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1973 Specs

More About the 1973 Corvette
1973 Chevrolet Corvette C3

1973 Chevrolet Corvette C3

Close1973 Chevrolet Corvette C3

Body Specs

Wheelbase: 98.0 inches
Overhang (Front): 42.8 inches
Overhang (Rear): 43.9 inches
Front Track: 58.7 inches
Rear Track: 59.5 inches
Length: 184.7 inches
Ground Clearance: 4.3 inches
(Exhaust Pipe at X-Member)
Overall Height: 47.7 inches (Coupe)
47.8 inches (Convertible, Hard and Soft Top)
Rocker Panel to Ground (Front): 7.8 inches
Rocker Panel to Ground (Rear): 7.5 inches
Luggage Capacity: 6.1 Cubic Feet (Coupe)
5.0 Cubic Feet (Convertible)
Cowl Height: 36.3 inches
Windshield Slope Angle: 57°
Head Room: 37.1 inches (Coupe)
36.2 inches (Convertible, Soft Top)
36.1 inches (Convertible, Hard Top)
Shoulder Room: 47.9 inches
Hip Room: 48.8 inches
Tire Size: GR70-15B
Recommended Tire Inflation 20 PSI Cold (Front, Rear)
Wheels, Regular Production: Size: 15 x 8.00
Synchronization All Forward Gears
Turbo Hydra-Matic (Automatic) Transmission: 1st Gear 2.48:1
2nd Gear 1.48:1
3rd Gear 1.00:1
Reverse Gear 2.08:1
Lubricant Capacity: 3 Quarts
Four Speed M20 Transmission: 1st Gear 2.52:1
2nd Gear 1.88:1
3rd Gear 1.46:1
4th Gear 1.00:1
Reverse Gear 2.59:1
Close Ratio Four Speed
M21 Transmission :
1st Gear 2.20:1
2nd Gear 1.64:1
3rd Gear 1.27:1
4th Gear 1.00:1
Reverse Gear 2.26:1
Transmission Lubricant Type: Military MIL-L-2105-B
SAE 80
Lubricant Capacity: Four Speed Manual: 2.5 Quarts
Differential Lubricant Type: Military MIL-L-2105-B
SAE 80
Differential Lubricant Capacity: 3.7 pints
Axle Ratio: 190 Horsepower Base Engine
3.08:1, 3.36:1
250 Horsepower L82 Engine
3.55:1, 3.70:1
275 Horsepower 454 Cubic Inch LS4 Engine
3.08:1, 3.36:1 (3.55:1 with M21 Transmission)
Transmission Synchromesh: All Four Gears
Standard Fuel Tank Capacity: 18 Gallons (approximately)
Steering Wheel Diameter
(Power, Manual Steering):
15.0 inches
Steering Ratio: 16.0:1
Turning Diameters: 37.0 feet (Curb to Curb)
38.6 feet (Wall to Wall)


Weight

Model 19467 Convertible: (Curb)   
Front: 1,668 lb.
Rear: 1,746 lb.
Total: 3,414 lb.
(Shipping)   
Total: 3,333 lb.
Model 19437 Sport Coupe: (Curb)   
Front: 1,677 lb.
Rear: 1,730 lb.
Total: 3,407 lb.
(Shipping)   
Total: 3,326 lb.
Shipping Weight: Weight of basic vehicle with regular equipment, including grease, oil, engine coolant to capacity and (3) gallons of gasoline.

Weight Differentials
Auxiliary Top (RPO C07) +54 lb.
(+8 lb. Front; +46 lb. Rear)
Air Conditioning (RPO C60): +95 lb. (With Standard Engine, Manual Transmission)
(+76 lb. Front; +19 lb. Rear)
+80 lb. (With Standard Engine & Automatic Transmission)
(+64 lb. Front; +16 lb. Rear)
+90 lb. (With 454 Cubic Inch Engine)
(+72 lb. Front; +18 lb. Rear)
Power Windows (RPO A31): +7 lb.
(+4 lb. Front; +3 lb. Rear)
Power Brakes (RPO J50): +10 lb.
(+9 lb. Front; +1 lb. Rear)
Standard 350 cubic inch Engine
190 Horsepower
With Turbo Hydra Matic Transmission:
+54 lb.
(+37 lb. Front; +17 lb. Rear)
350 cubic inch L82 Engine: +42 lb.
(+36 lb. Front; +6 lb. Rear)
454 cubic inch LS4 Engine: +211 lb.
(+188 lb. Front; +23 lb. Rear)
Power Steering (RPO N40): +26 lb.
(+25 lb. Front; +1 lb. Rear)
With Standard, L82 Engines
+28 lb.
(+27 lb. Front; +1 lb. Rear)
With LS4 Engine
Radio, AM/FM Stereophonic
(RPO U58):
+18 lb.
(+9 lb. Front; +9 lb. Rear)
Radio, AM/FM Pushbutton
(RPO U69):
+14 lb.
(+7 lb. Front; +7 lb. Rear)


Engine Specs

Type:: V8
Valve Location:: In Head
Bore / Stroke:: 4.00" / 3.48" (Standard, L82 350 Cubic Inch)
4.251" / 4.00" (LS4 454 Cubic Inch)
Displacement:: Standard, L82 Engines: 350 Cubic Inches
LS4 Engine: 454 Cubic Inches
Compression Ratio:: 8.5:1 (Standard Engine)
9.0:1 (L82 Engine)
8.25:1 (LS4 Engine)
Rocker Arms: Stamping, Steel
Crankshaft Material:: Forged Steel
Camshaft Material:: Cast Alloy Iron
Oil Pump Type:: Gear
Normal Oil Pressure: 30 - 45 psi @ 1,500 RPM
50 - 75 psi @ 2,000 RPM
Oil Pressure Gauge: Mechanical
Crankcase Oil Capacity, Standard, L82 Engines: 4 Quarts, Less Filter
Crankcase Oil Capacity, LS4 Engine: 5 Quarts, Less Filter
Recommended Oil Grade: Above 20°F: SAE 20W, SAE 10W-30, 10W-40,
20W-40
0°F to 60°F: SAE 10W, 5W-30, 10W-40
Below 20°F: SAE 5W, 5W-20, 5W-30
Fuel Filter: Strainer
Fuel Pump: Mechanical
Fuel Pressure: 5¼ - 6½ PSI
Cooling System Capacity: 350 cubic inch Standard, L82 Engines
19 Quarts (with heater)
18 Quarts (without heater)
454 cubic inch LS4 Engine
24 Quarts (with heater)
23 Quarts (without heater)
Thermostat Type: Choke
Radiator Cap Relief Pressure: 15 +/- 1 PSI
Battery: 12 volt - 78 plate
62 Amp hr. @ 20 hr.
Thermostat Opening: 192° - 198°F (Base, LS4 Engines)
177° - 183°F (L82 Engine)

Brakes
Type: Caliper Disc, Four Wheel Hydraulic
Effective Area: 78.1 Square Inches
Swept Area: 461.2 Square Inches
Disc: Vented
Pistons per Caliper: Four

Horsepower
Standard Engine (350 cubic inch): 190 hp @ 4,400 RPM;
Torque: 270 lb-ft @ 2,800 RPM
RPO L82 (350 cubic inch): 250 hp @ 5,200 RPM;
Torque: 285 lb-ft. @ 4,000 RPM
RPO LS4 (454 cubic inch): 275 hp @ 4,400 RPM;
Torque: 395 lb-ft @ 2,800 RPM

Ignition System
Coil: Delco-Remy Base, L82 Engine: 1115270;
LS4: 1115287
Coil current rating: 4 amps (engine stopped)
1.8 amps (engine running)
Breaker Gap: .019"
Ignition Timing Centrifugal Advance: Distributor | 1112098 | Base Engine
Start: 1,200 RPM
Max: 14° @ 4,200 RPM
Distributor | 1112150 | L82 Engine
Start: 1,200 RPM
Intermediate: 16° @ 2,200 RPM
Max: 24° @ 5,000 RPM
Distributor | 1112114 | LS4 Engine
Start: 1,100 RPM
Intermediate: 11° @ 2,400 RPM
Max: 18° @ 4,200 RPM
Ignition Timing Vacuum Advance: Distributor | 1112098 | Base Engine
Start: 6°
Maximum: 15° @ 13.5 inches Hg
Distributor | 1112150 | L82 Engine
Start: 8°
Maximum: 15° @ 15.5 inches Hg
Distributor | 1112114 | LS4 Engine
Start: 8°
Maximum: 20° @ 17 inches Hg
Timing: Base Engine: 12° BTC @ 900 RPM (Manual)
12° BTC @ 600 RPM (Automatic)
L82 Engine: 8° BTC @ 900 RPM (Manual)
8° BTC @ 700 RPM (Automatic)
LS4 Engine: 10° BTC @ 900 RPM (Manual)
10° BTC @ 600 RPM (Automatic)
Spark Plug: AC R44T (350, 454 Cubic Inch Engines)
Spark Plug Thread: 14 mm.
Spark Plug Torque: 15 lb.-ft.
Spark Plug Gap: .033 - .038 inch
Firing Order: 1-8-4-3-6-5-7-2
Idle: Manual Transmission
Engines: 900 RPM
Base, LS4 Engines
Automatic: 600 RPM
L82 Engine
Automatic: 700 RPM

1973 Corvette Options

RPO: Description Production: Price
Custom Interior Trim 13,434 (44.10%) $154.00
Optional Rear Axle Ratio 1,791 (5.88%) $12.00
A31 Power Windows 14,024 (46.03%) $83.00
A85 Custom Shoulder Belts (standard with coupe) 788 (2.59%) $41.00
C07 Auxiliary Hardtop (for convertible) 1,328 (4.36%) $267.00
C08 Vinyl Covering (for auxiliary hardtop) 323 (1.06%) $62.00
C50 Rear Window Defroster 4,412 (14.48%) $41.00
C60 Air Conditioning 21,578 (70.83%) $452.00
J50 Power Brakes 24,168 (79.33%) $46.00
L82 350 cu. in. 250hp Engine 5,710 (18.74%) $299.00
LS4 454 cu. in. 275hp Engine 4,412 (14.48%) $250.00
M21 4-Speed Manual Transmission, close ratio 3,704 (12.16%) n/a
M40 Turbo Hydra-Matic Automatic Transmission 17,927 (58.85%) n/a
N37 Tilt-Telescopic Steering Column 17,949 (58.92%) $82.00
N40 Power Steering 27,872 (91.49%) $113.00
P02 Deluxe Wheel Covers 1,739 (5.71%) $62.00
QRM White Stripe Steel Belted Tires, GR70x15 19,903 (65.33%) $32.00
QRZ White Letter Steel Belted Tires, GR70x15 4,541 (14.91%) $45.00
T60 Heavy Duty Battery (standard with LS4) 4,912 (16.12%) $15.00
U58 AM-FM Radio, stereo 12,482 (40.97%) $276.00
U69 AM-FM Radio 17,598 (57.77%) $173.00
UF1 Map Light (on rearview mirror) 8,186 (26.87%) $5.00
YF5 California Emission Test 3,008 (9.87%) $15.00
YJ8 Cast Aluminum Wheels (5) 4 (0.01%) $175.00
Z07 Off Road Suspension and Brake Package 45 (0.15%) $369.00

Total Production: 30,464
Coupe: 25,521 (83.77%)
Convertible: 4,943 (16.23%)

Notes: Base Corvette Coupe with 350 cu. in. 190 hp engine and wide ratio four speed manual transmission: $5,561.50.
Base Corvette Convertible with 350 cu. in. 190 hp engine and wide ratio four speed manual transmission: $5,398.00.

Colors

Code Exterior Quantity Interior Soft Top Wheels
910 Classic White n/a Black / Dark Red / Dark Saddle / Midnight Blue / Medium Saddle Black / White Silver
914 Silver n/a Black / Dark Red / Dark Saddle / Midnight Blue / Medium Saddle Black / White Silver
922 Medium Blue n/a Black / Midnight Blue / M Black / White Silver
927 Dark Blue n/a Black / Dark Red / Midnight Blue / Medium Saddle Black / White Silver
945 Blue-Green n/a Black / Dark Red / Dark Saddle / Medium Saddle Black / White Silver
947 Elkhart Green n/a Black / Medium Saddle Black / White Silver
952 Yellow n/a Black / Dark Saddle / Midnight Blue Black / White Silver
953 Metallic Yellow n/a Black / Midnight Blue Black / White Silver
976 Mille Miglia Red n/a Black / Dark Red / Dark Saddle / Midnight Blue / Medium Saddle Black / White Silver
980 Orange n/a Black / Medium Saddle / Midnight Blue / Dark Saddle Black / White Silver

1973 Corvette