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1977 Chevrolet Corvette C3
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1977 Corvette Specs

Body Specs

Wheelbase 98.0 inches
Overhand (Front) 42.4 inches
Overhang (Rear) 44.8 inches
Front Track 58.7 inches
Rear Track 59.5 inches
Length 185.2 inches
Front Fender Overall Width 69.0 inches
Rear Fender Overall Width 68.8 inches
Ground Clearance
Exhaust System to Ground
4.3 inches
Ground Clearance
Frame to Ground
5.4 inches
Ground Clearance
Rear Axle to Ground
5.7 inches
Minimum Running Clearance 4.2 inches
(Measured at Catalytic Converter)
Overall Height 48.0 inches
Rocker Panel to Ground (Front) 7.9 inches
Rocker Panel to Ground (Rear) 7.9 inches
Luggage Capacity 7.8 Cubic Feet
Cowl Height 36.6 inches
Windshield Slope Angle 57.0°
Effective Head Room 32.2 inches
Shoulder Room 47.9 inches
Hip Room 48.8 inches
Tire Size GR70 x 15B
Recommended Tire Inflation 20 PSI Cold (Front, Rear)
Wheels, Regular Production Size: 15 x 8
Synchronization All Forward Gears
Turbo Hydra-Matic (Automatic) Transmission
L48 (Base) Engine
1st Gear 2.48:1
2nd Gear 1.48:1
3rd Gear 1.00:1
Reverse Gear 2.08:1
Turbo Hydra-Matic (Automatic) Transmission
L82 Engine
1st Gear 2.52:1
2nd Gear 1.52:1
3rd Gear 1.00:1
Reverse Gear 1.94:1
Four Speed M20 Transmission 1st Gear 2.64:1
2nd Gear 1.75:1
3rd Gear 1.34:1
4th Gear 1.00:1
Reverse Gear 2.55:1
Close Ratio Four Speed
M21 Transmission
(Not available with Standard Engine)
1st Gear 2.43:1
2nd Gear 1.61:1
3rd Gear 1.23:1
4th Gear 1.00:1
Reverse Gear 2.35:1
Transmission Lubricant Type Military MIL-L-2105-B
SAE 80
Lubricant Capacity Four Speed Manual: 3 Quarts
Differential Lubricant Type Military MIL-L-2105-B
SAE 80
Differential Lubricant Capacity 4.0 pints
Axle Ratio 180 Horsepower Base Engine
3.08:1, 3.36:1
205 Horsepower L82 Engine
3.36:1, 3.55:1, 3.70:1
Transmission Synchromesh All Four Gears
Standard Fuel Tank Capacity 17 Gallons
Steering Wheel Diameter 15.0 inches
Steering Ratio 16.1:1
Wheel Turns 2.92
Turning Diameters 37.0 feet (Curb to Curb)
38.6 feet (Wall to Wall)


Weight

Model 19437 Sport Coupe (Curb)
Front: 1,690 lb.
Rear: 1,844 lb.
Total: 3,534 lb.
(Shipping)
Front: 1,710 lb.
Rear: 1,738 lb.
Total: 3,448 lb.
Shipping Weight: Weight of basic vehicle with regular equipment, including grease, oil, engine coolant to capacity and (3) gallons of gasoline.
Curb Weight: Shipping weight plus gasoline to capacity.

Power to Weight Ratio
180 Horsepower Standard L48 Engine, Four Speed Transmission:
3,834 lb.
Pounds / Horsepower: 21.30
180 Horsepower Standard L48 Engine, Automatic Transmission:
3,868 lb.
Pounds / Horsepower: 21.50
210 Horsepower L82 Engine, Four Speed Transmission:
3,838 lb.
Pounds / Horsepower: 18.28
210 Horsepower L82 Engine, Automatic Transmission:
3,896 lb.
Pounds / Horsepower: 18.55

Weight Differentials
Air Conditioning (RPO C60) +81 lb. (With Standard, L82 Engines)
(+65 lb. Front; +16 lb. Rear)
Power Windows (RPO A31) +7 lb.
(+4 lb. Front; +3 lb. Rear)
L82 Engine With Four Speed Manual Transmission: +6 lb.
With Automatic Transmission: +58 lb.
Tilt / Telescopic Steering Wheel
(RPO N37)
+3 lb.
(+3 lb. Front; +0 lb. Rear)
Standard L48 Engine
With Turbo Hydra Matic Transmission
+34 lb.
(+21 lb. Front; +13 lb. Rear)
Gymkhana Suspension +6 lb.
(+3 lb. Front; +3 lb. Rear)
Radio, AM/FM Stereophonic
(RPO U58)
+18 lb.
(+11 lb. Front; +7 lb. Rear)
Radio, AM/FM Pushbutton
(RPO U69)
+14 lb.
(+7 lb. Front; +7 lb. Rear)
Radio, AM/FM Stereophonic
With Tape Player
(RPO UM2)
+20 lb.


Engine Specs

Type: V8
Valve Location: In Head
Bore / Stroke: 4.00" / 3.48" (Standard, L82 350 Cubic Inch)
Displacement: Standard, L82 Engines: 350 Cubic Inches
Compression Ratio: 8.5:1 (Standard Engine)
9.00:1 (L82 Engine)
Crankshaft Material: Forged Steel
Camshaft Material: Cast Modular Iron (Standard L48 Engine)
Forged Steel (L82 Engine)
Oil Pump Type: Gear
Normal Oil Pressure 32 - 40 psi @ 2,000 RPM
Oil Pressure Gauge Electrical
Crankcase Oil Capacity, Standard, L82 Engines 4.0 Quarts, Less Filter
4.5 Quarts, With Filter Change
Recommended Oil Grade Above 20°F: SAE 20W-20, SAE 10W-30, 10W-40
20W-40, 20W-50
0°F to 60°F: SAE 10W, 5W-30, 10W-30, 10W-40
Below 20°F: SAE 5W-20, 5W-30
Fuel Filter Mesh Strainer
Fuel Pump Mechanical
Fuel Pressure 7.5 - 9.0 PSI
Cooling System Capacity 350 cubic inch Standard, L82 Engines
20.7 Quarts (with heater)
Thermostat Type Pellet
Radiator Cap Relief Pressure ~15 PSI
Battery 12 volt - 78 plate
3,500 Watts
Heavy Duty (RPO UA1)
12 volt - 90 plate
4,000 Watts
Thermostat Opening 192° - 198° F
Fully Opened at 227°

Brakes
Type Caliper Disc, Four Wheel Hydraulic
Lining Area 43.15 Square Inches
Swept Area 249.14 Square Inches
Disc Vented

Horsepower
Standard Engine (350 cubic inch) 180 hp @ 4,000 RPM;
Torque: 270 lb-ft @ 2,400 RPM
RPO L82 (350 cubic inch) 210 hp @ 5,200 RPM;
Torque: 255 lb-ft. @ 3,600 RPM

Ignition System
Ignition Timing Centrifugal Advance Distributor | 1103246 | Base Engine
Start: 0° @ 1,200 RPM
Intermediate: 12° @ 2,000 RPM
Maximum: 22° @ 4,200 RPM
Distributor | 1103248 | Base Engine
California, Automatic Only
Start: 0° @ 1,200 RPM
Intermediate: 12° @ 2,000 RPM
Maximum: 22° @ 4,200 RPM
Distributor | 1103256 | L82 Engine
Start: 0° @ 1,200 RPM
Intermediate: 13° @ 1,600 RPM
Maximum: 16° @ 2,000 RPM
Ignition Timing Vacuum Advance Distributor | 1103246 | Base Engine
Start: 0° @ 4 inches Hg
Maximum: 18° @ 17 inches Hg
Distributor | 1103248 | Base Engine
California, Automatic Only
Start: 0° @ 4 inches Hg
Maximum: 10° 8 inches Hg
Distributor | 1103256 | L82 Engine
Start: 0° 4 inches Hg
Maximum: 10° 8 inches Hg
Spark Plug AC Spark Plug
R45TS
Spark Plug Thread 14 mm.
Spark Plug Torque 25 lb.-ft.
Spark Plug Gap .045 inch
Firing Order 1-8-4-3-6-5-7-2
Idle Standard Engine, Manual Transmission:
700 RPM (In Neutral)
Standard Engine, Automatic Transmission:
500 RPM (In Drive)
L82 Engine, Manual Transmission:
800 RPM (In Neutral)
L82 Engine, Automatic Transmission:
700 RPM (In Drive)

1977 Corvette Options

RPO Description Production Price
A31 Power Windows 44,341 (90.10%) $116.00
B32 Color Keyed Floor Mats 36,763 (74.70%) $22.00
C49 Rear Window Defogger 30,411 (61.79%) $84.00
C60 Air Conditioning 45,249 (91.95%) $553.00
D35 Sport Mirrors 20,206 (41.06%) $36.00
FE7 Gymkhana Suspension 7,269 (14.77%) $38.00
G95 Optional Rear Axle Ratios 972 (1.98%) $14.00
K30 Speed Control 29,161 (59.25%) $88.00
L82 350 cu. in. 210hp Engine 6,148 (12.49%) $495.00
M21 4-Speed Manual Transmission, close ratio 2,060 (4.19%) n/a
M40 Turbo Hydra-Matic Automatic Transmission 41,231 (83.78%) n/a
N37 Tilt-Telescopic Steering Column 46,487 (94.46%) $165.00
NA6 High Altitude Emission Equipment 854 (1.74%) $22.00
QRZ White Letter Steel Belted Tires, GR70x15 46,227 (93.93%) $57.00
U58 AM-FM Radio, stereo 18,483 (37.56%) $281.00
U69 AM-FM Radio 4,700 (9.55%) $187.00
UA1 Heavy Duty Battery 32,882 (66.82%) $17.00
UM2 AM-FM Radio, stereo with 8-track tape 24,603 (49.99%) $414.00
V54 Luggage and Roof Panel Rack 16,860 (34.26%) $73.00
YF5 California Emission Certification 4,084 (8.30%) $70.00
YJ8 Aluminum Wheels (4) 12,646 (25.70%) $321.00
ZN1 Trailer Package 289 (0.59%) $83.00
ZX2 Convenience Group 40,872 (83.05%) $22.00

Total Production: 49,213
Coupe: 49,213 (100.00%)

Notes: Base Corvette Coupe with 350 cu. in. 180 hp engine and wide ratio four speed manual transmission: $8,647.65.

Colors

Code Exterior Quantity Interior Wheels
10 Classic White 9,408 (19.12%) Blue / Black / Brown / Buckskin / Red / Smoked Grey / White Silver
13 Silver 5,518 (11.21%) Blue / Black / Red / Smoked Grey / White Silver
19 Black 6,070 (12.33%) Black / Buckskin / Red /Smoked Grey / White Silver
26 Corvette Light Blue 5,967 (12.12%) Black / Smoked Gray / White Silver
28 Corvette Dark Blue 4,065 (8.26%) Blue / Black / Buckskin / Smoked Grey / White Silver
41 Corvette Chartreuse 1 (0.00%) Black Silver
52 Corvette Yellow 71 (0.14%) Black / Brown Silver
56 Corvette Bright Yellow 1,942 (3.95%) Black / Brown Silver
66 Corvette Orange 4,012 (8.15%) Black / Brown / Buckskin Silver
72 Medium Red 4,057 (8.24%) Black / Buckskin / Red / Smoked Grey / White Silver
80 Corvette Tan 4,588 (9.32%) Black / Brown / Buckskin Silver
83 Corvette Dark Red 3,434 (6.98%) Black / Buckskin / Smoked Grey Silver


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