual City: 15
Highway: 20
Combined: 17
Automatic City: 15
Highway: 21
Combined: 17


Model 1YY07 Sport Coupe Curb Mass with Four Speed Manual Transmission
Front: 1,640 lb.
Rear: 1,576 lb.
Total: 3,216 lb.
Shipping: 3,111 lb.
Curb Mass with 700-R4 Automatic Transmission
Front: 1,641 lb.
Rear: 1,583 lb.
Total: 3,224 lb.
Shipping: 3,121 lb.
Curb Weight: The calculated weight of a vehicle with standard equipment, only as designed with the additional load of oils, lube, coolants and fuel filled to capacity.
Shipping Weight: Same as base curb weight except 3 gallons of gasoline.

Weight Differentials
Removeble Plastic Roof Panel
-4.0 lb.
(-0.9 lb. Front; -3.1 lb. Rear)
Power Door Lock System
+1.8 lb.
(+0.9 lb. Front; +0.9 lb. Rear)
Power Seat, Six Way Driver Seat
-12.3 lb.
(+3.5 lb. Front; -15.9 lb. Rear)
Electric Defogger System
Rear Window and Side Mirror
+1.3 lb.
(+0 lb. Front; +1.3 lb. Rear)
Performance Handling Package
(RPO Z51)
+19.4 lb.
(+13.2 lb. Front; +6.2 lb. Rear)
Automatic Speed Control
With Resume Speed
(RPO K34)
+2.7 lb.
(+2.3 lb. Front; +0.4 lb. Rear)
Radio AM / FM Stereo with Cassette
Includes Power Rear Antenna plus Two Front and Rear Speakers
+3.5 lb.
(+2.6 lb. Front; +0.9 lb. Rear)
Universal CB Radio
Includes Tri-Band Power Antenna
+4.4 lb.
(+2.0 lb. Front; +2.4 lb. Rear)
Premium Audio System
+15.4 lb.
(+5.7 lb. Front; +9.7 lb. Rear)
Radio Delete (RPO UL5) -9.6 lb.
(-4.8 lb. Front; -4.8 lb. Rear)
Full Feature Sports Seats
+5.4 lb.
(+4.0 lb. Front; +1.4 lb. Rear)
Four Speed Manual Transmission
-9.7 lb.
(-4.4 lb. Front; -5.3 lb. Rear)
Custom Two Tone Paint
(RPO D84)
+0.8 lb.
(+0.4 lb. Front; +0.4 lb. Rear)

Engine Specs

Type: V8
Valve Location: In Head
Bore / Stroke: 4.00" / 3.48"
Displacement: 350 Cubic Inches
(5.7 Liters)
Compression Ratio: 9.0:1
Cylinder Head Material: Cast Alloy Iron
Cylinder Block Material: Cast Alloy Iron
Oil Pump Type: Gear
Cooling System Capacity 14.65 Quarts (Manual Transmission)
14.51 Quarts (Automatic Transmission)
Radiator Cap Relief Pressure 15 PSI
Battery 12 volt - 550 Cold Cranking Amps (CCA)
54 Amp-hours

Fuel System
Type Electronic Fuel Injection - Tuned Port Injection
Fuel Pump Electric, Dual Turbine - In Fuel Tank
System Pressure 11.0 PSI
Point of Injection Fuel Injectors at Inlet Ports
Flow Pulse

Standard Engine (350 cubic inch) 230 hp @ 4,000 RPM;
Torque: 330 lb-ft @ 3,200 RPM

Ignition System
Spark Plug R43TS
Make: AC
Spark Plug Thread M14 x 1.25
Spark Plug Gap .045 inch
Spark Plug Tightening Torque 7 - 15 lb. - ft.

Type Disc with Sliding Head Caliper - low drag
Effective Area 27.0 Square Inches (Front)
18.3 Square Inches (Rear)
Gross Lining Area 27.0 Square Inches (Front)
18.3 Square Inches (Rear)
Swept Area 96.4 Square Inches (Front)
87.5 Square Inches (Rear)
Rotor Outer Working Diameter: 11.5 inches
Inner Working Diameter:
8.42 Inches (Front), 8.75 Inches (Rear)
Type and Material: Gray Cast Iron (Front)
Damped Iron (Rear)

1985 Corvette Options

RPO Description Production Price