More About the 1973 Corvette
1973 Corvette
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) |
|
|
| 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. | |
|
|
|
| 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) |
|
|
| 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 |
| Optional Rear Axle Ratio | 1,791 (5.88%) | $12.00 | |
| Custom Interior Trim | 13,434 (44.10%) | $154.00 | |
| 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
Notes: Base Corvette Coupe with 350 cu. in. 190 hp engine and wide ratio four speed manual transmission: $5,561.50. |
|||
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 |