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1956 Chevrolet Corvette:

New Styling and a Future Classic

1956 Corvette brochure
The Corvette received a new body style, authored by Bob Cadaret, in 1956. Strange as it may seem now, designing the '56 was not a sought after assignment by Chevrolet designers. Previous Corvettes had sold poorly and dealers hated it. The logic of the day is that working on a car that people would buy was the smarter move. History would disagree, as the 1956 Corvette styling is regarded as one of the best looking cars ever.

More importantly, its destiny as Americas premier competitive sports car would take shape.

Many of the problems that plagued the 1953-55 models were addressed. The new design featured outside door handles, roll-up windows and a factory sourced hardtop was available. Power windows and a power top were options. The interior remained the same.

1956 Chevrolet Corvette three speed manual transmission Right: Three speed manual transmission, first seen in a Corvette in 1955, was the standard transmission in 1956. It continued as the standard transmission until 1969. The two speed Powerglide Automatic Transmission (Code 313, $188.50) would be available until 1967.
1956 Chevrolet Corvette C1

1956 Corvette Coves
photo courtesy GM
The introduction of the 1956 brought a significant styling element known as the "coves". They first appeared on Cadillac's 1955 Motorama LaSalle II dream car. The horizontal scallop would continue in all the straight axle Corvettes (until 1962) and then reappear in later models.
1956 Corvette Coves
1955, 1956 Corvette front ends
photo courtesy GM
The grill area and much of the bumpers were unchanged between 1955 (left) and 1956 (right).

Dual carburetor set-up, (Code 469, $172.20) 1956 Chevrolet Corvette Engine, 265 cubic inch, 225 HP engine  (Code 469, $172.20).<br  />David Kimble illustration
In December 1953, Corvette engineer Zora Arkos-Duntov wrote a memo that would have a large impact on the direction the Corvette would take. He made the case that the future of the Corvette would be best served by catering to the performance oriented youth market, a segment dominated by Ford at the time. The approach proposed involved making performance oriented parts to be made available to the public and be included on the options sheet presented to Corvette buyers. The results started to appear on the 1956 Corvette in the form of option 469, which added a second four barrel carburetor (left) to the engine, resulting in a 15 hp increase to 225 hp. Also available was a special high lift camshaft, known as the "Duntov Cam". Labeled option 449, it was only available with the 225 hp engine.

Chevrolet went racing with the latest Corvette and was rewarded with excellent success. It started in January 1956 when John Fitch set a production car record of 145 MPH at Daytona Speed Week. He then drove a stock 1956 Corvette at the NASCAR speed week Flying Mile event in Daytona, setting a speed record of 145.543 mph.

New suspension revisions by Zora Arkos-Duntov gave Chevrolet the confidence to enter four Corvettes in the Florida International 12-Hour Grand Prix of Endurance, at Sebring, Florida. One car, entered in the C/Modified class finished first in its class and ninth overall. A car entered in B/Production finishes sixth in class / 15th overall. Another retired after only 20 minutes with a broken axle shaft. The fourth car, also entered in B/Production, blew its engine one hour and 20 minutes into the race.


Chevrolet had a long list of improvements to crow about with their new Corvette, and the sales brochure handled the job nicely. Pass your mouse over the various panels to view a detailed image to the right.

1956 Corvette Specs

Body Specs

Wheelbase 102 inches
Front Track 57.00 inches
Rear Track 59.00 inches
Length 168.01 inches
Width 70.46 inches
Height (at Windshield) 51.09 inches
Turning Circle 36.55 feet (right); 36.93 feet (left)
Steering ratio 16:1
Shipping Weight
(fuel and water not included)
2,730 lbs. (manual transmission)
2,845 lbs. (automatic transmission)
Axle Ratio 3.70:1; Optional: 3.27:1, 4.11:1
Tire Size 6.70-15 4 Ply Rating


Engine Specs

Type: V8
Valve Location: In Head
Bore / Stroke: 3.750" / 3.00"
Displacement: 265 Cubic Inches
Compression Ratio: 9.25 : 1
Maximum Brake Horsepower: 195 @ 5,000 RPM
225 @ 5,200 RPM with two four barrel carburetors Code 469
240 with high-lift camshaft Code 449
Maximum Torque: 260 lb. ft. @ 3,000 RPM
270 @ 3,600 RPM with two four barrel carburetors Code 469
Crankshaft Material: Drop Forged Steel
Crankshaft Weight: 47.75 lbs.
Piston Weight: 18.77 oz.
Recommended Idle: 425 (In Drive)
Camshaft Material: Cast Alloy Iron
Oil Pump Type: Gear
Normal Oil Pressure 30 psi @ 1170 - 1200 RPM
Oil Pressure Gauge Electric
Crankcase Oil Capacity (less filter) 4 Quarts
Recommended Oil Grade Above 32°: SAE 20W or 30W
To 0°: SAE 10W or 10W-30
To -10°: SAE 10W
Below 0°: SAE 5W or 5W-20
Sustained high speed driving, above 90°, SAE 30
Fuel Tank 16.4 Gallons
Fuel Filter Strainer (in fuel tank)
Fuel Pump Mechanical
Fuel Pressure 4 - 5¼ psi
Carburetor Carter WCFB 2366SA
Carburetor
Optional dual four barrel carburetors Code 469
Carter WCFB 2419S (front) / WCFB 2362S (rear)
Cooling System Capacity (without heater) 16 Quarts
Cooling System Capacity (with heater) 17 Quarts
Thermostat Opening 160° F
Battery Delco 25M53W (12 volt, nine plate)
53 Amp-hour @ 20 hour rate

Ignition System
Coil Delco-Remy 1115091
Coil current rating 4 amps (engine stopped)
1.8 amps (engine running)
Breaker Gap .016 - .021"
Ignition Timing 4° BTC @ idle
Ignition Timing Centrifugal Advance 13 ¾° @ 1,750 RPM
Ignition Timing Vacuum Advance 13 ¾° @ 15" Hg.
Spark Plug AC 43-5R
Spark Plug Thread 14 mm.
Spark Plug Torque 20 - 25 lb.-ft.
Spark Plug Gap .033" - .038"
Firing Order 1-8-4-3-6-5-7-2

1956 Corvette Options, Prices

Code Description Production Price
101 Heater n/a $123.65
102 AM Radio, Signal Seeking 2,717 (78.37%) $198.90
107 Parking Brake Alarm 2,685 (77.44%) $5.40
108 Courtesy Lights 2,775 (80.04%) $8.65
109 Windshield Washers 2,815 (81.19%) $11.85
290 Whitewall Tires, 6.70x15 n/a $32.30
313 Powerglide Automatic Transmission n/a $188.50
419 Auxiliary Hardtop 2,076 (59.88%) $215.20
426 Power Windows 547 (15.78%) $64.60
440 Two-Tone Paint Combination 1,259 (36.31%) $19.40
449 Special High-Lift Camshaft 111 (3.20%) $188.30
469 265ci, 225hp Engine (2 4 bbl. carburetors) 3,080 (88.84%) $172.20
471 Rear Axle, 3.27:1 ratio n/a n/a
473 Power Operated Folding Top 2,682 (77.36%) $107.60

Total Production: 3,467
Convertible: 3,467 (100.00%)

Notes: Base Corvette with 265 cu. in. engine and three speed manual transmission: $3,120.00

Colors

Code Exterior Quantity Interior Soft Top Wheels
Onyx Black 810 (23.36%) Red Black / White Black
Aztec Copper 402 (11.60%) Beige Beige / White Copper
Cascade Green 290 (8.36%) Beige Beige / White Green
Arctic Blue 390 (11.25%) Beige / Red Beige / White Blue
Venetian Red 1,040 (30.00%) Red Beige / White Red
Polo White 532 (15.34%) Red Black / White Red

Notes: Interior quantities: Beige: 887; Red: 2,580.

Note: Clicking on an image with this symbol (Boxes) will lead to a larger image.


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