1977 CHEVROLET MONZA

1977 CHEVROLET MONZA

Model Designations:

Chevrolet Monza, 4 & 8 Cylinder

Chevrolet Monza, 4 Cylinder, Body Styles:

2 Door Town Coupe, 4 Passenger, Body #1HM27

Base Price: $3,560; Shipping Weight: 2,580 Pounds

Production Total: 34,133*

2 Door Hatchback 2 + 2 Coupe, 4 Passenger, Body #1HR07

Base Price: $3,840; Shipping Weight: 2,671 Pounds

Production Total: 39,215*

* Includes 8 Cylinder Production.

Chevrolet Monza, 8 Cylinder, Body Styles:

2 Door Town Coupe, 4 Passenger, Body #1HM27

Base Price: $3,765; Shipping Weight: N/A

Production Total: *

2 Door Hatchback 2 + 2 Coupe, 4 Passenger, Body #1HV77

Base Price: $4,045; Shipping Weight: N/A

Production Total: *

* Included with 4 Cylinder Production.

General Specifications:

Wheelbase:

All Styles: 97"

Overall Length:

Monza Town Coupe: 177.8"

Monza Hatchback: 179.3"

Tire Sizes:

All Styles: A78 X 13"

Engine Specifications, 140 Cu. In., 4 Cylinder, 84 HP:

Engine Type: In-Line 4 Cylinder, Overhead Cam

Bore & Stroke: 3.501" X 3.625"

Engine Displacement: 140 Cu. In.

Compresssion Ratio: 8.00 to 1

Taxable Horsepower: 19.6

Horsepower: 84 @ 4,400 RPM

Torque: 117 Ft. Lbs. @ 2,400 RPM

Normal Oil Pressure: 36-45 PSI

Carburetor: 2 Barrel

8 Cylinder Engine-305 Cu. In., 145 HP:

Bore & Stroke: 3.736" X 3.48"

Engine Displacement: 305 Cu. In.

Compression Ratio: 8.50:1

Taxable Horsepower: 44.66

Horsepower: 145 @ 3,800 RPM

Torque: 245 Ft. Lbs @ 2,400 RPM

Normal Oil Pressure: 32-40 Lbs/Sq. In.

Carburetor: 2 Barrel

Tune Up Specifications:

4 Cylinder, 140 Cubic Inch Engine, Except California & High Altitude:

Spark Plug Type: AC R43TS

Spark Plug: Gap .035"

Firing Order: 1-3-4-2

Ignition Timing:

Standard Transmission: TDC

Automatic Transmission: 2 Degrees BTDC

Curb Idle Speed:

Standard Transmission: 700 RPM; 1,250 RPM w/AC Solenoid Energized

Automatic Transmission: 650 RPM, in Drive, 850 RPM w/AC Solenoid Energized

Fast Idle Speed:

Standard Transmission: 2,500 RPM on high step of fast idle cam with A/C "Off"

Automatic Transmission: 2,500 RPM on high step of fast idle cam with A/C "Off"

Fuel Pump Pressure: 3 to 4-1/2 PSI

4 Cylinder, 140 Cubic Inch Engine, California:

Spark Plug Type: AC R43TS

Spark Plug: Gap .035"

Firing Order: 1-3-4-2

Ignition Timing:

Standard Transmission: 2 Degrees After TDC

Automatic Transmission: TDC

Curb Idle Speed:

Standard Transmission: 800 RPM; 1,250 RPM w/AC Solenoid Energized

Automatic Transmission: 650 RPM, in Drive, 850 RPM w/AC Solenoid Energized

Fast Idle Speed:

Standard Transmission: 2,500 RPM on high step of fast idle cam with A/C "Off"

Automatic Transmission: 2,500 RPM on high step of fast idle cam with A/C "Off"

Fuel Pump Pressure: 3 to 4-1/2 PSI

4 Cylinder, 140 Cubic Inch Engine, High Altitude:

Spark Plug Type: AC R43TS

Spark Plug: Gap .035"

Firing Order: 1-3-4-2

Ignition Timing:

Standard Transmission: TDC

Automatic Transmission: 2 Degrees After TDC

Curb Idle Speed:

Standard Transmission: 800 RPM; 1,250 RPM w/AC Solenoid Energized

Automatic Transmission: 700 RPM, in Drive, 850 RPM w/AC Solenoid Energized

Fast Idle Speed:

Standard Transmission: 2,500 RPM on high step of fast idle cam with A/C "Off"

Automatic Transmission: 2,500 RPM on high step of fast idle cam with A/C "Off"

Fuel Pump Pressure: 3 to 4-1/2 PSI

8 Cylinder, 305 Cu. In. Engine, Except California & High Altitude:

Spark Plug Type: AC R45TS

Spark Plug: Gap .045"

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

Ignition Timing:

Standard Transmission: 8 Degrees BTDC

Automatic Transmission: 8 Degrees BTDC

Curb Idle Speed:

Standard Transmission: 600 RPM; 700 RPM with A/C solenoid energized

Automatic Transmission: 500 RPM, in Drive; 700 RPM with A/C solenoid energized

Fuel Pump Pressure: 7-1/2 to 9 PSI

8 Cylinder, 305 Cu. In. Engine, California:

Spark Plug Type: AC R45TS

Spark Plug: Gap .045"

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

Ignition Timing:

Automatic Transmission: 6 Degrees BTDC

Curb Idle Speed:

Automatic Transmission: 500 RPM, in Drive; 700 RPM with A/C solenoid energized

Fuel Pump Pressure: 7-1/2 to 9 PSI

8 Cylinder, 305 Cu. In. Engine, High Altitude:

Spark Plug Type: AC R45TS

Spark Plug: Gap .045"

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

Ignition Timing:

Automatic Transmission:

Engine Code CPU: 6 Degrees BTDC

Others: 8 Degrees BTDC

Curb Idle Speed:

Automatic Transmission: 600 RPM, in Drive; 700 RPM with A/C solenoid energized

Fuel Pump Pressure: 7-1/2 to 9 PSI

Valve Specifications:

4 Cylinder, 140 Cu. In. Engine:

Valve Lash (Cold): Hydrauic Lifters

Valve Angles:

Seat: 46 Degrees

Face: 45 Degrees

Valve Spring Height: 1.746"

Valve Spring Pressure: 190 Lbs @ 1.31 inches

Valve Stem Clearance: Intake .001"-.0027"

Exhaust .001"-.0027"

Valve Stem Diameter:

Intake: .3410"-.3417"

Exhaust: .3410"-.3417"

Valve Specifications, 8 Cylinder, 305 Cu. In. Engine:

Valve Lash: 3/4 Turn

Valve Angles:

Seat: 46 Degrees

Face: 45 Degrees

Valve Spring Height:

Intake: 1.70"

Exhaust: 1.61"

Valve Spring Pressure:

Intake: 200 Lbs @ 1.25 inches

Exhaust: 200 Lbs. @ 1.16 inches

Valve Stem Clearance: Intake .001"-.0027"

Exhaust .001"-.0027"

Valve Stem Diameter:

Intake: .3410"-.3417"

Exhaust: .3410"-.3417"

Pistons, Pins, Rings, Crankshaft & Bearings Data:

4 Cylinder, 140 Cu. In. Engine:

Piston Clearance: .0018"-.0028"

Piston Rings:

Ring End Gap:

Compression:

Top Ring: .015"

Lower Ring: .009"

Oil: .010"

Wrist Pin Diameter: .9272"

Rod Bearings:

Shaft Diameter: 1.999"-2.000"

Rod Bearing Clearance: .0007"-.0027"

Main Bearings:

Shaft Diameter: 2.3004"

Main Bearing Clearance: .0003"-.0029"

Thrust on Bearing #4

Crankshaft End Play: .002"-.008"

8 Cylinder, 305 Cu. In. Engine:

Piston Clearance: .0007"-.0027"

Piston Rings:

Ring End Gap:

Compression: .010"

Oil: .015"

Wrist Pin Diameter: .9272"

Rod Bearings:

Shaft Diameter: 2.099"-2.100"

Rod Bearing Clearance: .0013"-.0035"

Main Bearings:

Shaft Diameter: 2.4502"

Main Bearing Clearance:

#1: .0008"-.0020"

#2, 3, 4: .0011"-.0032"

#5: .0017"-.0032"

Thrust on Bearing #5

Crankshaft End Play: .002"-.007"

Engine Tightening Specifications:

140 Cu. In. Engine:

Spark Plugs: 20 Ft. Lbs.

Cylinder Head Bolts: 60 Ft. Lbs.

Intake Manifold: 30 Ft. Lbs.

Exhaust Manifold: 30 Ft. Lbs.

Cam Cover: 80 Inch Lbs.

Connecting Rod Cap Bolts: 35 Ft. Lbs.

Main Bearing Cap Bolts: 65 Ft. Lbs.

Flywheel to Crankshaft: 65 Ft. Lbs.

Vibration Damper or Pulley: Pulley to Damper Screws: 80 Ft. Lbs.

305 Cu. In. 8 Cylinder Engines:

Spark Plugs: 15 Ft. Lbs.

Cylinder Head Bolts: 65 Ft. Lbs.

Intake Manifold: 30 Ft. Lbs.

Exhaust Manifold:

Outside Bolts: 20 Ft. Lbs.

Inside Bolts: 30 Ft. Lbs.

Rocker Arm Cover: 45 Inch Pounds

Connecting Rod Cap Bolts: 45 Ft. Lbs.

Main Bearing Cap Bolts: 70 Ft. Lbs.

Flywheel to Crankshaft: 60 Ft. Lbs.

Vibration Damper or Pulley: Pulley to Damper Screws: 50 Ft. Lbs.

Capacities:

4 Cylinder, 140 Cu. In. Engine:

Cooling System:

With Heater: 8 Quarts

With Air Conditioning: 8 Quarts

Radiator Cap Pressure: 15 PSI

Thrermostat Opening: 195 Degrees

Fuel Tank: 18-1/2 Gallons

Engine Oil Refill: 5 Quarts, with Filter

Transmission Oil:

Standard Transmission:

4 Speed: 2.4 Pints

5 Speed: 3.5 Pints

Automatic Transmission:

Refill: 3 Quarts

Total Capacity: 10 Quarts

Rear Axle: 3.5 Pints

8 Cylinder, 305 Cu. In. Engine:

Cooling System:

With Heater: 18 Quarts

With Air Conditioning: 18 Quarts

Radiator Cap Pressure: 15 PSI

Thrermostat Opening: 195 Degrees

Fuel Tank: 18-1/2 Gallons

Engine Oil Refill: 5 Quarts, with Filter

Transmission Oil:

4 Speed: 2.4 Pints

5 Speed: 3.5 Pints

Automatic Transmission:

Refill: 3 Quarts

Total Capacity: 10 Quarts

Rear Axle: 2.8 Pints

Alternator Specifications:

Model: 1102394

Rated Hot Output: 37 Amperes

Field Current, 12 Volts @ 80 Degrees: 4.0 to 4.5 Amperes

Cold Output @ 14 Volts:

5,000 RPM: 33 Amperes

Regulator: Integral

Voltage @ 85 Degrees: 13.8-14.8 Volts

Model: 1102479

Rated Hot Output: 55 Amperes

Field Current, 12 Volts @ 80 Degrees: 4.0 to 4.5 Amperes

Cold Output @ 14 Volts:

5,000 RPM: 51 Amperes

Regulator: Integral

Voltage @ 125 Degrees: 13.6-14.2 Volts

Model: 1102495

Rated Hot Output: 55 Amperes

Field Current, 12 Volts @ 80 Degrees: 4.0 to 4.5 Amperes

Cold Output @ 14 Volts:

5,500 RPM: 55 Amperes

Regulator: Integral

Voltage @ 125 Degrees: 13.6-14.2 Volts

Model: 1102858

Rated Hot Output: 37 Amperes

Field Current, 12 Volts @ 80 Degrees: 4.0 to 4.5 Amperes

Cold Output @ 14 Volts:

5,000 RPM: 33 Amperes

Regulator: Integral

Voltage @ 85 Degrees: 13.8-14.8 Volts

Model: 1102881

Rated Hot Output: 37 Amperes

Field Current, 12 Volts @ 80 Degrees: 4.0 to 4.5 Amperes

Cold Output @ 14 Volts:

5,000 RPM: 33 Amperes

Regulator: Integral

Voltage @ 125 Degrees: 13.5-14.2 Volts

Model: 1102854

Rated Hot Output: 63 Amperes

Field Current, 12 Volts @ 80 Degrees: 4.0 to 4.5 Amperes

Cold Output @ 14 Volts:

5,000 RPM: 60 Amperes

Regulator: Integral

Rear Axle Specifications:

Carrier Type: Integral

Ring Gear & Pinion Backlash:

Method: Shims

Adjustment: .005"-.008"

Pinion Bearing Preload:

Method: Spacer

New Bearings: 10-25 Inch Lbs.

Used Bearings: 8-12 Inch Lbs.

Differential Bearing Preload:

Method: Shims

Brake Specifications:

Brake Drum Diameter: 9.500"

Wheel Cylinder Bore:

Front Disc Brakes: 2-1/2"

Rear: 3/4"

Master Cylinder Bore:

Disc Brakes: 3/4"

Power Brakes: 3/4"

Wheel Alignment Specifications:

Caster: -3/4 Degree

Camber:

Left: +1/4 Degrees

Right: +1/4 Degrees

Toe Out: 0"-1/8"

Distributor Specifications:

#1103229

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 600 RPM

Intermediate Advance: 3 Degrees @ 800 RPM

Full Advance: 10 Degrees @ 2,300 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 3-1/2"

Maximum Vacuum Advance: 10 Degrees @ 12" Vacuum

#1103230

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 600 RPM

Intermediate Advance: 3 Degrees @ 800 RPM

Full Advance: 10 Degrees @ 2,300 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 3-1/2"

Maximum Vacuum Advance: 10 Degrees @ 9" Vacuum

#1103231

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 600 RPM

Full Advance: 10 Degrees @ 2,200 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 3-1/2"

Maximum Vacuum Advance: 10 Degrees @ 12" Vacuum

#1103239

No Information is Available

#1103244

No Information is Available

#1103252

No Information is Available

#1110538

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 425 RPM

Intermediate Advance: 4 Degrees @ 600 RPM

Full Advance: 8-1/2 Degrees @ 1,000 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 5"

Maximum Vacuum Advance: 12 Degrees @ 10" Vacuum

#1110539

Centrifugal Advance Data:

Advance Starts: 0 Degrees @ 425 RPM

Intermediate Advance: 4 Degrees @ 600 RPM

Full Advance: 8-1/2 Degrees @ 1,000 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 5"

Maximum Vacuum Advance: 12 Degrees @ 10" Vacuum

#1110677

Centrifugal Advance Data:

Advance Starts: 0 to 2.2 Degrees @ 760 RPM

Intermediate Advance: 8.9 to 11 Degrees @ 1,800 RPM

Full Advance: 11 Degrees @ 2,500 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 6"

Maximum Vacuum Advance: 12-3/4 Degrees @ 20" Vacuum

#1110686

Centrifugal Advance Data:

Advance Starts: 0 to 5.5 Degrees @ 890 RPM

Intermediate Advance: 3.15 to 11 Degrees @ 1,800 RPM

Intermediate Advance: 8.8 to 11 Degrees @ 1,800 RPM

Full Advance: 11 Degrees @ 2,500 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 6"

Maximum Vacuum Advance: 4-3/4 Degrees @ 20" Vacuum

Starting Motor Data:

140 Cu. In Engine: Standard Transmission:

Starter # 1108771

Brush Spring Tension: 35 Ounces

Free Speed Test: 50-75 Amperes, 9 Volts, @ 6,500-10,000 RPM

140 Cu. In Engine: Automatic Transmission:

Starter # 1108772

Brush Spring Tension: 35 Ounces

Free Speed Test: 50-75 Amperes, 9 Volts, @ 6,500-10,000 RPM

305 Cubic 8 Cylinder Engines:

Starter # 1108790

Brush Spring Tension: 35 Ounces

Free Speed Test: 50-80 Amperes, 9 Volts, @ 3,500-6,000 RPM

Carburetor Data:

Note: See 1977 General Motors Carburetors Database

1977 Chevrolet Paint Colors & Codes:

Code Color Name

11 Antique White

13 Silver

16 Medium Gray

19 Black

21 Light Blue

22 Light Blue Poly

29 Dark Blue

32 Light Lime

36 Firethorn

38 Dark Aqua

44 Medium Green

48 Dark Blue Green

50 Cream Gold

51 Bright Yellow

61 Light Buckskin

63 Buckskin

64 Bright Orange

69 Browh

72 Red

75 Light Red

78 Orange

85 Medium Blue

Popular Options:

Power Steering; Air Conditioning; AM Radio; AM-FM Radio; AM-FM Stereo Radio; Stereo Tape Player with AM Radio; Stereo Tape Player with AM-FM Stereo Radio; Rear Speaker; Windshield Antenna; Opera Windows; Wheel Opening Moldings; Door Edge Guards; DeLuxe Bumpers with Guards; Console; Leather Bucket Seats; Adjustable Driver's Seatback; Folding Rear Seat; Floor Mats; Aluminum Wheels DeLuxe Wheel Covers; Conventional Spare Tire; Vinyl Top; Automatic Transmission, 8 Cylinder Engine and Much More.

1977 Chevrolet Monza Historical Data:

The 1977 Chevrolet model year was introduced on September 30, 1976.

Total 1977 Chevrolet Monza Production was 73,348.

Promotional Model Cars:

Plastic: Monza 2 + 2 Coupe.