Corvette: Year by Year
1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 19641965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976
1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988
1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000
2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024
Corvette Specs, Options: Year by Year
1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 19651966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978
1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991
1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017
2018 2019 2020 2021 2022 2023 2024
To learn more about the 1968 Corvette, click here.
1968 Corvette Specs
Body Specs |
|
| Wheelbase | 98.00 inches |
| Overhang (Front) | 40.2 inches |
| Overhang (Rear) | 43.9 inches |
| Front Track | 58.3 inches |
| Rear Track | 59.0 inches |
| Length (less bumpers) | 179.2 inches |
| Length | 182.1 inches |
| Front Fender Overall Width | 69.2 inches |
| Rear Fender Overall Width | 68.6 inches |
| Overall Height (Design, Coupe) | 47.8 inches |
| Front Bumper to Ground | 9.2 inches |
| Rear Bumper to Ground | 12.3 inches |
| Hood (at Rear) to Ground | 26.6 inches |
| Rocker Panel to Ground (Front) | 7.6 inches |
| Rocker Panel to Ground (Rear) | 7.6 inches |
| Bottom of Door to Ground (Closed) | 10.0 inches |
| Windshield Slope Angle | 53° |
| Body Zero to Ground (Front) | 7.6 inches |
| Body Zero to Ground (Rear) | 7.6 inches |
| Headlamp to Ground | 17.5 inches |
| Tail Lamp to Ground | 25.7 inches |
| Hood Length at Centerline | 54.4 inches |
| Body Upper Structure Length at Centerline | 54.7 inches (Coupe) |
| Front Bumper to Ground | 9.2 inches |
| Rear Bumper to Ground | 12.3 inches |
| Oil Pan to Ground | 4.8 inches |
| Front Suspension to Ground | 3.7 inches |
| Flywheel Housing to Ground | 5.2 inches |
| Exhaust System to Ground | 4.9 inches |
| Spare Tire Well to Ground | 5.1 inches |
| Minimum Running Ground Clearance | 4.9 inches |
| Head Room |
36.2 inches (Coupe)
37.1 inches (Convertible, Soft Top) 36.0 inches (Convertible, Hard Top) |
| Shoulder Room | 46.9 inches |
| Hip Room | 48.8 inches |
| Tire Size | F70-15-4PR |
| Recommended Tire Inflation | 24 PSI |
| Wheels, Regular Production | Size: 15 x 7.00 |
| Three Speed Transmission |
1st Gear 2.54:1
2nd Gear 1.50:1 3rd Gear 1.00:1 Reverse Gear 2.63:1 |
|
Turbo Hydra-Matic (Automatic) Transmission
(Not Available with L71 Engine) |
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
(Not available with L71 Engine) |
1st Gear 2.52:1
2nd Gear 1.88:1 3rd Gear 1.47:1 4th Gear 1.00:1 Reverse Gear 2.59:1 |
|
Close Ratio Four Speed
M21 Transmission (Not available with Standard Engine) |
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 |
Three Speed: 2 Quarts
Four Speed: 2.5 Quarts |
| Differential Lubricant Type |
Military MIL-L-2105-B
SAE 80 |
| Differential Lubricant Capacity | 3.7 pints |
| Axle Ratio |
Standard: 3.36:1
Turbo Hydra-Matic (Automatic): 2.73:1 Optional: 3.08:1 L36, L68, L79 Engines: 3.36:1, 3.55:1, 4.11:1 L71 Engine: 3.36:1, 3.55:1, 3.70:1, 4.11:1 |
| Transmission Synchromesh |
Three Speed: 2nd and 3rd Gears
Four Speed: All Four Gears |
| Standard Fuel Tank Capacity | 20 Gallons |
|
Steering Wheel Diameter
(Power, Manual Steering) |
16.0 inches |
| Steering Ratio | 16.0:1 |
| Wheel Turns | 3.4 |
|
|
| Model 19467 Convertible |
|
| Model 19437 Sport Coupe |
|
|
| |
|
|
|
| Three Speed Manual Transmission |
300 Horsepower Standard Engine: 3,510 lb.
Pounds / Horsepower: 11.70 |
| Four Speed Manual Transmission |
300 Horsepower Standard Engine: 3,504 lb.
Pounds / Horsepower: 11.68 |
| Four Speed Manual Transmission |
350 Horsepower L79 Engine: 3,516 lb.
Pounds / Horsepower: 10.05 |
| Four Speed Manual Transmission |
390 Horsepower L36 Engine: 3,682 lb.
Pounds / Horsepower: 9.44 |
| Four Speed Manual Transmission |
400 Horsepower L68 Engine: 3,686 lb.
Pounds / Horsepower: 9.21 |
| Four Speed Manual Transmission |
435 Hosepower L71 Engine: 3,653 lb.
Pounds / Horsepower: 8.40 |
|
Turbo Hydra-Matic
Automatic Transmission |
300 Horsepower Standard Engine: 3,573 lb.
Pounds / Horsepower: 11.91 |
|
Turbo Hydra-Matic
Automatic Transmission |
390 Horsepower L36 Engine: 3,751 lb.
Pounds / Horsepower: 9.62 |
|
Turbo Hydra-Matic
Automatic Transmission |
400 Horsepower L68 Engine: 3,755 lb.
Pounds / Horsepower: 9.38 |
|
|
|
| Power Windows (RPO A31) | +5 lb. |
| Auxiliary Top (RPO C07) | +48 lb. |
| Air Conditioning (RPO C60) | +95 lb. |
| Power Brakes (RPO J50) | +10 lb. |
| Heavy Duty Power Brakes (RPO J56) | +6 lb. |
|
427 cubic inch Engine
390 Horsepower (RPO L36) |
+178 lb. |
|
427 cubic inch Engine
400 Horsepower (RPO L68) |
+4 lb. |
|
427 cubic inch Engine
435 Horsepower (RPO L71) |
+149 lb. |
|
327 cubic inch Engine
350 Horsepower (RPO L79) |
+12 lb. |
| Aluminum Cylinder Heads (RPO L89) | -73 lb. |
| Four Speed Transmission (RPO M20) | -6 lb. |
| Turbo Hydra-Matic (Automatic) Transmission (RPO M40) | +63 lb. |
| Power Steering (RPO N40) | +21 lb. |
| Radio AM - FM Pushbutton (RPO U69) | +16 lb. |
| Radio Stereo Equipment (RPO U79) | +11 lb. |
| Power Brakes | +10 lb. |
|
|
| Type: | V8 |
| Valve Location: | In Head |
| Bore / Stroke: |
4.00" / 3.25" (Standard, L79 327 Cubic Inch)
4.25" / 3.76" (L36, L72 427 Cubic Inch) |
| Displacement: |
Standard, L79: 327 Cubic Inches
L36, L68, L71: 427 Cubic Inches |
| Compression Ratio: |
10.0:1 (Standard Engine)
10.25:1 (L36, L68 Engines) 11.0:1 (L71, L79 Engines) |
| Rocker Arms | Stamping, Steel |
| Rocker Arm Ratio | 1.5:1 |
|
Valve Train Lash, Inlet / Exhaust
Hydraulic Lifters |
Zero |
|
Valve Train Lash, Inlet / Exhaust
Mechanical Lifters (RPO L72) |
Inlet: .024 inch
Exhaust: .028 inch |
| 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, L79 Engines |
4 Quarts, Less Filter
5 Quarts, With Filter |
| Crankcase Oil Capacity, L36, L68, L71, L88 and L89 Engines |
5 Quarts, Less Filter
6 Quarts, With Filter |
| Recommended Oil Grade |
Above 32°: SAE 20W, SAE 10W-30
To 0°: SAE 10W or SAE 10W-30 Below 0°: SAE 5W or SAE 5W-20 |
| Fuel Filter | Strainer |
| Fuel Pump | Mechanical |
| Fuel Pressure | 5¼ - 6½ PSI |
| Cooling System Capacity |
327 cubic inch Engines
16 Quarts (with heater) 15 Quarts (without heater) 427 cubic inch Engines 23 Quarts (with heater) 22 Quarts (without heater) |
| Thermostat Type | Choke |
| Radiator Cap Relief Pressure | 15 +/- 1 PSI |
| Battery |
12 volt
61 Amp hr. @ 20 hr. 6 cells / 66 Plates |
| Thermostat Opening | 192° - 198° F |
|
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 (327 cubic inch) |
300 hp @ 5,000 RPM;
Torque: 360 lb-ft @ 3,400 RPM |
| RPO L79 (327 cubic inch) |
350 hp @ 5,800 RPM;
Torque: 360 lb-ft. @ 3,600 RPM |
| RPO L36 (427 cubic inch) |
390 hp @ 5,200 RPM;
Torque: 460 lb-ft @ 3,600 RPM |
| RPO L68 (427 cubic inch) |
400 hp @ 5,400 RPM;
Torque: 460 lb-ft @ 3,600 RPM |
| RPO L71 (427 cubic inch) |
435 hp @ 5,800 RPM;
Torque: 460 lb-ft @ 4,000 RPM |
|
Ignition System |
|
| Coil | Delco-Remy 1115202 Base, L79; 1115264 L36, L68; 1111141 L36; 1115210 L71 |
| Coil current rating |
4 amps (engine stopped)
1.8 amps (engine running) |
| Breaker Gap | .019" (New) |
|
Ignition Timing
Initial Design Setting |
6° @ 500 RPM (Standard Engine)
10° @ 700 RPM (L79 Engine) 4° @ 550 RPM (L36, L68 Engines) 4° @ 750 RPM (L71 Engine) |
| Ignition Timing Centrifugal Advance |
Begins: 900 RPM (Standard, 427 Engines)
950 RPM (L79 Engine) 15° @ 1,500 RPM (Standard); 20°: @ 1,800 RPM (L79 Engine) 17° @ 2,000 RPM (L36, L68 Engines); Max: 30° @ 5,100 RPM (Standard Engine); Max: 30° @ 4,700 RPM (L79 Engine); Max: 32° @ 5,000 RPM (L36, L68 Engines) Max: 30° @ 3,800 RPM (L71 Engine) |
| Ignition Timing Vacuum Advance |
Begins: 6 inches Hg (Standard Engine)
Maximum: 15° @ 12 inches Hg Begins: 6 inches Hg (L79 Engine) Maximum: 15° @ 15.5 inches Hg Begins: 7 inches Hg (L36, L68 Engines) Maximum: 12° @ 12 inches Hg Begins: 8 inches Hg (L71 Engine) Maximum: 15° @ 15.5 inches Hg |
| Spark Plug |
AC44 (327 Cubic Inch Engines)
AC43N (427 Cubic Inch Engines) |
| Spark Plug Thread | 14 mm. |
| Spark Plug Torque | 25 lb.-ft. |
| Spark Plug Gap | .033 - .038 inch |
| Firing Order | 1-8-4-3-6-5-7-2 |
1968 Corvette Options
| RPO | Description | Production | Price |
| Genuine Leather | 2,429 (8.50%) | $79.00 | |
| A01 | Soft Ray Tinted Glass, all windows | 17,635 (61.73%) | $15.80 |
| A02 | Soft Ray Tinted Glass, windshield | 5,509 (19.29%) | $10.55 |
| A31 | Power Windows | 7,065 (24.73%) | $57.95 |
| A82 | Headrests | 3,197 (11.19%) | $42.15 |
| A85* | Custom Shoulder Belts | 350 (1.23%) | $26.35 |
| C07 | Auxiliary Hardtop (for convertible) | 8,735 (30.58%) | $231.75 |
| C08 | Vinyl Covering (for auxiliary hardtop) | 3,050 (10.68%) | $52.70 |
| C50 | Rear Window Defroster | 693 (2.43%) | $31.60 |
| C60 | Air Conditioning | 5,664 (19.83%) | $412.90 |
| F41 | Special Front and Rear Suspension | 1,758 (6.15%) | $36.90 |
| G81 | Positraction Rear Axle, all ratios | 27,008 (94.55%) | $46.35 |
| J50 | Power Brakes | 9,559 (33.46%) | $42.15 |
| J56 | Special Heavy Duty Brakes | 81 (0.28%) | $384.45 |
| K66 | Transistor Ignition System | 5,457 (19.10%) | $73.75 |
| L36 | 427 cu. in. 390hp Engine | 7,717 (27.01%) | $200.15 |
| L68 | 427 cu. in. 400hp Engine | 1,932 (6.76%) | $305.50 |
| L71 | 427 cu. in. 435hp Engine | 2,898 (10.14%) | $437.10 |
| L79 | 327 cu. in. 350hp Engine | 9,440 (33.05%) | $105.35 |
| L88 | 427 cu. in. 430hp Engine | 80 (0.28%) | $947.90 |
| L89 | Aluminum Cynlinder Heads for L71 | 624 (2.18%) | $805.75 |
| M20 | 4-Speed Manual Transmission | 10,760 (37.67%) | $184.35 |
| M21 | 4-Speed Manual Transmission, close ratio | 12,337 (43.19%) | $184.35 |
| M22 | 4-Speed Manual Transmission, close ratio, heavy duty | 80 (0.28%) | $263.30 |
| M40 | Turbo Hydra-Matic Automatic Transmission | 5,063 (17.72%) | $226.45 |
| N11 | Off Road Exhaust System | 4,695 (16.44%) | $36.90 |
| N36 | Telescopic Steering Column | 6,477 (22.67%) | $42.15 |
| N40 | Power Steering | 12,364 (43.28%) | $94.80 |
| P01 | Bright Metal Wheel Cover | 8,971 (31.40%) | $57.95 |
| PT6 | Red Stripe Tires, F70x15, nylon | 11,686 (40.91%) | $31.30 |
| PT7 | White Stripe Tires, F70x15, nylon | 9,692 (33.93%) | $31.30 |
| U15 | Speed Warning Indicator | 3,453 (12.09%) | $10.55 |
| U69 | AM-FM Radio | 24,609 (86.15%) | $172.75 |
| U79 | AM-FM Radio, stereo | 3,311 (11.59%) | $278.10 |
| UA6 | Alarm System | 388 (1.36%) | $26.35 |
|
Total Production:
28,566
Notes: Base Corvette Coupe with 327 cu. in. 300 hp engine and three speed manual transmission: $4,663.00. |
|||
Colors
| Code | Exterior | Quantity | Interior | Soft Top | Wheels |
| 900 | Tuxedo Black | 708 (2.48%) | Black / Dark Blue / Dark Orange / Gunmetal / Medium Blue / Red / Tobacco | Black / White / Beige | Silver |
| 972 | Polar White | 1,868 (6.54%) | Black / Dark Blue / Dark Orange / Gunmetal / Medium Blue / Red / Tobacco | Black / White / Beige | Silver |
| 974 | Rally Red | 2,918 (10.21%) | Black / Red | Black / White / Beige | Silver |
| 976 | LeMans Blue | 4,722 (16.53%) | Black / Medium Blue / Dark Blue | Black / White / Beige | Silver |
| 978 | International Blue | 2,473 (8.66%) | Black / Medium Blue / Dark Blue | Black / White / Beige | Silver |
| 983 | British Green | 4,779 (16.73%) | Black | Black / White / Beige | Silver |
| 984 | Safari Yellow | 3,133 (10.97%) | Black | Black / White / Beige | Silver |
| 986 | Silverstone Silver | 3,435 (12.02%) | Black / Dark Blue / Gunmetal | Black / White / Beige | Silver |
| 988 | Cordovan Maroon | 1,155 (4.04%) | Black | Black / White / Beige | Silver |
| 992 | Corvette Bronze | 3,374 (11.81%) | Black / Dark Orange / Tobacco | Black / White / Beige | Silver |
