1955 CORVETTE

General Specifications

Chasis:

Wheelbase: 102"

Overall Length: 167"

Tire Size: 6.70 x 15 inches

Body Data:

6 Cylinder:

2 Door Convertible, 2 Passenger, Model #2934-6;

Base Price: $2,774; Shipping Weight: N/A Pounds;

Production Total: N/A

8 Cylinder:

2 Door Convertible, 2 Passenger, Model #2934-8;

Base Price: $2,909; Shipping Weight: 2,705 Pounds;

Production Total: 700*

* Includes 6 Cylinder Production.

6 Cylinder Engine Specifications:

Engine Type: In-Line 6 Cylinder, Overhead Valve

Bore & Stroke: 3-9/16" x 3-15/16"

Engine Displacement: 235 Cu. In.

Compression Ratio: 8.0 to 1;

Taxable Horsepower: 30.40

Horsepower: 155 @ 4,200 RPM

Maximum Torque: 223 Ft Lbs @ 2,400 RPM

Normal Oil Pressure: 45 PSI.

8 Cylinder Engine Specifications:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 3-3/4" x 3"

Engine Displacement: 265 Cu. In.

Compression Ratio: 8.0 to 1;

Taxable Horsepower: 45.0

Horsepower: 195 @ 5,000 RPM

Maximum Torque: 260 Ft Lbs @ 3,000 RPM

Normal Oil Pressure: 35 PSI

1955 CORVETTE

Tune Up Specifications:

6 Cylinder Engine:

Ground Polarity: Negative

Voltage: 6 Volts

Spark Plug: AC 43-5

Spark Plug Gap .035"

Point Gap: .016"

Distributor Cam Angle: 41-47 Degrees

Firing Order: 1-5-3-6-2-4;

Ignition Timing: Mark-Steel Ball Located on Flywheell

Engine Idle Speed: Automatic Transmission - 425 RPM

Cylinder Head Torque: 90-95 Ft. Lbs

Compression @ Cranking Speed - 130 Lb

8 Cylinder Engine:

Ground Polarity: Negative

Voltage: 12 Volts

Spark Plug: AC 43-5

Spark Plug Gap .035"

Point Gap: .016"

Distributor Cam Angle: 26-33 Degrees

Firing Order: 1-8-4-3-6-5-7-2

Ignition Timing: 6th Line Before "O" Mark on Vibration Damper

Engine Idle Speed: Automatic Transmission - 425 RPM

Cylinder Head Torque: 60-70 Ft. Lbs

Compression @ Cranking Speed - 130 Lb

Valve Specifications:

6 Cylinder Engine:

Operating (Tappet) Clearance, Hot:

Intake .006"

Exhaust .013"

Valve Seat Angle: Intake 30 degrees; Exhaust 45 degrees

Valve Timing:

Intake Opens 19-1/2 Degree Before Top Dead Center

Exhaust Closes 5 Degrees After Top Dead Center

Valve Spring Pressure:

Outer Spring: 155 Lbs @ 1.46"

Inner Spring: 58 Lbs @ 1.39"

Fale Lift, Zero Lash:

Intake: .4051"

Exhaust: .4143"

Valve Stem Clearance:

Intake .001-.003

Exhaust .001-.003

Valve Stem Diameter:

Intake: .3410"-.3417"

Exhaust: .3410"-.3417"

8 Cylinder Engine:

Operating (Tappet) Clearance, Hot:

Intake .008"

Exhaust .018"

Valve Seat Angle: 45 degrees

Valve Timing:

Intake Opens 21-1/2 Degree Before Top Dead Center

Exhaust Closes 23-1/2 Degrees After Top Dead Center

Valve Spring Pressure: 156 Lbs @ 1.31"

Fale Lift, Zero Lash:

Intake: .4043"

Exhaust: .4136"

Valve Stem Clearance:

Intake .001-.003

Exhaust .0015-.003

Valve Stem Diameter:

Intake: .3415"-.3422"

Exhaust: .3410"-.3417"

Pistons, Pins, Rings, Crankshaft, & Bearings Data:

6 Cylinder Engine:

Fitting Pistons:

Shim Thickness to Use: .0015"

Pounds Pull On Scale: 7 to 18

Ring End Gap:

Compression: .007"

Oil: .015

Wrist Pin Diameter: .8662"

Rod Bearings:

Shaft Diameter: 2.311"-2.312"

Rod Bearing Clearance: .001"-.003"

Rod End Play: .005"-.012"

Rod Bolt Torque: 35-45 Ft. Lbs.

Main Bearings:

Shaft Diameter:

No 1: 2.6835"-2.6845" No 2: 2.7145"-2.7155"

No 3: 2,7455"-2.7465" No 4: 2.7765"-2.7775"

Main Bearing Clearance: .001"-.003"

Thrust on #3 Bearing

Crankshaft End Play: .003"-.009"

Rod Bolt Torque: 100-110 Ft. Lbs

8 Cylinder Engine:

Fitting Pistons:

Shim Thickness to Use: .0015"

Pounds Pull On Scale: 7 to 18

Ring End Gap:

Compression: .009"

Oil: .015

Wrist Pin Diameter: .9271"

Rod Bearings:

Shaft Diameter: 1.999"-2.000"

Rod Bearing Clearance: .001"-.003"

Rod End Play: .008-.014

Rod Bolt Torque: 30-35 Ft. Lbs.

Main Bearings:

Shaft Diameter: 2.2978"-2.2988"

Main Bearing Clearance: .001"-.003"

Crankshaft End Play: .002"-.006"

Rod Bolt Torque: 60-70 Ft. Lbs

Capacities:

6 Cylinder Engine:

Cooling System:

Without Heater: 17-3/4 Quarts

With Heater: 18-1/4 Quarts

Radiator Cap Pressure: 3-1/2 to 4-1/2 PSI

Fuel Tank: 17-1/4 Gallons;

Engine Oil Refill: 5 Qts*

Automatic Transmission: 5 Qts

Rear Axle: 4 pints

* Add One Quart for Filter

8 Cylinder Engine:

Cooling System:

Without Heater: 16 Quarts

With Heater: 17 Quarts

Radiator Cap Pressure: 6-1/4 to 7-1/2 PSI

Fuel Tank: 17-1/4 Gallons;

Engine Oil Refill: 4 Qts*

Automatic Transmission: 5 Qts

Rear Axle: 4 pints

* Add One Quart for Filter

Generators:

6 Cylinder Engine:

#1102793

Rotation: Clockwise

Generator Output: 45 Amps @ 2,450 RPM

Brush Spring Tension: 28 Ounces

Field Current @ 6 Volts: 1.87-2.0 Volts

Regulator #1118725

Cutout Relay:

Voltage to Close Points: 6.4

Armature Air Gap: .020"

Voltage Regulator Setting: 7.4 Volts

Current Regulator Setting: 47 Amperes

Current & Voltage Armature Air Gap: .075"

Ground Polarity: Negative

8 Cylinder Engine:

#1102020

Rotation: Clockwise

Generator Output: 30 Amps @ 2,150 RPM

Brush Spring Tension: 28 Ounces

Field Current @ 12 Volts: 1.48-1.62 Volts

Regulator #1118825

Cutout Relay:

Voltage to Close Points: 12.8

Armature Air Gap: .020"

Voltage Regulator Setting: 14.5 Volts

Current Regulator Setting: 25 Amperes

Current & Voltage Armature Air Gap: .075"

Ground Polarity: Negative

Distributors:

6 Cylinder Engine:

#1112314

Clockwise Rotation

Cam Angle: 40-1/2 to 47-1/2 Degrees

Point Gap .016"

Condensor .18-.23 Mfds.

Breaker Arm Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 1 Degree @ 375 RPM

Full Advance: 13 Degrees @ 1,750 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 4 to 6 Degrees

Inches of Vacuum for Full Plunger Travel: 7-1/2 to 10 Inches

Maximum Vacuum Advance: 7-1/2 Degrees

8 Cylinder Engine:

#1110847

Clockwise Rotation

Cam Angle: 26 to 33 Degrees

Point Gap .016"

Condensor .18-.23 Mfds.

Breaker Arm Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 1 Degree @ 400 RPM

Full Advance: 16 Degrees @ 1,800 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 5 to 7 Degrees

Inches of Vacuum for Full Plunger Travel: 12 to 14-1/2 Inches

Maximum Vacuum Advance: 11-3/4 Degrees

Starting Motors:

6 Cylinder:

#1108035

Clockwise Rotation

Brush Tension: 24-28 Ounces

No Load Test: 80 Amps, 5.67 Volts @ 5,500 RPM

Torque Test: 600 Amps, 3.0 Volts. Torque 14 Ft Lb

8 Cylinder:

#1107627, 1107645

Clockwise Rotation

Brush Tension: 35 Ounces (Minimum)

No Load Test: 75 Amps, 10.3 Volts @ 6,900 RPM

Torque Test: 435 Amps, 5.8 Volts. Torque 10-1/2 Ft Lb

Rear Axle & Brake Specifications:

Ring Gear Pinion Backlash: .005"-.008"

Drive Pinion Adjustment: Shims

Drive Pinion Bearing Adjustment: None

Axle Shaft End Play: Controlled by Bearing Retainer Ring

Wheel Cylinder Bore:

Front 1-1/8"

Rear: 1"

Master Cylinder Bore: 1"

Wheel Alignment Specifictions:

Caster: +1/2

Camber: +1/2

Toe In: 0 to 1/8""

Toe Out on Turns:

Outer Wheel: 17 Degrees

Inner Wheel: 20 Degrees

Kingpin Angle: 3-1/2 Degrees to 4-1/2 Degrees

Carburetor Types:

6 Cylinder Engine;

Carter YN (3 Carburetors Per Engine):

Carburetor #'s:

2066SA, # 3706989

Float Level: 3/8"

Idle Screw Setting, Turns to Open: 1/2 to 1-1/2 Turns

Fast Udle Adjustment: .020"

8 Cylinder Engine:

Carter WCFB

Carburetor #2218S

Idle Screw, Turns to Open: 1/4 to 1-1/4 Turns

Float Level:

Primary: 1/8"

Secondary: 1/4"

Float Drop:

Primary: 5/8"

Secondary: 3/4"

Fast Idle: .015"

Unloader: 3/16"

Bowl Vapor Vent: 1/16"

Automatic Choke Setting: Index

Carter WCFB

Carburetor #2218S

Idle Screw, Turns to Open: 1/4 to 1-1/4 Turns

Float Level:

Primary: 1/8"

Secondary: 1/4"

Float Drop:

Primary: 5/8"

Secondary: 3/4"

Fast Idle: .015"

Unloader: 3/16"

Bowl Vapor Vent: 1/16"

Secondary Throttle Lever: .017"-.022"

Automatic Choke Setting: 2 Lean

VIN Numbers:

* VE55S001001 - VE55S001700

* "V" is omitted on 6 Cylinder Models

Popular Options:

Signal Seeking AM Radio; Heater; Windshield Washer; Parking Brake Alarm; Courtesy Lights, Turn Signals; Powerglide Automatic Transmission, White Sidewall Tires.

Paint Codes:

567 Polo White

570 Pennant Blue Poly

573 Corvette Copper

596 Gypsy Red

632 Harvest Gold

1955 Corvette Promotional Model Cars Available:

None Originally Issued.

Plastic: Reissue: Roadster

1955 Corvette Historical Data:

1955 Corvette model year introduction date is not available.

Model Year Production: 700 Cars

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