Chevrolet Corvette C2
Encyclopedia
The Chevrolet Corvette (C2 for Second Generation), also known as the Corvette Sting Ray, is a sports car
Sports car
A sports car is a small, usually two seat, two door automobile designed for high speed driving and maneuverability....

 produced by the Chevrolet
Chevrolet
Chevrolet , also known as Chevy , is a brand of vehicle produced by General Motors Company . Founded by Louis Chevrolet and ousted GM founder William C. Durant on November 3, 1911, General Motors acquired Chevrolet in 1918...

 division of General Motors
General Motors
General Motors Company , commonly known as GM, formerly incorporated as General Motors Corporation, is an American multinational automotive corporation headquartered in Detroit, Michigan and the world's second-largest automaker in 2010...

 for the 1963 through 1967 model year
Model year
The model year of a product is a number used worldwide, but with a high level of prominence in North America, to describe approximately when a product was produced, and indicates the coinciding base specification of that product....

s.

Origin and development

The 1963 Sting Ray production car's lineage can be traced to two separate GM projects: the Q-Corvette, ­and perhaps more directly, Mitchell's racing Stingray
Corvette Stingray (Concept car)
The Corvette Stingray was a privately funded concept car that formed a basis for the second generation Corvette Sting Ray. The Stingray racer-concept car was designed by Pete Brock the youngest designer to work at GM at that time, Bill Mitchell, GM Vice President of styling, and Larry Shinoda in...

. The Q-Corvette, initiated in 1957, envisioned a smaller, more advanced Corvette as a coupe-only model, boasting a rear transaxle
Transaxle
In the automotive field, a transaxle is a major mechanical component that combines the functionality of the transmission, the differential, and associated components of the driven axle into one integrated assembly....

, independent rear suspension, and four-wheel disc brakes, with the rear brakes mounted inboard. Exterior styling was purposeful, with peaked fenders, a long nose, and a short, bobbed tail.

Meanwhile, Zora Arkus-Duntov
Zora Arkus-Duntov
Zora Arkus-Duntov was a Belgian-born American engineer. His work on the Chevrolet Corvette earned him the nickname "Father of the Corvette."- Early life :Zora was born Zachary Arkus in Belgium on Christmas Day, 1909...

 and other GM engineers had become fascinated with mid and rear-engine designs. It was during the Corvair's
Chevrolet Corvair
-First generation :The 1960 Corvair 500 and 700 series four-door sedans were conceived as economy cars offering few amenities in order to keep the price competitive, with the 500 selling for under $2,000...

 development that Duntov took the mid/rear-engine layout to its limits in the CERV I concept. The Chevrolet Experimental Research Vehicle was a lightweight, open-wheel single-seat racer. A rear-engined Corvette was briefly considered during 1958-60, progressing as far as a full-scale mock-up designed around the Corvair's entire rear-mounted power package, including its complicated air-cooled flat-six as an alternative to the Corvette's usual water-cooled V-8. By the fall of 1959, elements of the Q-Corvette and the Stingray Special racer would be incorporated into experimental project XP-720, which was the design program that led directly to the production 1963 Corvette Sting Ray. The XP-720 sought to deliver improved passenger accommodation, more luggage space, and superior ride and handling over previous Corvettes.

While Duntov was developing an innovative new chassis for the 1963 Corvette, designers were adapting and refining the basic look of the racing Stingray for the production model. A fully functional space buck (a wooden mock-up created to work out interior dimensions) was completed by early 1960, production coupe styling was locked up for the most part by April, and the interior, instrument panel included was in place by November. Only in the fall of 1960 did the designers turn their creative attention to a new version of the traditional Corvette convertible
Convertible
A convertible is a type of automobile in which the roof can retract and fold away having windows which wind-down inside the doors, converting it from an enclosed to an open-air vehicle...

 and, still later, its detachable hardtop. For the first time in the Corvette's history, wind tunnel
Wind tunnel
A wind tunnel is a research tool used in aerodynamic research to study the effects of air moving past solid objects.-Theory of operation:Wind tunnels were first proposed as a means of studying vehicles in free flight...

 testing helped refine the final shape, as did practical matters like interior space, windshield curvatures, and tooling limitations. Both body styles were extensively evaluated as production-ready 3/8-scale models at the Cal Tech wind tunnel.

The vehicle's inner structure received as much attention as the aerodynamics
Aerodynamics
Aerodynamics is a branch of dynamics concerned with studying the motion of air, particularly when it interacts with a moving object. Aerodynamics is a subfield of fluid dynamics and gas dynamics, with much theory shared between them. Aerodynamics is often used synonymously with gas dynamics, with...

 of its exterior . Fiberglass
Fiberglass
Glass fiber is a material consisting of numerous extremely fine fibers of glass.Glassmakers throughout history have experimented with glass fibers, but mass manufacture of glass fiber was only made possible with the invention of finer machine tooling...

 outer panels were retained, but the Sting Ray emerged with nearly twice as much steel
Steel
Steel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron, but various other alloying elements are used, such as manganese, chromium, vanadium, and tungsten...

 support in its central structure as the 1958-62 Corvette. The resulting extra weight was balanced by a reduction in fiberglass thickness, so the finished product actually weighed a bit less than the old roadster. Passenger room was as good as before despite the tighter wheelbase
Wheelbase
In both road and rail vehicles, the wheelbase is the distance between the centers of the front and rear wheels.- Road :In automobiles, the wheelbase is the horizontal distance between the center of the front wheel and the center of the rear wheel...

, and the reinforcing steel girder made the cockpit both stronger and safer.

Design and engineering

The first-ever production Corvette coupe, a futuristic fastback
Fastback
A fastback is a car body style whose roofline slopes continuously down at the back. The word can also designate the car itself. The style is seen on two-door coupés as well as four-door sedans.-History:...

, sported one of the most unique styling elements in automotive history - a divided rear window. The rear window's basic shape had been originally conceived by Bob McLean for the Q-model. The rest of the Sting Ray design was equally stunning. Quad headlamps were retained but newly hidden - the first American car so equipped since the 1942 DeSoto. The lamps were mounted in rotating sections that matched the pointy front end with the "eyes" closed. Coupe doors were cut into the roof, which made entry/exit easier in such a low-slung closed car. Faux vents were located in the hood and on the coupe's rear pillars; functional ones had been intended but were cancelled due to cost considerations.
The Sting Ray's interior carried a new interpretation of the twin-cowl Corvette dash motif used since 1958, It was also more practical, now incorporating a roomy glovebox, an improved heater, and the cowl-ventilation system. A full set of round gauges included a huge speedometer and tachometer
Tachometer
A tachometer is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine. The device usually displays the revolutions per minute on a calibrated analogue dial, but digital displays are increasingly common...

. The control tower center console returned, somewhat slimmer but now containing the clock and a vertically situated radio. Luggage space was improved as well, though due to a lack of an external trunklid, cargo had to be loaded behind the seats. The spare tire was located at the rear in a drop-down fiberglass housing beneath the gas tank (which now held 20 gallons instead of 16). The big, round deck emblem was newly hinged to double as a fuel-filler flap, replacing the previous left-flank door.

Though not as obvious as the car's radical styling, the new chassis was just as important to the Sting Ray's success. Maneuverability was improved thanks to the faster "Ball-Race" steering and shorter wheelbase. The latter might ordinarily imply a choppier ride, but the altered weight distribution
Weight distribution
Weight distribution is the apportioning of weight within a vehicle, especially cars, airplanes, and trains.In a vehicle which relies on gravity in some way, weight distribution directly affects a variety of vehicle characteristics, including handling, acceleration, traction, and component life...

 partly compensated for it. Less weight on the front wheels also meant easier steering, and with some 80 additional pounds on the rear wheels, the Sting Ray offered improved traction. Stopping power improved, too. Four-wheel cast-iron 11-inch drum brakes remained standard but were now wider, for an increase in effective braking area. Sintered-metallic linings, segmented for cooling, were again optional. So were finned aluminum drums, which not only provided faster heat dissipation (and thus better fade resistance) but less unsprung weight. Power assist was available with both brake packages. Evolutionary engineering changes included positive crankcase ventilation, a smaller flywheel, and an aluminum clutch housing. A more efficient alternator
Alternator
An alternator is an electromechanical device that converts mechanical energy to electrical energy in the form of alternating current.Most alternators use a rotating magnetic field but linear alternators are occasionally used...

 replaced the old-fashioned generator
Electrical generator
In electricity generation, an electric generator is a device that converts mechanical energy to electrical energy. A generator forces electric charge to flow through an external electrical circuit. It is analogous to a water pump, which causes water to flow...

.
The independent rear suspension Duntov created for Sting Ray was essentially a frame-mounted differential with U-jointed half-shafts tied together by a transverse leaf spring
Leaf spring
Originally called laminated or carriage spring, a leaf spring is a simple form of spring, commonly used for the suspension in wheeled vehicles...

 - a design derived from the CERV I concept. Rubber-cushioned struts carried the differential, which reduced ride harshness while improving tire adhesion, especially on rougher roads. The transverse spring was bolted to the rear of the differential case. A control arm
Control arm
thumb|right|300px|Double Wishbone SuspensionIn automotive suspension, an automobile's control arm or wishbone is a nearly flat and roughly triangular suspension member , that pivots in two places. The broad end of the triangle attaches at the frame and pivots on a bushing...

 extended laterally and slightly forward from each side of the case to a hub carrier, with a trailing radius rod mounted behind it. The half-shafts functioned like upper control arms. The lower arms controlled vertical wheel motion, while the trailing rods took care of fore/aft wheel motion and transferred braking torque to the frame. Shock absorbers were conventional twin-tube units. Considerably lighter than the old solid axle, the new rear suspension array delivered a significant reduction in unsprung weight
Unsprung weight
In a ground vehicle with a suspension, the unsprung weight is the mass of the suspension, wheels or tracks , and other components directly connected to them, rather than supported by the suspension...

, which was important since the 1963 model would retain the previous generation's outboard rear brakes. The new model's front suspension would be much as before, with unequal-length upper and lower A-arms on coil springs concentric with the shocks, plus a standard anti-roll bar. Steering remained the conventional recirculating-ball steering design, but it was geared at a higher 19.6:1 overall ratio (previously 21.0:1). Bolted to the frame rail at one end and to the relay rod at the other was a new hydraulic steering damper (essentially a shock absorber), which helped soak up bumps before they reached the steering wheel. What's more, hydraulically assisted steering would be offered as optional equipment for the first time on a Corvette - except on cars with the two most powerful engines -and offer a faster 17.1:1 ratio, which reduced lock-to-lock turns from 3.4 to just 2.9.

Drivetrains were carried over from the previous generation, comprising four small block 327 V8s, three transmissions, and six axle ratios. Carbureted engines came in 250, 300, and 340-horsepower versions. As before, the base and optional units employed hydraulic lifters, a mild camshaft
Camshaft
A camshaft is a shaft to which a cam is fastened or of which a cam forms an integral part.-History:An early cam was built into Hellenistic water-driven automata from the 3rd century BC. The camshaft was later described in Iraq by Al-Jazari in 1206. He employed it as part of his automata,...

, forged-steel crankshaft
Crankshaft
The crankshaft, sometimes casually abbreviated to crank, is the part of an engine which translates reciprocating linear piston motion into rotation...

, 10.5:1 compression, single-point distributor
Distributor
A distributor is a device in the ignition system of an internal combustion engine that routes high voltage from the ignition coil to the spark plugs in the correct firing order. The first reliable battery operated ignition was developed by Dayton Engineering Laboratories Co. and introduced in the...

, and dual exhausts. The 300-bhp engine produced its extra power via a larger four-barrel carburetor
Carburetor
A carburetor , carburettor, or carburetter is a device that blends air and fuel for an internal combustion engine. It is sometimes shortened to carb in North America and the United Kingdom....

 (Carter AFB instead of the 250's Carter WCFB), plus larger intake valves and exhaust manifold
Exhaust manifold
In automotive engineering, an exhaust manifold collects the exhaust gases from multiple cylinders into one pipe. The word manifold comes from the Old English word manigfeald and refers to the folding together of multiple inputs and outputs.In contrast, an inlet manifold is the part of an engine...

. Again topping the performance chart was a 360-bhp fuel-injected V8, available for an extra $430.40. The car's standard transmission
Transmission (mechanics)
A machine consists of a power source and a power transmission system, which provides controlled application of the power. Merriam-Webster defines transmission as: an assembly of parts including the speed-changing gears and the propeller shaft by which the power is transmitted from an engine to a...

 remained the familiar three-speed manual, though the preferred gearbox continued to be the Borg-Warner manual four-speed, delivered with wide-ratio gears when teamed with the base and 300-bhp engines, and close-ratio gearing with the top two powerplants. Standard axle ratio for the three-speed manual
Manual transmission
A manual transmission, also known as a manual gearbox or standard transmission is a type of transmission used in motor vehicle applications...

 or Powerglide
Powerglide
The Powerglide is a two-speed automatic transmission designed by General Motors. It was available primarily on Chevrolet from January, 1950 through 1973, although some Pontiac models also used this automatic transmission, extensively on models produced for the Canadian market with Chevrolet...

 automatic was 3.36:1. The four-speed gearbox came with a 3.70:1 final drive, but 3.08:1, 3.55:1, 4.11:1, and 4.56:1 gearsets were available. The last was quite rare in production, however.
Corvette's designers and engineers - Ed Cole
Ed Cole
Edward Nicholas Cole was an American automotive executive for General Motors.- Career :Cole was the son of a dairy farmer. In his youth, he designed, built, and sold homemade radio sets, and as a teenager became a field representative for a tractor manufacturer...

, Zora Arkus-Duntov, Bill Mitchell, and others knew that after 10 years in its basic form, albeit much improved, it was time to move on. By decade's end, the machinery would be put into motion to fashion a fitting successor to debut for the 1963 model year. After years of tinkering with the basic package, Bill Mitchell and his crew would finally break the mold of Harley Earl
Harley Earl
Harley J. Earl was first Vice President of Design at General Motors. He was an industrial designer and a pioneer of modern transportation design. A coachbuilder by trade, Earl pioneered the use of freeform sketching and hand sculpted clay models as design techniques...

's original design once and for all. He would dub the Corvette’s second generation "Sting Ray" after the earlier race car of the same name (but now spelled out in separate words).

The C2 was designed by Larry Shinoda
Larry Shinoda
Lawrence Kiyoshi Shinoda was a noted automotive designer who was best known for his work on the Chevrolet Corvette and Ford Mustang....

 under the direction of GM chief stylist Bill Mitchell. Inspiration was drawn from several sources: the contemporary Jaguar E-Type
Jaguar E-type
The Jaguar E-Type or XK-E is a British automobile, manufactured by Jaguar between 1961 and 1975. Its combination of good looks, high performance, and competitive pricing established the marque as an icon of 1960s motoring...

, one of which Mitchell owned and enjoyed driving frequently; the radical Stingray Racer
Corvette Stingray (Concept car)
The Corvette Stingray was a privately funded concept car that formed a basis for the second generation Corvette Sting Ray. The Stingray racer-concept car was designed by Pete Brock the youngest designer to work at GM at that time, Bill Mitchell, GM Vice President of styling, and Larry Shinoda in...

 Mitchell designed in 1959 as Chevrolet no longer participated in factory racing; and a Mako shark Mitchell caught while deep-sea fishing. Zora Arkus-Duntov ("father of the Corvette") disliked the split rear window (which also raised safety concerns due to reduced visibility) and it was discontinued in 1964, as were the fake hood vents.

1963

The 1963 Corvette Sting Ray not only had a new design, but also newfound handling
Car handling
Automobile handling and vehicle handling are descriptions of the way wheeled vehicles perform transverse to their direction of motion, particularly during cornering and swerving. It also includes their stability when moving at rest. Handling and braking are the major components of a vehicle's...

 prowess. The Sting Ray was also a somewhat lighter Corvette, so acceleration improved despite unchanged horsepower. 21,513 units would be built for the 1963 model year, which was up 50 percent from the record-setting 1962 version. Production was divided almost evenly between the convertible and the new coupe - 10,919 and 10,594, respectively - and more than half the convertibles were ordered with the optional lift-off hardtop. Nevertheless, the coupe wouldn't sell as well again throughout the Sting Ray years. In fact, not until 1969 (by which time the coupe came with removable T-tops) did the closed Corvette sell better than the open one. Equipment installations for 1963 began reflecting the market's demand for more civility in sporting cars. - the power brake option went into 15 percent of production, power steering
Power steering
Power steering helps drivers steer vehicles by augmenting steering effort of the steering wheel.Hydraulic or electric actuators add controlled energy to the steering mechanism, so the driver needs to provide only modest effort regardless of conditions. Power steering helps considerably when a...

 into 12 percent. On the other hand, only 278 buyers specified the $421.80 air conditioning; leather upholstery - a mere $80.70 - was ordered on only about 400 cars. The beautiful cast aluminum knock-off wheels, manufactured for Chevy by Kelsey-Hayes, cost $322.80 a set, but few buyers checked off that option. However, almost 18,000 Sting Rays left St. Louis with the four-speed manual gearbox - better than four out of every five.

All 1963 cars had 327cid engines, which made 250 hp standard, with optional variants that made 300 hp, 340 hp and 360 hp. The most powerful engine was the Rochester fuel injected 327cid V8, which made 360 hp (272 kW). Options available on the C2 included AM-FM radio (mid 1963), air conditioning and leather upholstery. New for the 1963 model year was an optional electronic ignition, the breakerless magnetic pulse-triggered Delcotronic, first offered by Pontiac
Pontiac
Pontiac was an automobile brand that was established in 1926 as a companion make for General Motors' Oakland. Quickly overtaking its parent in popularity, it supplanted the Oakland brand entirely by 1933 and, for most of its life, became a companion make for Chevrolet. Pontiac was sold in the...

 on some 1963 models.

1964

For 1964 Chevrolet made only evolutionary changes to the Corvette. Besides the coupe's backbone window, the two simulated air intakes were eliminated from the hood, though their indentations remained. Also, the decorative air-exhaust vent on the coupe's rear pillar was made functional, but only on the left side. The car's rocker-panel trim lost some of its ribs and gained black paint between those ribs that remained; wheel covers were simplified; and the fuel filler/deck emblem gained concentric
Concentric
Concentric objects share the same center, axis or origin with one inside the other. Circles, tubes, cylindrical shafts, disks, and spheres may be concentric to one another...

 circles around its crossed-flags insignia. Inside, the original color-keyed steering wheel rim was now done in simulated walnut.

A few suspension refinements were made for 1964. The front coil springs were changed from constant-rate to progressive or variable-rate and were more tightly wound at the top, while leaf thickness of the rear transverse spring was also altered thus providing a more comfortable ride with no sacrifice in handling. Shock absorbers were reworked toward the same end. The 1964 Corvette arrived with a new standard shock containing within its fluid reservoir a small bag of Freon gas that absorbed heat. Chevy added more sound insulation and revised body and transmission mounts for the 1964 Corvette. It also fitted additional bushings to quiet the shift linkage and placed a new boot around the lever. The result was a more livable car for everyday transportation.

Drivetrain choices remained basically as before but the high-performance pair received several noteworthy improvements. The solid-lifter unit was massaged with a high-lift, long-duration camshaft to produce 365 bhp and breathed through a big four-barrel Holley
Holley
-People:* Alexander Lyman Holley, mechanical engineer* Charles Hardin Holley was the real name of singer Buddy Holly* George Holley , England international footballer...

 carburetor instead of the base engine's Carter unit. The fuel injected engine also gained 15 horsepower, bringing its total to 375, but at a then-hefty $538.00. Although transmission options remained ostensibly the same for 1964, the two Borg-Warner T-10 four-speeds gave way to a similar pair of gearboxes built at GM's Muncie, Indiana, transmission facility. Originally a Chevy design, it had an aluminum case like the Borg-Warner box but came with stronger synchronizers and wider ratios for better durability and drivability. If enthusiast publications liked the first Sting Ray, they loved the 1964, though some writers noted the convertible's tendency to rattle and shake on rough roads. Sales of the 1964 Sting Ray reached 22,229 - another new Corvette record, if up only a little from banner-year 1963. Coupe volume dropped to 8304 units, but convertible sales more than compensated, rising to 13,925.

1965

For its third season, the 1965 Corvette Sting Ray further cleaned up style-wise and was muscled up with the addition of an all-new braking system and larger powerplants.
1965 styling alterations were subtle, confined to a smoothed-out hood now devoid of scoop indentations, a trio of working vertical exhaust vents in the front fenders that replaced the previous nonfunctional horizontal "speedlines," restyled wheel covers and rocker-panel moldings, and minor interior trim revisions. The 1965 Corvette Sting Ray became ferocious with the mid-year debut of a big-block V-8, the 425 hp 396 in³ (6.5 L) ("big block") V8
V8 engine
A V8 engine is a V engine with eight cylinders mounted on the crankcase in two banks of four cylinders, in most cases set at a right angle to each other but sometimes at a narrower angle, with all eight pistons driving a common crankshaft....

. Ultimately, this spelled the end for the Rochester
Rochester Products Division
Rochester Products Division was a division of General Motors that manufactured carburetors, and related components including emissions control devices and cruise control systems in Rochester, New York...

 fuel injection system, as the carbureted 396/425 hp option cost $292.70 to the fuel injected 327/375 hp's $538.00. Few buyers could justify $245 more for 50 hp less, even if the FI cars offered optional bigger brakes not available on carburated models. After only 771 fuel injected cars were built in 1965, Chevrolet discontinued the option. It would be 18 years until it returned.

Four-wheel disc brake
Disc brake
The disc brake or disk brake is a device for slowing or stopping the rotation of a wheel while it is in motion.A brake disc is usually made of cast iron, but may in some cases be made of composites such as reinforced carbon–carbon or ceramic matrix composites. This is connected to the wheel and/or...

s were also introduced in 1965. The brakes had a four-piston design with two-piece calipers and cooling fins for the rotors. Pads were in constant contact with the rotors, but the resulting drag was negligible and didn't affect fuel economy. Further, the light touching kept the rotors clean and didn't diminish pad life, which was, in fact, quite high: a projected 57,000 miles for the front brakes and about twice that distance for the rear binders. Total swept area for the new system was 461 square inches, a notable advance on the 328 square inches of the previous all-drum system. Per pending federal regulation, there was also a dual master cylinder with separate fluid reservoirs for the front and rear lines. Road testers rightly applauded the all-disc brakes. Testers found that repeated stops from 100 mph produced no deterioration in braking efficiency, and even the most sudden stops were rock-stable. The drum brakes remained available, however, as a $64.50 credit option, but only 316 of the 23,562 Corvettes built that year came with drums. A side exhaust system appeared as an option as did a telescopic steering wheel. Also available were alloy spinner rims, at US$322 a set.

1966

For the 1966 Corvette, the big-block V-8 came in two forms: 390 bhp on 10.25:1 compression, and 425 bhp via 11:1 compression, larger intake valves, a bigger Holley four-barrel carburetor on an aluminum manifold, mechanical lifters, and four- instead of two-hole main bearing caps. Though it had no more horsepower than the previous high-compression 396, the 427 in³ (7 L), 430 hp (321 kW V8 packed a lot more torque - 460 pound/feet vs. 415. Of course, engine outputs were sometimes deliberately understated in the Sixties. Here, 420 and 450 bhp would be closer to the truth. With big-block V-8s being the order of the day, there was less demand for the 327, so small-block offerings were cut from five to two for 1966, and only the basic 300- and 350-bhp versions were retained. Both required premium fuel on compression ratios well over 10.0:1, and they didn't have the rocket-like thrust of the 427s, but their performance was impressive all the same. As before, both could be teamed with the Powerglide automatic
Automatic transmission
An automatic transmission is one type of motor vehicle transmission that can automatically change gear ratios as the vehicle moves, freeing the driver from having to shift gears manually...

, the standard three-speed manual, or either four-speed option.

The 1966 model's frontal appearance was mildly altered with an eggcrate grille insert to replace the previous horizontal bars, and the coupe lost its roof-mounted extractor vents, which had proven inefficient. Head rests were a new option. This relative lack of change reflected plans to bring out an all-new Corvette for 1967. It certainly did not reflect a fall-off in the car's popularity, however. In fact, 1966 would prove another record-busting year, with volume rising to 27,720 units, up some 4200 over 1965's sales.

1967

The 1967 Corvette Sting Ray was the last Corvette of the second generation, and five years of refinements made it the best of the line. Though it was meant to be a redesign, its intended successor the C3
Chevrolet Corvette C3
The Chevrolet Corvette is a sports car produced by the Chevrolet division of General Motors for the 1968 through 1982 model years. Corvette chief Zora Arkus-Duntov wanted a striking new Corvette; although engines and chassis components were mostly carried over from the previous generation, its...

 was found to have some undesirable aerodynamic traits. Duntov demanded more time in the wind tunnel to devise fixes before it went into production. Still, the 1967 Corvette was a Sting Ray refined to the limit.
It was certainly the cleanest Sting Ray ever, though changes were again modest. Five smaller front fender vents replaced the three larger ones, and flat-finish rockers sans ribbing conferred a lower, less chunky appearance. New was a single backup light, mounted above the license plate. The previous models' wheel covers gave way to slotted six-inch Rally wheels with chrome beauty rings and lug nuts concealed behind chrome caps. Interior alterations were modest and included revised upholstery, and the handbrake moved from beneath the dash to between the seats. The convertible's optional hardtop was now dubiously offered with a black vinyl cover
Vinyl roof
Vinyl roof refers to a vinyl covering for an automobile's top. This covering was originally designed to give the appearance of a convertible to models with a fixed roof, but eventually it evolved into a styling statement in its own right. Vinyl roofs were most popular in the American market, and...

, which was a fad
FAD
In biochemistry, flavin adenine dinucleotide is a redox cofactor involved in several important reactions in metabolism. FAD can exist in two different redox states, which it converts between by accepting or donating electrons. The molecule consists of a riboflavin moiety bound to the phosphate...

 among all cars at the time.
The 427 was available with a 1282 ft³/min (605 L/s) Holley triple two-barrel carburetor arrangement, which the factory called Tri-Power. The ultimate Corvette engine for 1967 was coded L88, even wilder than the L89, and was that was as close to a pure racing engine as Chevy had ever offered in regular production. Besides the lightweight heads and bigger ports, it came with an even hotter camshaft, stratospheric 12.5:1 compression, an aluminum radiator, small-diameter flywheel, and a single huge Holley four-barrel carburetor. Although the factory advertised L88 rating was 430 bhp at 4600 rpm, the true rating was said to be about 560 bhp at 6400 rpm. The very high compression ratio required 103-octane
Octane
Octane is a hydrocarbon and an alkane with the chemical formula C8H18, and the condensed structural formula CH36CH3. Octane has many structural isomers that differ by the amount and location of branching in the carbon chain...

 racing fuel, which was available only at select service stations. Clearly this was not an engine for the casual motorist. When the L88 was ordered, Chevy made several individual options mandatory, including Positraction
Positraction
Positraction was the last album released by New York band Live Skull. It was released by Caroline Records in 1988.-Track listing:All songs written by Live Skull, unless otherwise noted.# "Circular Saw" 2:06# "Richie's House" 3:39# "Mr...

, the transistorized ignition, heavy-duty suspension, and power brakes, as well as RPO C48, which deleted the normal radio and heater to cut down on weight and discourage the car's use on the street. As costly as it was powerful - at an additional $1,500 over the base $4,240.75 price - the L88 engine and required options were sold to a mere 20 buyers that year. With potential buyers anticipating the car's overdue redesign, sales for the Sting Ray's final year totaled 22,940, down over 5,000 units from 1966 results. Meanwhile, Chevrolet readied its third-generation Corvette for the 1968 model year.

Engines

Engine Year Power
327 in³ Small-Block V8 1963–1965 250 hp (186 kW)
1963–1967 300 hp (224 kW)
1963 340 hp (254 kW)
1965–1967 350 hp (254 kW)
1964–1965 365 hp (272 kW)
327 in³ Small-Block FI
Fuel injection
Fuel injection is a system for admitting fuel into an internal combustion engine. It has become the primary fuel delivery system used in automotive petrol engines, having almost completely replaced carburetors in the late 1980s....

 V8
1963 360 hp (268 kW)
1964–1965 375 hp (280 kW)
396 in³ Big-Block V8 1965 425 hp (317 kW)
427 in³ Big-Block V8 1966–1967 390 hp (291 kW)
1966 425 hp (317 kW)
427 in³ Big-Block Tri-Power V8 1967 400 hp (298 kW)
1967 435 hp (324 kW)

Reviews

The Sting Ray was lauded in the automotive press almost unanimously for its handling, road adhesion, and sheer explosive power.

Car Life magazine bestowed its annual Award for Engineering Excellence on the 1963 Sting Ray. Chevy's small-block V-8 - the most consistent component of past Corvette performance was rated by the buff books to be even better in the Sting Ray. The 1963 was noted to have an edge over past models in both traction and handling because the new independent rear suspension reduced wheelspin compared to the live-axle cars.

Motor Trend
Motor Trend
Motor Trend is an American automobile magazine. It first appeared in September 1949, issued by Petersen Publishing Company in Los Angeles, and bearing the tag line "The Magazine for a Motoring World". Petersen Publishing was sold to British publisher EMAP in 1998, who sold the former Petersen...

tested a four-speed fuel injected version with 3.70:1 axle. They reported a 0-60 mph in 5.8 seconds and a 14.5-second standing quarter-mile at 102 mph. The magazine also recorded better than 18 miles per gallon at legal highway speeds and 14.1 mpg overall.

Motor Trend clocked a 1964 fuel-injected four-speed coupe with the 4.11:1 rear axle, aluminum knock-off wheels (perfected at last and available from the factory), the sintered-metallic brakes, and Positraction through the quarter-mile in 14.2 seconds at 100 mph and streaked from 0 to 60 mph in just 5.6 seconds.

Road & Track
Road & Track
Road & Track is an American automotive enthusiast magazine. It is owned by Hearst Magazines, and is published monthly. The editorial offices are located in Newport Beach, California.-History:...

tested the tame 300-bhp Powerglide automatic setup in a '64 coupe and recorded a 0-60-mph time of 8.0 seconds, a standing-quarter in 15.2 seconds at 85 mph, and average fuel consumption of 14.8 mpg.

In 2004, Sports Car International
Sports Car International
Sports Car International was an automobile magazine in the United States published by Ross Periodicals Inc. that was focused on sports cars. The magazine was published from 1986 to 2008. Its business offices were located in Novato, California....

named the Sting Ray number five on the list of Top Sports Cars of the 1960s.

Production notes

Year Production Base Price Notes
1963  21,513 $ 4,037 New coupe body style introduced (only year for split rear window, coupe more expensive than convertible.
1964  22,229 $ 4,037 Rear window of coupe changed to single pane; hood louvers deleted.
1965  23,562 $ 4,106 396 in Big-Block
Chevrolet Big-Block engine
The Chevrolet big block is a series of large displacement V8 engines that were developed in the USA during the 1950s and 1960s. As American automobiles grew in size and weight following the Second World War the engines powering them had to keep pace...

 V8 added; last year of fuel injection
Fuel injection
Fuel injection is a system for admitting fuel into an internal combustion engine. It has become the primary fuel delivery system used in automotive petrol engines, having almost completely replaced carburetors in the late 1980s....

 until 1982; side-discharge exhaust introduced.
1966  27,720 $ 4,084 427 in Big-Block V8 with unique bulging hood; 327 in 300-horsepower small block V8 standard.
1967  22,940 $ 4,240 Five-louver fenders are unique; Big-Block hood bulge redesigned as a scoop; parking brake changed from pull-out under dash handle to lever mounted in center console; Tri-power 427 would become most sought-after Corvette ever.
Total 117,964

Gallery - Chevrolet Corvette C2

Grand Sport

In 1962 Corvette chief engineer Zora Arkus-Duntov initiated a program to produce a lightweight version based on a prototype that mirrored the new 1963 Corvette. Concerned about Ford and what they were doing with the Shelby Cobra, Duntov's program included plans to build 125 Grand Sport Corvettes to make them eligible for international Grand Touring races. After the GM executives learned of the secret project, the program was stopped, and only five cars were built. All five cars have survived and are in private collections. They are among the most coveted and valuable Corvettes ever built, not because of what they accomplished, but because of what might have been.

The cars were driven by famed contemporary race drivers such as Roger Penske
Roger Penske
Roger S. Penske is the owner of the automobile racing team Penske Racing, the Penske Corporation, and other automotive related businesses. A winning racer in the late 1950s, Penske was named 1961's Sports Car Club of America Driver of the Year by Sports Illustrated...

, A.J. Foyt, Jim Hall
Jim Hall (race car driver)
Jim Hall is a former racecar driver and constructor from the United States. He competed in Formula One from to , participating in 12 World Championship Grands Prix and numerous non-Championship races....

, and Dick Guldstrand among others. Dick Thompson
Dick Thompson
Dr. Dick Thompson is a retired American racecar driver. A Washington, D.C. dentist by trade, he is known as "The Flying Dentist". He won numerous Sports Car Club of America championships and was inducted in the Corvette Hall of Fame. Thompson brought credibility to the Corvette as a world-class...

 was the first driver to win a race in the Grand Sport. He won a 1963 Sports Car Club of America
Sports Car Club of America
The Sports Car Club of America is a club and sanctioning body supporting road racing, rallying, and autocross in the United States. Formed in 1944, it runs many programs for both amateur and professional racers.-History:...

 race at Watkins Glen
Watkins Glen International
Watkins Glen International is an auto race track located near Watkins Glen, New York, at the southern tip of Seneca Lake. The facility is owned by International Speedway Corporation...

 on August 24, 1963 driving Grand Sport 004.

The Corvette Grand Sports were raced with several different engines, but the most serious factory engine actually used was a 377 cubic inch displacement, all-aluminum, small block with four Weber side-draft carburetors, rated 550 hp at 6400 rpm. Body panels were made of thinner fiberglass to reduce weight and the frame was constructed of amazingly light steel tubes. When started, the Grand Sport project was known simply as "The Lightweight".

Concept car

The 1963 Corvette Rondine (Ron-di-nay) concept car, based on the 1963 C2 chassis was built for the 1963 Paris Auto Show. It was designed by Tom Tjaarda
Tom Tjaarda
Tom Tjaarda , born July 23, 1934, is an American automobile designer of Dutch origin. He is the son of the Dutch-American auto designer Joop Tjaarda van Starkenberg , who renamed himself John Tjaarda on coming to the U.S. in 1923...

 of Pininfarina
Pininfarina
Pininfarina S.p.A. is an Italian car design firm and coachbuilder in Cambiano, Italy.Founded as Società anonima Carrozzeria Pinin Farina in 1930 by automobile designer and builder Battista "Pinin" Farina, Pininfarina has been employed by a wide variety of high-end automobile manufacturers,...

. Sold at Barrett-Jackson 2008 for $1,600,000.00

See also

  • Corvette Stingray (concept car)
    Corvette Stingray (Concept car)
    The Corvette Stingray was a privately funded concept car that formed a basis for the second generation Corvette Sting Ray. The Stingray racer-concept car was designed by Pete Brock the youngest designer to work at GM at that time, Bill Mitchell, GM Vice President of styling, and Larry Shinoda in...

  • Corvette Mako Shark (Concept car)
  • Chevrolet Corvette CERV
    Chevrolet Corvette CERV
    The Chevrolet Engineering Research Vehicle is a series of Chevrolet experimental cars. Chevrolet Staff engineer, designer, and race car driver Zora Arkus-Duntov started development of the CERV I in 1959, and began work on the CERV II in 1963...

  • Zora Arkus-Duntov "Father of the Corvette"
    Zora Arkus-Duntov
    Zora Arkus-Duntov was a Belgian-born American engineer. His work on the Chevrolet Corvette earned him the nickname "Father of the Corvette."- Early life :Zora was born Zachary Arkus in Belgium on Christmas Day, 1909...

  • Bill Thomas Cheetah
    Bill Thomas Cheetah
    The Bill Thomas Cheetah was a sports car car built from 1963-1965 by Chevrolet performance tuner Bill Thomas as a competitor to Carroll Shelby's Cobra....


External links

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