1966 CORVETTE

1966 CORVETTE

General Specifications

Chasis:

Wheelbase: 98"

Overall Length: 175.2"

Tire Size: 7.75 x 15 inches

Body Data:

Sting Ray, 8 Cylinder:

2 Door Fastback Coupe, 2 Passenger, Series #194; Body #37

Base Price: $4,295; Shipping Weight: 2,985 Pounds;

Production Total: 9,958

2 Door Convertible, 2 Passenger, Series #194; Body #67

Base Price: $4,084; Shipping Weight: 3,005 Pounds;

Production Total: 17,762

8 Cylinder Engine Specifications:

300 HP Engine:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 4.001" x 3.25"

Engine Displacement: 327 Cu. In.

Compression Ratio: 10.5 to 1;

Taxable Horsepower: 51.23

Horsepower: 300 @ 5,000 RPM

Maximum Torque: 360 Ft Lbs @ 3,400 RPM

Normal Oil Pressure: 30-45 PSI

One, 4 Barrel Carburetor

350 HP Engine:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 4.001" x 3.25"

Engine Displacement: 327 Cu. In.

Compression Ratio: 11.0 to 1;

Taxable Horsepower: 51.23

Horsepower: 350 @ 5,800 RPM

Maximum Torque: 360 Ft Lbs @ 3,600 RPM

Normal Oil Pressure: 30-45 PSI

One, 4 Barrel Carburetor

390 HP Engine:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 4.25" x 3.76"

Engine Displacement: 427 Cu. In.

Compression Ratio: 10.25 to 1;

Taxable Horsepower: 57.80

Horsepower: 390 @ 5,200 RPM

Maximum Torque: 470 Ft Lbs @ 3,600 RPM

Normal Oil Pressure: 50-75 PSI

One, 4 Barrel Carburetor

425 HP Engine:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 4.25" x 3.76"

Engine Displacement: 427 Cu. In.

Compression Ratio: 11.00 to 1;

Taxable Horsepower: 57.80

Horsepower: 425 @ 5,600 RPM

Maximum Torque: 460 Ft Lbs @ 4,000 RPM

Normal Oil Pressure: 50-75 PSI

Fuel Injection

Available Axle Ratios:

4.11:1; 4.56:1; 3.08:1; 3.36:1; 3.55:1; 3.70:1

1966 CORVETTE

Tune Up Specifications:

8 Cylinder 327 Cu. In. Engine, 300 HP:

Ground Polarity: Negative

Voltage: 12 Volts

Spark Plug: AC 44

Spark Plug Gap .035"

Point Gap: Turn adjusting screw in until engine misfires, then back off 1/2 turn.

Distributor Cam Angle: 28-32 Degrees

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

Ignition Timing: 6 Degrees BTDC on Damper

Engine Idle Speed:

Standard Transmission: 500 RPM

Automatic Transmission: 500 RPM, in Drive

Compression Pressure @ Cranking Speed: 160 PSI

Fuel Pump Pressure: 5 to 6-1/2 PSI

8 Cylinder 327 Cu. In. Engine, 300 HP, with Standard Transmission & A.I.R. System:

Ground Polarity: Negative

Voltage: 12 Volts

Spark Plug: AC 44

Spark Plug Gap .035"

Point Gap: Turn adjusting screw in until engine misfires, then back off 1/2 turn.

Distributor Cam Angle: 28-32 Degrees

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

Ignition Timing: 6 Degrees BTDC on Damper

Engine Idle Speed:

Standard Transmission: 700 RPM

Compression Pressure @ Cranking Speed: 160 PSI

Fuel Pump Pressure: 5 to 6-1/2 PSI

8 Cylinder 327 Cu. In. Engine, 300 HP, Automatic Transmission & A.I.R. System:

Ground Polarity: Negative

Voltage: 12 Volts

Spark Plug: AC 44

Spark Plug Gap .035"

Point Gap: Turn adjusting screw in until engine misfires, then back off 1/2 turn.

Distributor Cam Angle: 28-32 Degrees

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

Ignition Timing: 4 Degrees After TDC on Damper

Engine Idle Speed:

Automatic Transmission: 600 RPM, in Drive

Compression Pressure @ Cranking Speed: 160 PSI

Fuel Pump Pressure: 5 to 6-1/2 PSI

8 Cylinder 327 Cu. In. Engine, 350 HP:

Ground Polarity: Negative

Voltage: 12 Volts

Spark Plug: AC 44

Spark Plug Gap .035"

Point Gap: Turn adjusting screw in until engine misfires, then back off 1/2 turn.

Distributor Cam Angle: 28-32 Degrees

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

Ignition Timing: 10 Degrees BTDC on Damper

Engine Idle Speed:

Standard Transmission: 700 RPM

Compression Pressure @ Cranking Speed: 150 PSI

Fuel Pump Pressure: 5 to 6-1/2 PSI

8 Cylinder 327 Cu. In. Engine, 350 HP, with A.I.R. System:

Ground Polarity: Negative

Voltage: 12 Volts

Spark Plug: AC 44

Spark Plug Gap .035"

Point Gap: Turn adjusting screw in until engine misfires, then back off 1/2 turn.

Distributor Cam Angle: 28-32 Degrees

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

Ignition Timing: 10 Degrees BTDC on Damper

Engine Idle Speed:

Standard Transmission: 700 RPM

Compression Pressure @ Cranking Speed: 150 PSI

Fuel Pump Pressure: 5 to 6-1/2 PSI

8 Cylinder 427 Cu. In. Engine, 390 HP:

Ground Polarity: Negative

Voltage: 12 Volts

Spark Plug: AC 43N

Spark Plug Gap .035"

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

Ignition Timing: 4 Degrees BTDC on Damper

Engine Idle Speed:

Standard Transmission: 550 RPM

Automatic Transmission: 550 RPM in Drive

Compression Pressure @ Cranking Speed: 160 PSI

Fuel Pump Pressure: 5 to 6-1/2 PSI

8 Cylinder 427 Cu. In. Engine, 390 HP, with A.I.R. System:

Ground Polarity: Negative

Voltage: 12 Volts

Spark Plug: AC 43N

Spark Plug Gap .035"

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

Ignition Timing: 4 Degrees BTDC on Damper

Engine Idle Speed:

Standard Transmission: 600 RPM

Automatic Transmission: 550 RPM in Drive

Compression Pressure @ Cranking Speed: 160 PSI

Fuel Pump Pressure: 5-1/2 to 6-1/2 PSI

8 Cylinder 427 Cu. In. Engine, 425 HP:

Ground Polarity: Negative

Voltage: 12 Volts

Spark Plug: AC 43N

Spark Plug Gap .035"

Point Gap: Turn adjusting screw in until engine misfires, then back off 1/2 turn.

Distributor Cam Angle: 28-32 Degrees

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

Ignition Timing: 10 Degrees BTDC on Damper

Engine Idle Speed:

Standard Transmission: 800 RPM

Compression Pressure @ Cranking Speed: 160 PSI

Fuel Pump Pressure: 5-1/2 to 7-1/2 PSI

Valve Specifications:

8 Cylinder Engine, 327 Cu. In., 300 H.P., With Hydralic Lifters:

Operating (Tappet) Clearance, Hot:

Intake: 1 Turn

Exhaust: 1 Turn

Valve Seat Angle:

Seat: 46 Degrees

Face 45 Degrees

Valve Spring Height Installed: 1.66"

Valve Spring Pressure: 175 Lbs @ 1.26"

Valve Stem Clearance:

Intake .001"-.0027"

Exhaust .001"-.0027"

Valve Stem Diameter:

Intake: .3410"-.3417"

Exhaust: .3410"-.3417"

8 Cylinder Engine, 327 Cu. In., 350 H.P., With Hydralic Lifters:

Operating (Tappet) Clearance, Hot:

Intake: 1 Turn

Exhaust: 1 Turn

Valve Seat Angle:

Seat: 46 Degrees

Face 45 Degrees

Valve Spring Height Installed: 1.66"

Valve Spring Pressure: 182 Lbs @ 1.21"

Valve Stem Clearance:

Intake .001"-.0027"

Exhaust .001"-.0027"

Valve Stem Diameter:

Intake: .3410"-.3417"

Exhaust: .3410"-.3417"

8 Cylinder Engine, 427 Cu. In., 390 H.P., With Hydralic Lifters:

Operating (Tappet) Clearance, Hot:

Intake: 1 Turn

Exhaust: 1 Turn

Valve Seat Angle:

Seat: 46 Degrees

Face 45 Degrees

Valve Spring Height Installed: 1.88"

Valve Spring Pressure: 315 Lbs @ 1.38"

Valve Stem Clearance:

Intake .001"-.0025"

Exhaust .0012"-.0027"

Valve Stem Diameter:

Intake: .3715"-.3722"

Exhaust: .3713"-.3720"

8 Cylinder Engine, 427 Cu. In., 425 H.P., With Mechanical Lifters:

Operating (Tappet) Clearance, Hot:

Intake: .020"

Exhaust: .024"

Valve Seat Angle:

Seat: 46 Degrees

Face 45 Degrees

Valve Spring Height Installed: 1.88"

Valve Spring Pressure: 315 Lbs @ 1.38"

Valve Stem Clearance:

Intake .001"-.0025"

Exhaust .0012"-.0027"

Valve Stem Diameter:

Intake: .3715"-.3722"

Exhaust: .3713"-.3720"

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

8 Cylinder Engine, 327 Cu. In., Except 350 HP:

Piston Clearance: .0005"-.0011"

Ring End Gap:

Compression: .013"

Oil: .015

Wrist Pin Diameter: .927"

Rod Bearings:

Shaft Diameter: 1.999"-2.000"

Rod Bearing Clearance: .004"

Main Bearings:

Shaft Diameter:

Front: 2.2987"-2.2997"

Rear: 2.2978"-2.2988"

Others: 2.2983"-2.2993"

Main Bearing Clearance: .004"

Thrust on Rear Bearing: Rear

Crankshaft End Play: .003"-.0011"

8 Cylinder Engine, 327 Cu. In., 350 HP:

Piston Clearance: .0024"-.003"

Ring End Gap:

Compression: .010"

Oil: .015

Wrist Pin Diameter: .927"

Rod Bearings:

Shaft Diameter: 1.999"-2.000"

Rod Bearing Clearance: .004"

Main Bearings:

Shaft Diameter:

Front: 2.2987"-2.2997"

Rear: 2.2978"-2.2988"

Others: 2.2983"-2.2993"

Main Bearing Clearance: .004"

Thrust on Rear Bearing: Rear

Crankshaft End Play: .003"-.0011"

8 Cylinder Engine, 427 Cu. In., Except 425 H.P.:

Piston Clearance: .0009"-.0015"

Ring End Gap:

Compression: .010"

Oil: .010"

Wrist Pin Diameter: .989"

Rod Bearings:

Shaft Diameter: 2.199"-2.200"

Rod Bearing Clearance: .004"

Main Bearings:

Shaft Diameter:

#1 & 2: 2.7487"-2.7497"

#3 & 4: 2.7482"-2.7492"

#5: 2.7478"-2.7488"

Main Bearing Clearance: .004"

Thrust on Rear Bearing: Rear

Crankshaft End Play: .006"-.010"

8 Cylinder Engine, 427 Cu. In., 425 H.P.:

Piston Clearance: .0037"-.0043"

Ring End Gap:

Compression: .010"

Oil: .010"

Wrist Pin Diameter: .989"

Rod Bearings:

Shaft Diameter: 2.199"-2.200"

Rod Bearing Clearance: .004"

Main Bearings:

Shaft Diameter:

#1 & 2: 2.7487"-2.7497"

#3 & 4: 2.7482"-2.7492"

#5: 2.7478"-2.7488"

Main Bearing Clearance: .004"

Thrust on Rear Bearing: Rear

Crankshaft End Play: .006"-.010"

Capacities:

327 Cu. In. Engine, 300 H.P.:

Cooling System:

Without Heater: 15 Quarts

With Heater: 16 Quarts

With Air Conditioning: 16 Quarts

Radiator Cap Pressure:

With Air Conditioning: 15 PSI

Without Air Conditioning: 15 PSI

Thermostat Opening Temperature: 180 Degrees

Fuel Tank: 20 Gallons

Engine Oil Refill: 5 Quarts with New Filter

Transmission Oil:

3 Speed Manual: 2 Pints

4 Speed Manual: 2-1/2 Pints

Automatic Transmission:

Refill: 1-1/2 Quarts

Total Capacity: 7-1/2 Quarts

Rear Axle: 3.7 Pints

327 Cu. In. Engine, 350 H.P.:

Cooling System:

Without Heater: 15 Quarts

With Heater: 16 Quarts

With Air Conditioning: 16 Quarts

Radiator Cap Pressure:

With Air Conditioning: 15 PSI

Without Air Conditioning: 15 PSI

Thermostat Opening Temperature: 180 Degrees

Fuel Tank: 20 Gallons

Engine Oil Refill: 6 Quarts with New Filter

Transmission Oil:

4 Speed Manual: 2-1/2 Pints

Rear Axle: 3.7 Pints

427 Cu. In. Engine:

Cooling System:

Without Heater: 22 Quarts

With Heater: 23 Quarts

With Air Conditioning: 23 Quarts

Radiator Cap Pressure:

With Air Conditioning: 15 PSI

Without Air Conditioning: 15 PSI

Thermostat Opening Temperature: 180 Degrees

Fuel Tank: 20 Gallons

Engine Oil Refill: 6 Quarts with New Filter

Transmission Oil:

4 Speed Manual: 2-1/2 Pints

Rear Axle: 3.7 Pints

Engine Tightening Specifications:

327 Cu. In. 8 Cylinder:

Spark Plugs: 25 Ft. Lbs

Cylinder Head Bolts: 65 Ft. Lbs.

Intake Manifold: 30 Ft. Lbs.

Exhaust Manifold: 20 Ft. Lbs

Rocker Arm Cover: 55 Inch Lbs.

Connecting Rod Cap Bolts: 35 Ft. Lbs

Main Bearing Cap Bolts: 80 Ft. Lbs.

Flywheel to Crankshaft: 60 Ft. Lbs

Vibration Damper: 60 Ft. Lbs.

427 Cu. In. 8 Cylinder:

Spark Plugs: 25 Ft. Lbs

Cylinder Head Bolts: 80 Ft. Lbs.

Intake Manifold: 30 Ft. Lbs.

Exhaust Manifold: 20 Ft. Lbs

Rocker Arm Stud: 50 Ft. Lbs.

Rocker Arm Cover: 50 Inch Lbs.

Connecting Rod Cap Bolts: 50 Ft. Lbs

Main Bearing Cap Bolts:

2 Bolt Caps: 95 Ft. Lbs.

4 Bolt Caps: 115 Ft. Lbs.

Flywheel to Crankshaft: 65 Ft. Lbs

Vibration Damper: 85 Ft. Lbs.

Alternators:

8 Cylinder Engine:

#1100693

Rated Hot Output: 37 Amperes

Field Current, 12 Volts @ 80 Degrees: 1.9 to 2.3 Amperes

Output @ 14 Volts

2,000 RPM: 25 Amperes

5,000 RPM: 35 Amperes

Voltage Regulator #1119515

Field Relay:

Air Gap: .015"

Point Gap: .030"

Closing Voltage: 1.5 to 3.2 Volts

Voltage Regulator:

Air Gap: .067"

Point Gap: .014"

Voltage @ 125 Degrees: 13.5 to 14.4 Volts

#1100694

Rated Hot Output: 55 Amperes

Field Current, 12 Volts @ 80 Degrees: 2.2 to 2.6 Amperes

Output @ 14 Volts

2,000 RPM: 32 Amperes

5,000 RPM: 50 Amperes

Voltage Regulator #1119515

Field Relay:

Air Gap: .015"

Point Gap: .030"

Closing Voltage: 1.5 to 3.2 Volts

Voltage Regulator:

Air Gap: .067"

Point Gap: .014"

Voltage @ 125 Degrees: 13.5 to 14.4 Volts

#1100696

Rated Hot Output: 42 Amperes

Field Current, 12 Volts @ 80 Degrees: 2.2 to 2.6 Amperes

Output @ 14 Volts

2,000 RPM: 28 Amperes

5,000 RPM: 40 Amperes

Voltage Regulator #1119515

Field Relay:

Air Gap: .015"

Point Gap: .030"

Closing Voltage: 1.5 to 3.2 Volts

Voltage Regulator:

Air Gap: .067"

Point Gap: .014"

Voltage @ 125 Degrees: 13.5 to 14.4 Volts

#1100750

Rated Hot Output: 61 Amperes

Field Current, 12 Volts @ 80 Degrees: 2.2 to 2.6 Amperes

Voltage Regulator #1116515

Field Relay:

Air Gap: .015"

Point Gap: .030"

Closing Voltage: 1.5 to 3.2 Volts

Voltage Regulator:

Air Gap: .067"

Point Gap: .014"

Distributors:

8 Cylinder Engine:

#1111093.

Clockwise Rotation

Point Gap: Turn adjusting screw in until engine misfires, then back off 1/2 turn

Cam Angle: 28-32 Degrees

Breaker Arm Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 1 Degree @ 500 RPM

Full Advance: 14 Degrees @ 2,200 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger: 8"

Maximum Vacuum Advance: 7 Degrees @ 15" Vacuum

#1111141

Clockwise Rotation

Point Gap: Turn adjusting screw in until engine misfires, then back off 1/2 turn

Cam Angle: 28-32 Degrees

Breaker Arm Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 450 RPM

Full Advance: 15 Degrees @ 2,500 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger: 6"

Maximum Vacuum Advance: 7 Degrees @ 12" Vacuum

#1111142

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 450 RPM

Full Advance: 15 Degrees @ 2,500 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger: 6"

Maximum Vacuum Advance: 7 Degrees @ 12" Vacuum

#1111145

No further information available

#1111153

Clockwise Rotation

Point Gap: Turn adjusting screw in until engine misfires, then back off 1/2 turn

Cam Angle: 28-32 Degrees

Breaker Arm Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 450 RPM

Full Advance: 13 Degrees @ 2,050 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger: 6"

Maximum Vacuum Advance: 7 Degrees @ 12" Vacuum

#1111156

Clockwise Rotation

Point Gap: Turn adjusting screw in until engine misfires, then back off 1/2 turn

Cam Angle: 28-32 Degrees

Breaker Arm Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 450 RPM

Full Advance: 15 Degrees @ 2,550 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger: 4"

Maximum Vacuum Advance: 8 Degrees @ 8" Vacuum

#1111157

Clockwise Rotation

Point Gap: Turn adjusting screw in until engine misfires, then back off 1/2 turn

Cam Angle: 28-32 Degrees

Breaker Arm Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 0 Degree @ 450 RPM

Full Advance: 15 Degrees @ 2,550 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger: 4"

Maximum Vacuum Advance: 8 Degrees @ 8" Vacuum

Starting Motors:

8 Cylinder, 327 Cu. In. Engine:

#1107320

Clockwise Rotation

Brush Tension: 35 Ounces (Minimum)

No Load Test: 65-100 Amps, 10.6 Volts @ 3,600-5,100 RPM

Resistance Test: 300-360 Amps, 3.5 Volts

8 Cylinder, 327 & 427 Cu. In. Engines:

#1107352

Clockwise Rotation

Brush Tension: 35 Ounces (Minimum)

No Load Test: 65-100 Amps, 10.6 Volts @ 3,600-5,100 RPM

Resistance Test: 300-360 Amps, 3.5 Volts

#11073565Clockwise Rotation

Brush Tension: 35 Ounces (Minimum)

No Load Test: 65-100 Amps, 10.6 Volts @ 3,600-5,100 RPM

Resistance Test: 300-360 Amps, 3.5 Volts

Rear Axle & Brake Specifications:

Carrier Type: Integral

Differential Bearing Preload:

Method: Shim

Adjustment: .010"

Ring Gear Pinion Backlash:

Method: Check with Dial Gauge

Adjustment: .005"-.008"

Pinion Bearing Preload:

Method: Spacer

Adjustment:

New Bearings: 20-25 Inch Lbs.

Brake Drum Diameter: 11-3/4"

Wheel Cylinder Bore:

Front 1-7/8"

Rear: 1-3/8"

Master Cylinder Bore: 1"

Wheel Alignment Specifictions:

Caster: + 1 Degrees

Camber: 3/4 Degrees

Toe In: 3/16 to 5/16""

Toe Out on Turns:

Outer Wheel: 18-1/2 Degrees

Inner Wheel: 20 Degrees

Carburetor Types:

8 Cylinder Engines:

Holley Model #4160, 327 Cu. In. 300 H.P.Engine

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

Fast Idle Speed: 2,200 RPM

Float Bowl Vent Vane: .065"

Choke Unloader Setting: .260"

Pump Stroke: .015"

Holley Model #4160, 327 Cu. In. 350 H.P. Engine

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

Fast Idle Speed: 2,000 RPM

Float Bowl Vent Vane: .065"

Choke Unloader Setting: .260"

Pump Stroke: .015"

Holley Model #4160, 427 Cu. In. 390 H.P.Engine

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

Fast Idle Speed: 2,000 RPM

Float Bowl Vent Vane: .065"

Choke Unloader Setting: .260"

Pump Stroke: .015"

VIN Numbers:

194676S00001 - 194676S127720

194376S00001 - 194376S127720

Popular Options:

Leather Seats; Tinted Glass; Power Windows; Auxiliary Hardtop for Convertibles; Heater & Defroster Delete; Air Conditioning; Posi-Traction Axle; Telescopic Steering Wheel; Power Steering; Power Brakes; Sintered Metallic Brake Linings; Powerglide Automatic Transmission; 4 Speed Manual Transmission; 36 Gallon Fuel Tank for Coupes; Woodgrained Plastic Steering Wheel; Side Mount Exhaust System; Special Front & Rear Suspension; Cast Aluminum Knock-Off Wheels; Back Up Lights; AM-FM Radio; Special Performance Equipment; Head Rests; Shoulder Belts; Hazzard Lamp Switch; Various Engine Options.

Paint Colors:

Code Color

900 Tuxedo Black

972 Ermine White

974 Rally Red

976 Nassau Blue

978 Laguna Blue

980 Trophy Blue

982 Mosport Green

984 Sunfire Yellow

986 Silver Pearl

988 Milano Maroon

1966 Corvette Promotional Model Cars Available:

Plastic: Corvette Sting Ray Convertible; Corvette Sting Ray Coupe

1966 Corvette Historical Data:

1966 Corvette model year introduction date is not available.

Model Year Production: 27,720 Cars