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152-400: (Redirected from ZR1 ) Chevrolet Corvette ZR-1 may refer to: Chevrolet Corvette C3 ZR1 (produced 1970–1972) Chevrolet Corvette C4 ZR1 (produced 1990–1995) Chevrolet Corvette C6 ZR1 (produced 2009–2013) Chevrolet Corvette C7 ZR1 (produced in 2018 + 2019 as a 2019 model) Chevrolet Corvette C8 ZR1 (Production started in 2024 as

304-470: A bottle or hub dynamo . The first horseless carriages used carriage lamps, which proved unsuitable for travel at speed. The earliest lights used candles as the most common type of fuel. The earliest headlamps, fuelled by combustible gas such as acetylene gas or oil, operated from the late 1880s. Acetylene gas lamps were popular in 1900s because the flame is resistant to wind and rain. Thick concave mirrors combined with magnifying lenses projected

456-435: A 1978 L82 to 60 mph (97 km/h) in just 6.6 seconds, 127 mph (204 km/h) flat out, and covered the quarter-mile in 15.3 seconds at 95 mph. 1979 saw the crossed-flag emblems on the nose and fuel door revert to those seen on the '77 model. Three popular features introduced on the '78 pace car replicas made it into this year's production: the new bucket seats, the front and rear spoiler package, and

608-546: A 2025 model) [REDACTED] Index of articles associated with the same name This set index article includes a list of related items that share the same name (or similar names). If an internal link incorrectly led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Chevrolet_Corvette_ZR-1&oldid=1257595285 " Category : Set index articles Hidden categories: Articles with short description Short description

760-506: A 3-speed manual transmission were standard, but only a few hundred 3-speed manual equipped cars were sold. The 4-speed manual was available in M20 wide-ratio or M21 close-ratio transmission versions. The M22 “Rock Crusher”, a heavy duty, close-ratio 4-speed gearbox, was also available for certain applications. The engine line-up included the L79, a 350 hp (261 kW) high performance version of

912-429: A 4,000-mile (6,400 km) road trip to Alaska. C&D summarized: "The Corvette was a big hit–we expected and thoroughly enjoyed that–but we were surprised at how well it withstood the ordeal...once we recovered from the trip we conceded that we'd developed new respect for a car we'd long regarded as something of a put on. In every sense of the word, our Yukon Corvette proved to be tough and we'd have to say that even

1064-555: A Silver Anniversary model in his favorite color - silver, appropriately enough - and it appeared as the $ 399 B2Z option package. The first two-tone paint option offered since 1961, it presented silver over a gray lower body with a separating pinstripe, plus aluminum wheels and dual "sport" outside mirrors as mandatory options, which added another $ 380 to the cost. 6,502 Indy 500 Pace car replica editions were produced featuring Black/silver two-tone paint, front and rear spoilers, mirror-tint roof panels and contoured sport seats. Reviewers praised

1216-490: A box-section aluminum impact bar on two Omark-bolt slider brackets similar to the system used in the nose which allowed the Corvette to pass federal five-mph impact tests at the rear as well as the front. The new rear design was more up-to-date than the 60's shape that it replaced with the vast majority of enthusiasts embracing the new design. For the 1974 model only, casting limitations mandated left and right bumper covers with

1368-438: A digital clock, the quartz analog instrument panel clock was replaced with an oil temperature gauge. The cast aluminum wheels, optional since ’76, were now ordered on 90 percent of the cars at a cost of $ 428. New options included a power adjustable driver’s seat and power remote outside mirrors. In mid-1981 production relocated from St. Louis to Bowling Green, Kentucky , and several two-tone paint options were offered. 1982 saw

1520-402: A distribution of light designed to provide forward and lateral illumination, with limits on light directed towards the eyes of other road users to control glare. This beam is intended for use whenever other vehicles are present ahead, whether oncoming or being overtaken. The international ECE Regulations for filament headlamps and for high-intensity discharge headlamps specify a beam with

1672-463: A downward/leftward bias to show the driver the road and signs ahead without blinding oncoming traffic. Headlamps for right-traffic countries have low beams that "dip to the right", with most of their light directed downward/rightward. Within Europe, when driving a vehicle with right-traffic headlamps in a left-traffic country or vice versa for a limited time (as for example on vacation or in transit), it

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1824-486: A few areas, illegal to drive above this speed at night. Some countries require automobiles to be equipped with daytime running lights (DRL) to increase the conspicuity of vehicles in motion during the daytime. Regional regulations govern how the DRL function may be provided. In Canada, the DRL function required on vehicles made or imported since 1990 can be provided by the headlamps, the fog lamps , steady-lit operation of

1976-496: A forged steel crankshaft , 4-bolt main block , 11:1 compression ratio , impact extruded pistons, high-lift camshaft , low-restriction exhaust , aluminum intake manifold , 4-barrel carburetor , and finned aluminum rocker covers . The new engine, making up less than 8% of production, could not be ordered with air conditioning but was fitted with a domed hood adorned with “LT1” decals. Motor Trend in May 1970, clocked an LT1 covering

2128-442: A half-mile per gallon. A bigger hit were the glass mirror-tint roof panels, now a regular option, with nearly 15,000 cars so fitted despite their costing $ 365. All T-tops were now wired into the standard anti-theft alarm system. Tungsten-halogen high-beam headlights became standard as did an AM-FM radio, and for the first time a cassette tape player could be added as a $ 234 option. Heavy duty shock absorbers could now be ordered without

2280-437: A left- or a right-traffic low beam by means of a two-position bulb holder. Because wrong-side-of-road headlamps blind oncoming drivers and do not adequately light the driver's way, and blackout strips and adhesive prismatic lenses reduce the safety performance of the headlamps, some countries require all vehicles registered or used on a permanent or semi-permanent basis within the country to be equipped with headlamps designed for

2432-425: A new convenience group. Cruise control was only available on cars with automatic transmissions. The convenience group included dome light delay, headlight warning buzzer, underhood light, low fuel warning light, interior courtesy lights, and passenger side visor mirror. The black exterior paint color returned (last offered in 1969). Unchanged was the horsepower ratings for both base and L82 engines. Early in production,

2584-409: A no-cost option. A redesigned center console permitted universal Delco radio options. One consequence of this modification was that an 8-track tape player was now available as an option. Auxiliary gauges were restyled and the ammeter was replaced with a voltmeter . The sun visors were redesigned to swivel so as to provide some glare protection from the side as well as the front. Chevrolet responded to

2736-443: A quieter ride, guard beams and a nose job." Indeed, redesigned body mounts and radial tires did improve Corvette's ride, and interior sound levels were reduced by 40%. The chrome rear bumper was essentially carried over from the previous year. However, the chrome blade front bumper was dropped for the federally required 5 mph (8.0 km/h) standard for a light-weight front bumper system with an inner transverse tube attached to

2888-413: A record that stands to this day. In 1980, both front and rear bumper covers were restyled with brand new integrated aerodynamic spoilers that resulted in a significant reduction in drag and increased radiator air flow. The hood was also restyled as well. The crossed-flag emblems disappeared from the front fenders and were revised to a more elongated style on the nose and fuel door. L82 emblems moved from

3040-448: A revised suspension with special springs, shocks, stabilizer bar, and spindle-strut shafts. Since it was competition equipment, the ZR1 could not be ordered with power windows, power steering, air conditioning, a rear-window defogger, wheel covers, or a radio. Only 53 1970-1972 ZR1's were built (25 in 1970, including 8 convertibles, 8 in 1971, and 20 in 1972). The ZR2 special engine package

3192-613: A sharp, asymmetric cutoff preventing significant amounts of light from being cast into the eyes of drivers of preceding or oncoming cars. Control of glare is less strict in the North American SAE beam standard contained in FMVSS / CMVSS 108 . High beam (main beam, driving beam, full beam) headlamps provide a bright, center-weighted distribution of light with no particular control of light directed towards other road users' eyes. As such, they are only suitable for use when alone on

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3344-686: A tri-power; The L89 option was the L71 engine but with much lighter aluminum cylinder heads rather than the standard cast iron. Then there was the L88 engine that Chevrolet designed strictly for off-road use (racing), with a published rating of 430 hp (321 kW), but featured a high-capacity 4-barrel carb, aluminum heads, a unique air induction system, and an ultra-high compression ratio (12.5:1). All small block cars had low-profile hoods. All big block cars had domed hoods for additional engine clearance with twin simulated vents and “427” emblems on either side of

3496-418: A vacuum operated system rather than electrically as on the previous generation, and the new hide-away windshield wipers utilized a problematic vacuum door. The door handles were flush with the top of the doors with a separate release button. Front fenders had functional engine cooling vents. Side vent windows were eliminated from all models, replaced with "Astro Ventilation", a fresh air circulation system. In

3648-700: A vanishing breed by ‘72, and the Stingray was no exception. It sold only 6,508 copies, amounting to 9% of the market, placing it number three; it was beaten by the number one-selling Cutlass Supreme , with 11,571, but beat the Impala 's 6,456 and the Mustang 's 6,401. Rare options: ZR1 special engine package (20), shoulder belts with convertibles (749), LT1 engine option (1,741). The 1973 model year started Corvette's transformation from muscle to touring sports car. A Chevrolet advertisement headlined: "We gave it radials,

3800-434: A vertical center seam. The anti-theft alarm key activator was moved from the rear panel to the front left fender. Tailpipes were now turned down as the new bumper cover eliminated the tailpipe extensions. Car and Driver magazine said: "...We think the front and rear together produce a 'molded' shape that speaks of function rather than decor." Chevrolet commented on the new tailpiece in the '74 Corvette sales brochure: “Take

3952-506: A wide-ratio 4-speed manual transmission were now standard. The 350 cu in (5.7 L) base engine (ZQ3) remained at 300 hp (224 kW) and the L46 was again offered as a 350 hp (261 kW) high performance upgrade. New was the LT1 , a 350 cu in (5.7 L) small-block V8 engine delivering a factory rated 370 hp (276 kW). It was a solid lifter motor featuring

4104-518: A year can attest to that. And we'll attest to the fact that after 20 years, the Corvette is more than going strong. It's still the epitome of the American motoring experience." Resonators were added to the dual exhaust system on 1974 models which further helped quiet the interior. The radiator and shroud were revised for better low-speed cooling. The inside rear-view mirror width was increased from 8 inches (200 mm) to 10 inches (250 mm). For

4256-445: Is a lamp attached to the front of a vehicle to illuminate the road ahead. Headlamps are also often called headlights , but in the most precise usage, headlamp is the term for the device itself and headlight is the term for the beam of light produced and distributed by the device. Headlamp performance has steadily improved throughout the automobile age, spurred by the great disparity between daytime and nighttime traffic fatalities:

4408-607: Is a legal requirement to adjust the headlamps temporarily so that their wrong-side beam distribution does not dazzle oncoming drivers. This may be achieved by methods including adhering opaque decals or prismatic lenses to a designated part of the lens. Some projector-type headlamps can be made to produce a proper left- or right-traffic beam by shifting a lever or other movable element in or on the lamp assembly. Many tungsten (pre-halogen) European-code headlamps made in France by Cibié, Marchal, and Ducellier could be adjusted to produce either

4560-461: Is bright, and above is dark. On the side of the beam facing away from oncoming traffic (right in right-traffic countries, left in left-traffic countries), this cutoff sweeps or steps upward to direct light to road signs and pedestrians. SAE low beams may or may not have a cutoff, and if a cutoff is present, it may be of two different general types: VOL , which is conceptually similar to the ECE beam in that

4712-551: Is different from Wikidata All set index articles Chevrolet Corvette (C3)#ZR1 The most expensive Corvette C3 to sell in history was a 1969 L88 Lightweight, one of only four lightweight L88s to be produced. It was sold by Barrett-Jackson in January 2014 for $ 2,860,000 (£1,728,941). The Corvette C3 was patterned after the Mako Shark II designed by Larry Shinoda . Executed under Bill Mitchell's direction,

Chevrolet Corvette ZR-1 - Misplaced Pages Continue

4864-427: Is not believed to have ever been delivered to retail customers, but offered as a crate engine. A short model year resulted in a disproportionately low production volume of 17,316, down nearly 60%. Rare options: ZR1 special engine package (25), shoulder belts in convertibles (475), LT1 engine (1,287). Produced from August 1970, 1971 cars were virtually identical in appearance to the previous model inside and out. This

5016-452: Is the consideration of the various ways they are designed and arranged on a motor vehicle. Headlamps were round for many years because that is the native shape of a parabolic reflector . Using principles of reflection, the simple symmetric round reflective surface projects light and helps focus the beam. There was no requirement in Europe for headlamps of standardized size or shape, and lamps could be designed in any shape and size, as long as

5168-472: The Gordon-Keeble , Jensen CV8 , Triumph Vitesse , and Bentley S3 Continental used such an arrangement as well. In 1968, the newly initiated Federal Motor Vehicle Safety Standard 108 required all vehicles to have either the twin or quad round sealed beam headlamp system and prohibited any decorative or protective element in front of an operating headlamp. Glass-covered headlamps like those used on

5320-519: The Jaguar E-Type , pre-1968 VW Beetle , 1965 Chrysler and Imperial models, Porsche 356 , Citroën DS , and Ferrari Daytona were no longer permitted, and vehicles had to be equipped with uncovered headlamps for the US market. This made it difficult for vehicles with headlamp configurations designed for good aerodynamic performance to achieve it in their US-market configurations. The FMVSS 108

5472-627: The US headlamp regulations were amended to allow replaceable-bulb, nonstandard-shape, architectural headlamps with aerodynamic lenses that could for the first time be made of hard-coated polycarbonate . This allowed the first US-market car since 1939 with replaceable bulb headlamps: the 1984 Lincoln Mark VII . These composite headlamps were sometimes referred to as "Euro" headlamps since aerodynamic headlamps were common in Europe. Though conceptually similar to European headlamps with non-standardized shape and replaceable-bulb construction, these headlamps conform to

5624-579: The acetylene flame light . A number of car manufacturers offered Prest-O-Lite calcium carbide acetylene gas generator cylinder with gas feed pipes for lights as standard equipment for 1904 cars. The first electric headlamps were introduced in 1898 on the Columbia Electric Car from the Electric Vehicle Company of Hartford, Connecticut , and were optional. Two factors limited the widespread use of electric headlamps:

5776-466: The "sugar scoop" roof treatment with vertical back window from the mid-engined concept models designed by the Duntov group. It was intended from the beginning that the rear window and that portion of the roof above the seats to be removable. The "Shark" has the distinction of being introduced to the motoring public in an unorthodox—and unintended—fashion. GM had tried their best to keep the appearance of

5928-540: The 1965 model year, the Buick Riviera had concealable stacked headlamps. Various Mercedes models sold in America used this arrangement because their home-market replaceable-bulb headlamps were illegal in the US. In the late 1950s and early 1960s, some Lincoln , Buick , and Chrysler cars had the headlamps arranged diagonally with the low-beam lamps outboard and above the high-beam lamps. British cars including

6080-509: The 1966–1967 Dodge Charger . Modern headlamps are electrically operated, positioned in pairs, one or two on each side of the front of a vehicle. A headlamp system is required to produce a low and a high beam, which may be produced by multiple pairs of single-beam lamps or by a pair of dual-beam lamps, or a mix of single-beam and dual-beam lamps. High beams cast most of their light straight ahead, maximizing seeing distance but producing too much glare for safe use when other vehicles are present on

6232-501: The 1967 model's bolt-on alloys, and an operable rear hatch window. In 1969, General Motors leased three special edition Corvette Stingrays for astronauts Pete Conrad , Richard F. Gordon, Jr. , and Alan Bean of the Apollo 12 mission. All three units sported a gold and black paint scheme chosen by Bean and were leased to them for US$ 1.00 a year. For the 1969 model year the ZL1 option

Chevrolet Corvette ZR-1 - Misplaced Pages Continue

6384-400: The 1972-74 Corvette engines had ample power regardless of reduced horsepower and net ( bhp ) ratings. The L82 engine remained at 250 hp (186 kW) and the 454 cu in (7.4 L) LS4 dropped slightly to 270 hp (201 kW). Hi-Performance Cars magazine in a L48, L82, and LS4 comparison test, September 1973, said: "Our choice for the all-around best performer must go to

6536-597: The 327 cu in (5.4 L) small-block. Also available were several variants of the big-block 427 cu in (7.0 L) V8 engine , that taken together made up nearly half the cars. There was the L36, a 390 hp (291 kW) version with a Rochester 4-barrel carburetor ; The L68, a 400 hp (298 kW) motor with a Holley triple 2-barrel carb set up (3 X 2 tri-power ); The L71, generating 435 bhp (441 PS; 324 kW) at 5,800 rpm and 460 lb⋅ft (624 N⋅m) at 4,000 rpm of torque also with

6688-544: The Corvette America could be purchased on Craigslist or eBay for prices ranging from $ 145,000 to $ 275,000. Only five examples were made. The 1982 Collector Edition was the first Corvette with a hatchback rear window, foreshadowing the C4 Corvette. A special color scheme was used inside and out and Collector Edition badges were featured. The special, exclusive aluminum wheels were designed to look like

6840-542: The Corvette in 1968 was $ 4,663 (~$ 40,856 in 2023). By 1982 the base price had increased to $ 18,290 (~$ 48,871 in 2023). In 1968 there were six engines, two small-block V8s and four big-block V8s. By 1982 there was only one small block V8 engine available. In '68 there were five transmissions, including four manual choices. By '82 there was one, a four-speed automatic. Although refined, emission standards and fuel economy concerns had changed America's only sports car. C3 Corvette Photo Chronology Headlight A headlamp

6992-515: The Corvette with the last true dual exhaust systems, the last without a catalytic converter and the last use of the 454 cu in (7.4 L) big block engine. Hot Rod magazine in its March 1986 issue selected the 1973-74 Corvette LS4 454 as one of the "10 most collectable muscle cars" in the company of the 1968-70 Chevelle , 1970 'Cuda , 1970 Challenger , 1966-67 Fairlane , 1968-70 AMX , 1970 Camaro Z28 , 1968-70 GTO , 1968–69 Charger , and 1967-68 Mustang . The big-block Corvettes were

7144-590: The ECE system claim that the SAE system produces too much glare. Comparative studies have repeatedly shown that there is little or no overall safety advantage to either SAE or ECE beams; the two systems' acceptance and rejection by various countries is based primarily on which system is already in use. In North America, the design, performance, and installation of all motor vehicle lighting devices are regulated by Federal and Canada Motor Vehicle Safety Standard 108 , which incorporates SAE technical standards. Elsewhere in

7296-480: The L48 350 cu in (5.7 L) engine, standard in the other 49 states, was rated at 190 hp (142 kW). The base price increased four times during the model year raising the cost of the car by more than $ 1,200 to $ 14,345.24. In 1981, there was only one powerplant available, a 350 cu in (5.7 L) engine that, like the L48 base engine the previous year, produced the 190 hp (142 kW), but

7448-457: The L82 engine in a Corvette destined for California. Car and Driver recorded a respectable 7.7 second 0-60 mph time in a 1975 base engine-automatic, making the Corvette still one of the fastest cars available at the time. C&D said: "The Corvette feels highly competent with power-everything to help you guide the long body around..." 1976 models featured steel floor panels shielding

7600-542: The Mako II had been initiated in early 1964. Once the mid-engined format was abandoned, the Shinoda/Mitchell car was sent to Chevrolet Styling under David Holls, where Harry Haga's studio adapted it for production on the existing Stingray chassis. The resulting lower half of the car was much like the Mako II, except for the softer contours. The concept car 's name was later changed to Manta Ray. The C3 also adopted

7752-910: The Netherlands in 1976 concluded that yellow and white headlamps are equivalent as regards traffic safety, though yellow light causes less discomfort glare than white light. Researchers note that tungsten filament lamps emit only a small amount of the blue light blocked by a selective-yellow filter, so such filtration makes only a small difference in the characteristics of the light output, and suggest that headlamps using newer kinds of sources such as metal halide (HID) bulbs may, through filtration, give off less visually distracting light while still having greater light output than halogen ones. Selective yellow headlamps are no longer common, but are permitted in various countries throughout Europe as well as in non-European locales such as South Korea, Japan and New Zealand. In Iceland , yellow headlamps are allowed and

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7904-480: The P225/70R15 as standard. Wider P255/60R15 tires were available as an option and required fender trimming from the factory for clearance. The fuel tank capacity increased from 17 gal to 24 gal on all cars. To make room for the larger tank, a smaller (P195/80D15) space saver spare tire was utilized. Two special editions were offered to celebrate Corvette's 25th year. Before he retired, Bill Mitchell had suggested

8056-528: The US National Highway Traffic Safety Administration states that nearly half of all traffic-related fatalities occur in the dark, despite only 25% of traffic travelling during darkness. Other vehicles, such as trains and aircraft, are required to have headlamps. Bicycle headlamps are often used on bicycles, and are required in some jurisdictions. They can be powered by a battery or a small generator like

8208-676: The US, SAE standard headlamps are aimed without regard to headlamp mounting height. This gives vehicles with high-mounted headlamps a seeing distance advantage, at the cost of increased glare to drivers in lower vehicles. By contrast, ECE headlamp aim angle is linked to headlamp mounting height, to give all vehicles roughly equal seeing distance and all drivers roughly equal glare. Headlamps are generally required to produce white light, according to both ECE and SAE standards. ECE Regulation 48 currently requires new vehicles to be equipped with headlamps emitting white light. Different headlamp technologies produce different characteristic types of white light;

8360-478: The United States to 37,500 candela on each side of the car until 1978, when the limit was raised to 75,000. An increase in high-beam intensity to take advantage of the higher allowance could not be achieved without a move to halogen technology, and so sealed- beam headlamps with internal halogen lamps became available for use on 1979 models in the United States. As of 2010 halogen sealed beams dominate

8512-457: The United States. This headlamp format was not widely accepted in continental Europe, which found replaceable bulbs and variations in the size and shape of headlamps useful in car design. Technology moved forward in the rest of the world. In 1962 a European consortium of bulb- and headlamp-makers introduced the first halogen lamp for vehicle headlamp use, the H1 . Shortly thereafter headlamps using

8664-539: The ZR-2 package, including only 2 convertibles. Some believe the "ZR" lettering to stand for "Zora Racer", named after chief Corvette engineer Zora Duntov, but in 2008, Corvette Production Manager Harlan Charles said, "the reality is the codes are usually random and get meaning from enthusiasts." The Corvette C3 was chosen as the pace car for the 1978 Indianapolis 500 . Initially, 2500 Indy 500 replica pacers—100 for each year of production—were scheduled for sale. But it

8816-601: The ZR1 package. The LT1 could now be ordered with air conditioning, a combination not permitted the two previous years. The LS5 454 cu in (7.4 L) big block was again available and came in at 270 hp (201 kW). Noteworthy is in ’72 the LS5 was not available to California buyers. This was the beginning of a trend where Chevrolet restricted certain power train choices to California buyers due to that state's practice of applying more stringent emission (smog) standards than mandated by federal regulations. Convertibles were

8968-545: The aluminum intake manifold associated with L82 engines since 1978 was now installed in all cars, as well as an aluminum lower alternator mounting bracket replacing the cast iron piece used since 1972. For the first time, due to California emission considerations, a unique engine application was installed in cars delivered to that state and was mandatory. This motor was a 305 cu in (5.0 L) V8 engine rated at 180 hp (134 kW), fitted with new tubular 409 stainless steel exhaust manifolds that were far lighter than

9120-399: The amount of glare permitted toward other drivers on low beam (SAE permits much more glare), the minimum amount of light required to be thrown straight down the road (SAE requires more), and the specific locations within the beam at which minimum and maximum light levels are specified. ECE low beams are characterized by a distinct horizontal "cutoff" line at the top of the beam. Below the line

9272-559: The base 350 L48 engine...The L48 delivers all the acceleration you'll ever need on the road in a steady, forceful manner...in addition it runs cool, idles smoothly, and can cruise all day at 100 mph (160 km/h). The L48 took 6.8 seconds to reach 60 mph (97 km/h), the L82, 6.7 seconds and the LS4 454, 6.4 seconds. On the Bridgehampton road course and over the ride and handling course at Suffolk County Raceway,

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9424-431: The base L48 coupe was again our choice...the L82 had the same balance as the L48 but if we weren't at the right rpm through a corner, or in the wrong gear, the (L82's) lack of torque made itself felt once again...the L48 was the best balanced of the three." In conclusion, they stated: "The Corvette as a total concept has always been far more than the sum of its individual parts. The fanatical clientele that buys 30,000 of them

9576-456: The body contours to reduce wheel-thrown debris damage. New were eggcrate grills with matching front fender side vents and larger squared front directional lamps. The previously round dual exhaust outlets were made larger and rectangular in shape. Interiors were tweaked with redesigned seats and a new deluxe interior option combined wood-grain wood accents and higher-spec carpeting with leather seat surfaces. Positraction rear axle, tinted glass, and

9728-509: The bulbs. It also made aiming the headlight beams simpler and eliminated non-standard bulbs and lamps. The Tucker 48 included a defining "cyclops-eye" feature: a third center-mounted headlight connected to the car's steering mechanism. It only illuminated if the steering was moved more than ten degrees off center and the high beams were turned on. A system of four round lamps, rather than two, one high/low and one high-beam 5 + 3 ⁄ 4  in (146 mm) sealed beam on each side of

9880-406: The cabin, a large round speedometer and matching tachometer were positioned in front of the driver. Auxiliary gauges were clustered above the forward end of the console and included oil pressure , water temperature , ammeter , fuel gauge , and an analog clock. A fiber-optic system appeared on the console that monitored exterior lights and there was no glove box. The battery was relocated from

10032-490: The car's bodywork with aerodynamic glass covers, such as those on the 1961 Jaguar E-Type , and on pre-1967 VW Beetles . Headlight design in the U.S. changed very little from 1940 to 1983. In 1940, a consortium of state motor vehicle administrators standardized upon a system of two 7 in (178 mm) round sealed beam headlamps on all vehicles—the only system allowed for 17 years. This requirement eliminated problems of tarnished reflectors by sealing them together with

10184-436: The car's classic strengths including its impressive straight-line numbers, especially an L48/automatic's 7.8 second 0-60 mph time and top speed of 123 mph (198 km/h), and noted its more refined, less rattling ride. On the other hand, they continued to note its weaknesses, like a rear-end that tended to step out during sharp maneuvers and a cabin that was still cramped and uncomfortable. Road & Track took

10336-416: The car's styling. When the lamps are switched on, the covers are swung out of the way, usually downward or upward, for example on the 1992 Jaguar XJ220 . The door mechanism may be actuated by vacuum pots, as on some Ford vehicles of the late 1960s through early 1980s such as the 1967–1970 Mercury Cougar , or by an electric motor as on various Chrysler products of the middle 1960s through late 1970s such as

10488-416: The cars were ordered as such. As in previous years, a folding top came standard with roadsters and a body color or vinyl covered hardtop was optional at additional cost. Anticipating further federal safety restrictions, Chevrolet believed it would be Corvette's last soft-top model ever but the convertible returned in 1986. Due to the state's strict emissions standards, this was the last year Chevrolet installed

10640-464: The cast iron pieces they replaced, and mated to an automatic transmission, also mandatory. The carburetor and ignition timing were controlled by Chevrolet's new Computer Command Control system. The smaller displacement engine was not available in any other state. California buyers were credited $ 50 as consolation but had to pay for the California emissions certification which was $ 250. For comparison,

10792-407: The catalytic converter exhaust. These steel floor panels weighed less than the previous fiberglass floor and reduced interior noise levels. Horsepower rose to 180 hp (134 kW) for the base L48 engine; 210 hp (157 kW) for the optional L82. To further reduce cabin noise levels, cowl induction was dropped in favor of the air cleaner ducted over the radiator, picking up outside air from

10944-435: The conventional two-filament type, and the intermediate beam combined low beam on the driver's side with high beam on the passenger's side, so as to maximise the view of the roadside while minimizing glare toward oncoming traffic. The last vehicles with a foot-operated dimmer switch were the 1991 Ford F-Series and E-Series [Econoline] vans. Fog lamps were new for 1938 Cadillacs, and their 1952 "Autronic Eye" system automated

11096-447: The correct traffic-handedness. North American vehicle owners sometimes privately import and install Japanese-market (JDM) headlamps on their car in the mistaken belief that the beam performance will be better, when in fact such misapplication is quite hazardous and illegal. Vehicle headlamps have been found unable to illuminate an assured clear distance ahead at speeds above 60 km/h (40 mph). It may be unsafe and, in

11248-552: The criticism of the previous year's steering wheel with an all new three-spoke leather-wrapped unit, which was well received. Chevrolet featured this new wheel prominently on the front of their new Corvette sales brochure. The new wheel came on all cars fitted with the optional tilt-telescopic steering column which was ordered on all but a few thousand Corvettes. Corvette's refinement as a touring sports car continued as both power steering and power brakes became standard and new options included body-colored sport mirrors, cruise control, and

11400-459: The cutoff is located at the top of the left side of the beam and aimed slightly below horizontal, or VOR , which has the cutoff at the top of the right side of the beam and aimed at the horizon. Proponents of each headlamp system decry the other as inadequate and unsafe: US proponents of the SAE system claim that the ECE low beam cutoff gives short seeing distances and inadequate illumination for overhead road signs, while international proponents of

11552-408: The debut of the "Cross-Fire Injection" fuel delivery system. This TBI (Throttle Body Fuel Injection) was not the type of fuel injection installed previously in some C1 and C2 Corvettes. It utilized two throttle bodies combined with Chevrolet's computer control system. The engine produced 200 hp (149 kW) and was mated to a new four-speed automatic transmission with torque converters bypass in

11704-403: The dome. The new seven-inch wide steel wheels had F70x15 nylon bias-ply tires standard with either white or red stripe tires optional. Rare options were: L88 engine (80), J56 heavy-duty brakes (81), UA6 alarm system (388), L89 aluminum heads (624). In 1969, small block engine displacement increased from 327 cu in (5.4 L) to 350 cu in (5.7 L), though output remained

11856-464: The engine area to one of three compartments behind the seats to improve weight distribution. New options included a rear window defroster, anti-theft alarm system, bright metal wheel covers, and an AM-FM Stereo radio. All cars ordered with a radio, like the C2 cars, continued to be fitted with chrome-plated ignition shielding covering the distributor to reduce interference. The chassis was carried over from

12008-407: The engine paint color was changed from Chevy orange to Corporate blue. The “Stingray” script, seen on front fenders since 1969 disappeared, but new cross-flags emblems began appearing on fenders before the model year ended. Windshield posts were now painted black for a “thin pillar” look and this was the final year of the "sugar scoop" tunneled roof-line and vertical back window. A Corvette milestone

12160-526: The engine revealed closer to 460 hp (343 kW) gross and net rating of only 376 hp (280 kW). According to Motor Trend in a late 1968 road test, the Corvette ZL1 was the fastest production car ever produced (up to that time). For decades, automotive experts believed only two were built (yellow and white coupes), however Car and Driver in December 1969, revealed a third red ZL1. It

12312-418: The existing 7-inch round format, or a system of four 165 by 100 mm (6.5 by 3.9 in) units, two high/low and two high-beam. corresponding to the existing 5 + 3 ⁄ 4  in (146 mm) round format. The rectangular headlamp design became so prevalent in U.S.-made cars that only a few models continued using round headlamps by 1979. In 1983, granting a 1981 petition from Ford Motor Company,

12464-499: The finger plate would actuate the door, eliminating the separate release button. Backup lights were integrated into the inboard taillights , headlight washers were added, and front grilles were made all black. Side-mounted exhausts and front fender vent trim were options for this year only. On the inside, revised door panels provided additional shoulder room in the C3's tighter cabin and headrests became standard. Steering wheel diameter

12616-469: The first time, lap and shoulder seat belts were integrated, but only in coupes. The FE7 Gymkhana "off-road" suspension included stiffer springs and a stiffer front stabilizer bar with no ordering restrictions. The new $ 7 FE7 suspension option was included with the Z07 package — The $ 400 package (also included H.D. power brakes) was available for L82 and LS4 cars with M21 transmission. 1974 was the end of an era for

12768-539: The frame with two Omark-bolts-(special steel fasteners which absorbed energy when a forming die, pushed back by the bumper, was forced down their length), and an injection-molded polyurethane bumper cover. The urethane nose was chosen over Chevy's other alternative, a more protruding version of the previous metal bumper. The new urethane bumper assembly added thirty-five pounds to the front end. Two 350 cu in (5.7 L) small block engines were available. The base L48 engine produced 190 hp (142 kW). The L82

12920-654: The front turn signals , or by special daytime running lamps. Functionally dedicated daytime running lamps not involving the headlamps are required on all new cars first sold in the European Union since February 2011. In addition to the EU and Canada, countries requiring DRL include Albania, Argentina, Bosnia and Herzegovina, Czech republic, Colombia (no more from Aug/2011), Iceland, Israel, Macedonia, Norway, Moldova, Russia, Serbia, and Uruguay. There are two different beam pattern and headlamp construction standards in use in

13072-476: The front fenders, which were smooth until the lights were cranked out—each with its own small dash-mounted crank—by the operator. They aided aerodynamics when the headlamps were not in use and were among the Cord's signature design features. Later hidden headlamps require one or more vacuum-operated servos and reservoirs, with associated plumbing and linkage, or electric motors , geartrains and linkages to raise

13224-418: The front of the car, thus reducing wind turbulence at the base of the windshield. The hood was carried over, with its cowl vent grille and induction system opening becoming non-functional. The optional cast aluminum wheels were finally made available, which reduced the unsprung weight of the car by 32 pounds. Nearly 15% of the cars were ordered with the new wheels at a cost of $ 299. A standard steel rim spare

13376-493: The full Gymkhana suspension. An auxiliary electric engine cooling fan was first installed, but only on L82 equipped cars with air conditioning. Rocker panels and rear window trim were painted black. Output for all engines increased due to new "open flow" mufflers. The dual-snorkel air intake introduced on L82 cars the previous year was now fitted to all cars and the base engine now generated 195 hp (145 kW). The optional L82 engine increased to 225 hp (168 kW). This

13528-488: The gas pedal. But, to us at least, the small block engine contributes to a fine sense of balance in the Corvette that is rare in any GT car, so rare that it would be a shame to exchange it for a few lb.-ft. of torque.” The 454 cu in (7.4 L) LS-4 big-block V8 engine was introduced in 1973 to replace the LS-5. It delivered 275 hp (205 kW) and 15% of the cars were ordered so equipped. “454” emblems adorned

13680-453: The glass roof panels. The new lightweight “high back” seats were made standard equipment. The new seats had better side bolster, provided easier access to the rear storage area, and the seat pair resulted in a weight reduction of about 24 pounds. The bolt-on front and rear spoilers were offered as an option and nearly 7,000 cars were ordered so equipped. Functionally, the spoilers decreased drag by about 15% and increased fuel economy by about

13832-477: The headlamp design, construction, and performance specifications of US Federal Motor Vehicle Safety Standard 108 rather than the internationalized European safety standards used outside North America. Nevertheless, this change to US regulations made it possible for headlamp styling in the US market to move closer to that in Europe. Hidden headlamps were introduced in 1936, on the Cord 810/812 . They were mounted in

13984-457: The high performance LT1, now listed at 330 hp (246 kW). The LS5 454 cu in (7.4 L) motor was carried over and produced 365 hp (272 kW). Offered in ‘71 only was the LS6 454 cu in (7.4 L) big-block featuring aluminum heads and delivering 425 hp (317 kW), highest of the 1970-72 MYs, and could be ordered with an automatic transmission. The ZR1 option

14136-454: The hood of big-block equipped Corvettes. All models featured a new cowl induction domed hood, which pulled air in through a rear hood intake into the engine compartment under full throttle, increasing power (but didn't show up in the horsepower ratings). 0-60 mph times were reduced by a second while keeping the engine compartment cooler. The new tire size was GR70-15 with white stripes or raised white letters optional. An aluminum wheel option

14288-513: The hood to the front fenders on cars ordered with the optional high performance engine. This was the finale for the L82 Corvette emblem, now producing 230 hp (172 kW) but it could not be mated to a 4-speed, as the manual gearbox was offered only with the L48 engine option. The speedometer in all cars read to a maximum of 85 mph (137 km/h), mandated by a new and controversial federal law. Air conditioning became standard, as did

14440-577: The interior, continued on 1977 through 1979 models, limited to non-tilt wheel cars only. GM's "Freedom" battery, a new sealed and maintenance-free unit, was now installed in all cars. The rear window defroster option was changed from the forced-air type of previous years to the new "Electro-Clear" defogger, an in-glass heated element type. Even without a convertible model, the Corvette still set new sales records. Car and Driver recorded 6.8 second 0-60 mph times in both L48 and L82 4-speed equipped 1976 Corvettes. The magazine ordered an L48 4-speed for

14592-561: The lamps met the engineering and performance requirements contained in the applicable European safety standards . Rectangular headlamps were first used in 1960, developed by Hella for the German Ford Taunus P3 and by Cibié for the Citroën Ami 6 . They were prohibited in the United States where round lamps were required until 1975. Another early headlamp styling concept involved conventional round lamps faired into

14744-574: The lamps to an exact position to assure correct aiming despite ice, snow, and age. Some hidden headlamp designs, such as those on the Saab Sonett III, used a lever-operated mechanical linkage to raise the headlamps into position. During the 1960s and 1970s, many notable sports cars used this feature such as the Chevrolet Corvette (C3) , Ferrari Berlinetta Boxer and Lamborghini Countach as they allowed low bonnet lines but raised

14896-412: The last C3 available with a manual transmission, so equipped, had a published 0-60 mph in 8.1 seconds. This model year was the first Corvette to use a fiberglass rear leaf spring , now a Corvette trademark. The spring saved thirty-six pounds, but was limited to base suspensions with automatic transmission. When equipped with Delco's brand new optional ETR (Electronically Tuned Receiver) radio with

15048-453: The lights to the required height, but since 2004 no modern volume-produced car models use hidden headlamps because they present difficulties in complying with pedestrian-protection provisions added to international auto safety regulations regarding protuberances on car bodies to minimize injury to pedestrians struck by cars. Some hidden headlamps themselves do not move, but rather are covered when not in use by panels designed to blend in with

15200-497: The low beams in their conventional outboard location, and the high beams vertically stacked at the centerline of the car, but no such designs reached volume production. An example arrangement includes the stacking of two headlamps on each side, with low beams above high beams. The Nash Ambassador used this arrangement in the 1957 model year. Pontiac used this design starting in the 1963 model year; American Motors , Ford , Cadillac , and Chrysler followed two years later. Also in

15352-418: The metric system as speedometers now displayed small subfaces indicating kilometers-per-hour. 75's featured revised inner bumper systems with molded front and rear simulated bumper guards. The urethane rear bumper, now in its second year, reappeared as a one-piece seamless unit. This was the final year for Astro Ventilation. Power bottomed out this year — the base engine produced only 165 hp (123 kW) and

15504-424: The modern vehicle electrical system. The Guide Lamp Company introduced "dipping" (low-beam) headlamps in 1915, but the 1917 Cadillac system allowed the light to be dipped using a lever inside the car rather than requiring the driver to stop and get out. The 1924 Bilux bulb was the first modern unit, having the light for both low (dipped) and high (main) beams of a headlamp emitting from a single bulb. A similar design

15656-401: The new light source were introduced in Europe. These were effectively prohibited in the US, where standard-size sealed beam headlamps were mandatory and intensity regulations were low. US lawmakers faced pressure to act, due both to lighting effectiveness and to vehicle aerodynamics/fuel savings. High-beam peak intensity, capped at 140,000 candela per side of the car in Europe, was limited in

15808-536: The only muscle cars produced after 1970 worthy of the list. The 1975 model was advertised as "a more efficient Corvette," as service intervals were extended and electronic ignition and the federally mandated catalytic converter were introduced with "unleaded fuel only" warnings on the fuel gauge and filler door. Dual exhaust pipes were routed to a single converter, then split again leading to dual mufflers and tailpipes. Starting this year, tachometers were electronically driven. The Corvette began to be influenced by

15960-443: The only remaining optional motor, the L82, dropped an astonishing 45 hp (34 kW), managing to deliver 205 hp (153 kW). With no larger engine available, L82 hood emblems began to appear on cars so equipped. Unchanged was the standard rear axle ratio for the base engine, which remained at 3.08 with automatic and 3.36 with manual transmission. This was the last convertible for the 1968-82 third-generation and only 12% of

16112-486: The optional bolt-on wheels of the 1967 model. The Collector Edition had a "0" in the sixth digit of the VIN rather than the "8" found on standard Corvettes. This was the first Corvette to sell for more than $ 20,000, with a base price of $ 22,537.59. The Collector Edition had unlimited availability and 6,759 were produced out of a 1982 total production of 25,407. The C3 fourteen-year run shows an extreme contrast. The list price for

16264-551: The previous SAE gross standard), and was largely responsible for the much lower engine output figures such as the 200 hp (149 kW) rating on the standard 350 cu in (5.7 L) motor. This was the final year for the LT1 engine, rated at 255 hp (190 kW), and the ZR1 racing package built around it. Although the M22 HD 4-speed was no longer a Regular Production Option , it continued to be fitted to cars outfitted with

16416-454: The previous year were seven available rear axle ratios ranging from 2.73 to 4.56. Standard ratio remained 3.08 with automatic and 3.36 with manual transmission. The optional Positraction rear axle, mandated on many engine/gearbox combinations, was installed on more than 95% of the cars. "Stingray" script nameplates appeared on front fenders, now one word, in contrast to the “Sting Ray” name used previously. Exterior door handles were redesigned so

16568-430: The production versions impressed us as coming closer to being real touring cars than we might ever have thought. There's a lot more sincere ring now to our stock answer to the question, Why a Corvette?" 1977 saw the steering column repositioned 2 inches (51 mm) closer to the dashboard to allow a more "arms out" position for the driver. The custom interior with leather seat trim was now standard, with cloth and leather

16720-459: The quarter mile in 14.36 seconds at 101.69 mph and remarked, “There is Corvette and there is Porsche. One is the best engineering effort of America, the other of Germany. The difference in machines is not as great as the disparity in price.” A special ZR1 package added racing suspension, brakes, stabilizer bars, and other high performance components to LT1 cars. Big-block selection was down to one engine but displacement increased. The LS5

16872-408: The road, as the glare they produce will dazzle other drivers. International ECE Regulations permit higher-intensity high-beam headlamps than are allowed under North American regulations . Most low-beam headlamps are specifically designed for use on only one side of the road . Headlamps for use in left-traffic countries have low-beam headlamps that "dip to the left"; the light is distributed with

17024-495: The road. Because there is no special control of upward light, high beams also cause backdazzle from fog , rain and snow due to the retroreflection of the water droplets . Low beams have stricter control of upward light, and direct most of their light downward and either rightward (in right-traffic countries) or leftward (in left-traffic countries), to provide forward visibility without excessive glare or backdazzle. Low beam (dipped beam, passing beam, meeting beam) headlamps provide

17176-522: The same. All other engines and transmission choices remained unchanged from the previous year, though the L30 base engine was now the ZQ3 and the L79 motor was redesignated the L46. All cars featured 8-inch-wide (200 mm) steel wheels (increased from 7 inches). Tire size remained the same, although this was the first year for optional white lettered tires and the last for red striped tires. Carried over from

17328-456: The sealed-beam market, which has declined steeply since replaceable- bulb headlamps were permitted in 1983. High-intensity discharge (HID) systems appeared in the early 1990s, first in the BMW 7 Series . 1996's Lincoln Mark VIII was an early American effort at HIDs, and was the only car with DC HIDs. Beyond the engineering, performance, and regulatory-compliance aspects of headlamps, there

17480-498: The second generation models, retaining the fully independent suspension (with minor revisions) and the four-wheel disc brake system. The engine line-up and horsepower ratings were also carried over from the previous year as were the 3 and 4-speed manual transmissions . The new optional Turbo Hydramatic 3-speed automatic transmission ( RPO M40) replaced the two-speed Powerglide . The L30, a 327 cu in (5.4 L) small-block V8 engine rated at 300 hp (224 kW) and

17632-475: The selection of high and low beams. Directional lighting, using a switch and electromagnetically shifted reflector to illuminate the curbside only, was introduced in the rare, one-year-only 1935 Tatra . Steering-linked lighting was featured on the 1947 Tucker Torpedo's center-mounted headlight and was later popularized by the Citroën DS . This made it possible to turn the light in the direction of travel when

17784-587: The short life of filaments in the harsh automotive environment, and the difficulty of producing dynamos small enough, yet powerful enough to produce sufficient current. Peerless made electric headlamps standard in 1908. A Birmingham, England firm called Pockley Automobile Electric Lighting Syndicate marketed the world's first electric car-lights as a complete set in 1908, which consisted of headlamps, sidelamps, and tail lights that were powered by an eight-volt battery. In 1912 Cadillac integrated their vehicle's Delco electrical ignition and lighting system, forming

17936-694: The steering wheel turned. The standardized 7-inch (178 mm) round sealed-beam headlamp, one per side, was required for all vehicles sold in the United States from 1940, virtually freezing usable lighting technology in place until the 1970s for Americans. In 1957 the law changed to allow smaller 5.75-inch (146 mm) round sealed beams, two per side of the vehicle, and in 1974 rectangular sealed beams were permitted as well. Britain, Australia, and some other Commonwealth countries, as well as Japan and Sweden , also made extensive use of 7-inch sealed beams, though they were not mandated as they were in

18088-414: The styling. We wouldn’t just change it for the sake of change. But when we made the rear bumper stronger, we made Corvette’s rear styling look different. And, we think better...” A 1974 Stingray equipped with the L48 195 hp (145 kW) small-block was capable of 0-60 mph in 6.8 seconds; comparable to the 6.5 second time of the 1968 small-block rated at 300 hp (224 kW); proof

18240-483: The tilt-telescopic steering column, power windows, exterior sport mirrors, and the convenience group. New was an optional roof panel carrier that would mount to the rear fastback deck. Many weight-saving components were introduced including thinner body panels and an aluminum Dana 44 IRS (Independent Rear Suspension) differential and crossmember. The new lighter unit replaced the arguably stronger cast iron GM 10 bolt IRS differential. In line with further weight savings,

18392-562: The top three gears. Compared to the previous Turbo-Hydramatic 3-speed, the new 700-R4 transmission had a lower first and second gear for improved low-end acceleration, and a fourth gear overdrive that would reduce engine RPM by 30 percent at highway cruising speeds, resulting in better fuel economy. On the downside, the new transmission was not considered a strong unit and proved problematic. The final model C3 Corvette's published performance numbers were 0-60 mph in 7.9 seconds-the quarter-mile in 16.1 at 85 mph (137 km/h). This

18544-415: The upcoming car a secret, but the release of Mattel 's die-cast Hot Wheels line several weeks before the C3's unveiling had a certain version of particular interest to Corvette fans: the "Custom Corvette", a GM-authorized model of the 1968 Corvette. For 1968, both the Corvette body and interior were completely redesigned. As before, the car was available in either coupe or convertible models, but coupe

18696-441: The usable luggage space behind the seats while improving rearward visibility in the bargain. A shade was installed that could be pulled forward to cover the rear compartment to protect cargo and carpet against the sun. The tachometer and speedometer were redesigned to match the new “aircraft styled” center console and gauge cluster first seen the previous year. Redesigned interior door panels were also new as well as an actual glove box

18848-403: The vacuum actuated pop-up windshield wiper door, as well as the removable rear window common to all 1968-72 coupes. The key activated anti-theft alarm system became standard. The increasingly popular choice of an automatic transmission was installed in most Corvettes for the first time, with nearly 54 percent so equipped. This year SAE net measurement for horsepower was now utilized (away from

19000-552: The vehicle, was introduced on some 1957 Cadillac, Chrysler, DeSoto, and Nash models in states that permitted the new system. Separate low and high beam lamps eliminated the need for compromise in lens design and filament positioning required in a single unit. Other cars followed suit when all states permitted the new lamps by the time the 1958 models were brought to market. The four-lamp system permitted more design flexibility and improved low and high beam performance. Auto stylists such as Virgil Exner carried out design studies with

19152-510: The white specification is quite large and permits a wide range of apparent colour from warm white (with a brown-orange-amber-yellow cast) to cold white (with a blue-violet cast). Previous ECE regulations also permitted selective yellow light. A research experiment done in the UK in 1968 using tungsten (non-halogen) lamps found that visual acuity is about 3% better with selective yellow headlamps than with white ones of equal intensity. Research done in

19304-565: The world, ECE internationalized regulations are in force either by reference or by incorporation in individual countries' vehicular codes. US laws required sealed beam headlamps on all vehicles between 1940 and 1983, and other countries such as Japan, United Kingdom, and Australia also made extensive use of sealed beams. In most other countries, and in the US since 1984, replaceable-bulb headlamps predominate. Headlamps must be kept in proper aim. Regulations for aim vary from country to country and from beam specification to beam specification. In

19456-470: The world: The ECE standard, which is allowed or required in virtually all industrialized countries except the United States, and the SAE standard that is mandatory only in the US. Japan formerly had bespoke lighting regulations similar to the US standards, but for the left side of the road. However, Japan now adheres to the ECE standard. The differences between the SAE and ECE headlamp standards are primarily in

19608-523: Was a $ 1,747.00 (1 year only) option originally planned for 1970, but officially released in 1971. It included the special equipment in the ZR1 package, but for the 454 LS-6 engine. Per GM policy, 1971 Corvette engines were detuned to run on low-lead fuel, except for the LS-6 V8, which was rated at 425 bhp (317 kW) on premium fuel. 188 cars in the 1971 model included the LS-6 engine, with only 12 with

19760-471: Was a 454 cu in (7.4 L; 7,439.7 cc) motor generating 390 hp (291 kW) SAE gross and accounted for a quarter of the cars. The LS7, which was equipped with a single 800 CFM Holley carburetor and advertised at 460 hp (466 PS; 343 kW) at 5600 rpm SAE gross and 490 lb⋅ft (664 N⋅m) at 3600 rpm of torque , was planned and appeared in Chevrolet literature but

19912-526: Was added in front of the passenger seat, replacing the map pockets of previous years. Available options now included power door locks, a power antenna, dual rear speakers and a CB radio. The optional convenience group, introduced the previous year, now included intermittent (delay) wipers, floor mats, and the passenger side vanity mirror was an upgraded illuminated unit. The base L48 engine generated 185 hp (138 kW); Those destined for California or high altitude areas produced 175 hp (130 kW). Gone

20064-408: Was also the year for the first Off Road Suspension RPO Z07 produced and today it is considered a very rare production Corvette as only 45 were produced. For 1974, a new rear bumper system replaced the squared tail and chrome rear bumper blades introduced in 1967 with a trim, tapering urethane cover carrying an integral license plate holder and recesses for the trademark round taillights. Underneath sat

20216-416: Was amended in 1974 to permit rectangular sealed-beam headlamps. This allowed manufacturers flexibility to lower the hoods on new cars. These could be placed in horizontal arrays or in vertically stacked pairs. As previously with round lamps, the US permitted only two standardized sizes of rectangular sealed-beam lamp: A system of two 200 by 142 mm (7.9 by 5.6 in) high/low beam units corresponding to

20368-482: Was carried over for LT1 equipped cars and the ZR2 option, offered this year only, provided a similar performance equipment package for LS6 cars, and restricted transmission to a 4-speed manual. Rare options: ZR1 special engine package (8), ZR2 special engine package (12), LS6 425 hp engine (188), shoulder belts in convertibles (677). 1972 (Aug. 1971 prod) was the last model year for chrome bumpers at both front and rear,

20520-1167: Was decided that each of Chevrolet's 6502 dealers should have one for showroom display. Thus what was called the Limited Edition Indy Pace Car Replica Corvette made up some 15 percent of total production. Like the Silver Anniversary model, the Pace Car Replica was actually an option package-RPO Z78. Its main distinction was black over silver metallic with a bright red pinstripe in between with a spoiler added to each end to alter appearance more dramatically. Pace car interiors reflected Bill Mitchell's influence, with full silver leather or silver leather/gray cloth upholstery and gray carpeting. All replicas were equipped with new thin-shell design-lumbar support seats, new glass t-tops, alloy wheels, power windows, air conditioning, tilt/telescope steering wheel, power locks, rear defogger, sport mirrors, heavy-duty battery, and AM/FM stereo with either eight-track tape player or CB radio. The final touch

20672-403: Was designed to come on strong at higher RPM and ordered with nearly 20% of the cars at a cost of $ 299. Car and Driver on the L82 in December 1972, “…when it comes to making a choice, the L82 is the engine we prefer. Duntov and the other Corvette engineers gravitate toward the big blocks because they like the torque. And granted, the 454s will squirt through traffic with just a feather touch on

20824-473: Was introduced as the optional high performance small-block engine (replacing the LT1 engine) and delivered 250 hp (186 kW). The new hydraulic lifter motor featured a forged steel crankshaft , running in a four-bolt main block , with special rods , impact extruded pistons, a higher lift camshaft , mated to special heads with larger valves running at a higher 9:1 compression , and included finned aluminum valve covers to help dissipate heat. The L82

20976-436: Was introduced in 1925 by Guide Lamp called the "Duplo". In 1927 the foot-operated dimmer switch or dip switch was introduced and became standard for much of the century. 1933–1934 Packards featured tri-beam headlamps, the bulbs having three filaments. From highest to lowest, the beams were called "country passing", "country driving" and "city driving". The 1934 Nash also used a three-beam system, although in this case with bulbs of

21128-472: Was now a notchback fitted with a near-vertical removable rear window and removable roof panels ( T-tops ). A soft folding top was included with convertibles, while an auxiliary hardtop with a glass rear window was offered at additional cost. Included with coupes were hold down straps and a pair of vinyl bags to store the roof panels, and above the luggage area was a rear window stowage tray. The enduring new body's concealed headlights moved into position via

21280-498: Was now designated the L81. The motor was certified in all states and available with manual or automatic transmissions. Chrome air cleaner lids and cast magnesium valve covers dressed up all engines. The light weight 4 into 1 stainless steel exhaust manifolds and computer control system introduced on the 305 cu in (5.0 L) California engines the previous year were now standard, as was an auxiliary electric engine cooling fan. This,

21432-561: Was offered featuring an all-aluminum 427 cu in (7.0 L) big-block engine listed at 430 hp (321 kW) gross , but reported to produce 560 hp (418 kW), that propelled the car through the 1 ⁄ 4 mile (0.40 km) in 10.89 seconds. The option cost $ 4,700 (the ZL1 was a $ 3,010 option that consisted of aluminum cylinder block and heads on top of the $ 1,032.15 L88 option). Though generally believed to deliver at least 100 hp (75 kW) more, proper testing of

21584-426: Was purchased by a Gulf Oil engineer who still owns and occasionally races it. In 2023, one of two factory-produced 1969 Corvette ZL-1s was auctioned off by RM Sotheby's Arizona for $ 3,140,000. The ZR1 special engine package was a $ 1,221.00 option available exclusively with the LT1 engine option. It included the solid-lifter small-block engine, heavy-duty four-speed transmission, power brakes, aluminum radiator, and

21736-436: Was reached during 1977 as Chevrolet had built a half million Corvettes since production began in 1953. 1978 was the Corvette's 25th anniversary, and all 78s featured silver anniversary nose and fuel door emblems. A new fastback rear window was the most dramatic and noticeable styling change, giving the ten-year-old C3 Corvette body style a fresh lease on life. The fixed-glass fastback benefited both aerodynamics and increased

21888-407: Was reduced from 16 to 15 inches to permit easier entry and exit, the ignition switch was moved from the dash to the steering column, and map pockets were added to the dash area in front of the passenger seat. Accounting for 57% of the cars, coupes with their removable roof panels, began a trend of outselling roadsters . An extended production cycle due to a labor dispute increased '69 volume. This

22040-412: Was seen on 1973 and 1974 pilot cars, and a few 1973s were so equipped, but withheld for quality issues, and wouldn't be available until 1976. Road & Track magazine stated in a 1973 road test: "For all its age, size and compromises, if the Corvette is equipped with the right options it is a pleasant and rewarding car to drive and this 1973 example was one of the best Corvettes we've ever driven." It

22192-480: Was the Indy 500 decal set included uninstalled with each limited-edition car. The Corvette America was a rare version of the C3 distinguished by its four doors. Various sources stated that either General Motors built it or that it was custom built by California Coach Motors. The wheelbase was lengthened by approximately 30 in (760 mm) to accommodate the rear doors and seats. Automotive forums have reported that

22344-460: Was the chrome-plated ignition shielding over the distributor, replaced with a metal-lined black plastic unit. The single-snorkel air intake used since 1976 was changed to a dual-snorkel set-up on L82 equipped cars helping to boost that output to 220 hp (164 kW). L82 engines were also now fitted with an aluminum intake manifold which saved 24 pounds compared to the cast iron unit of previous years. The Corvette converted to metric tires with

22496-569: Was the final year a manual gearbox could be ordered with the L82 engine. This was also the last year for the M21 close-ratio 4-speed, a gearbox that, as in previous years, required the optional L82 engine. A wide-ratio 4-speed was available for all cars. Noteworthy is that about 82% of the cars were ordered with manual transmissions in 1968. In '79, less than 20% of the cars were delivered with manual gearboxes. This year reached an all-time high in Corvette popularity. Production hit its peak in 1979 at 53,807,

22648-513: Was the final year for the fiber optics light monitoring system, the headlight washer system, and the M22 heavy duty 4-speed manual gearbox. For the first time, air conditioning was installed on most of the cars, with nearly 53 percent so ordered. Engines were detuned with reduced compression ratios to tolerate lower octane fuel. The small blocks available were the 350 cu in (5.7 L) base engine, which dropped to 270 hp (201 kW), and

22800-434: Was the last year for 8-track tape availability and new "cross-fire injection" emblems appeared on front fenders. Nose and fuel door crossed-flags emblems changed to a more squared design. In 1982, Chevrolet knew this would be the last year of an entire generation of Corvettes and so commemorated the occasion by offering a Collector Edition with separate serial number sequencing, silver-beige paint, unique wheels patterned after

22952-635: Was the last year for the L88 engine and the only year for the ZL1 option, which offered an all-aluminum 427 cu in (7.0 L) big-block engine listed at 430 hp (321 kW). Rare options: ZL1 aluminum block (2), J56 heavy-duty brakes (115), L88 engine (116), L89 aluminum heads (390). Car and Driver magazine wrote in October 1968, “The small-engine Corvettes are marginally faster and extraordinarily civilized. The large-engine Corvettes are extraordinarily fast and marginally civilized.” With January 1970 production, fender flares were designed into

23104-447: Was used. This was the last year for optional white striped tires, as 86% of the cars were being delivered with the optional white lettered tires. A new rear nameplate for the rear bumper cover was introduced, eliminating the individual "Corvette" letters used since 1968. An unwelcome change was the " Vega GT " 4-spoke steering wheel, although its smaller diameter did provide extra room and eased entry/exit. The steering wheel, color-keyed to

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