1956 PONTIAC
Model Designations:
Pontiac Chieftain, Series 27, 8 Cylinder
Star Chief, Series 28, 8 Cylinder
Pontiac Chieftain, Series 27, 8 Cylinder, Body Styles:
Special, 860:
4 Door Sedan, 6 Passenger, Body Style # 2719
Base Price: $2,294; Shipping Weight: 3,617 Pounds
Total Production: 41,987
4 Door Catalina Hardtop, 6 Passenger, Body Style # 2739
Base Price: $2,439; Shipping Weight: 3,682 Pounds
Total Production: 35,201
2 Door Sedan, 6 Passenger, Body Style # 2711
Base Price: $2,236; Shipping Weight: 3,557 Pounds
Total Production: 41,908
2 Door Catalina Hardtop, 6 Passenger, Body Style # 2737
Base Price: $2,366; Shipping Weight: 3,617 Pounds
Total Production: 46,335
4 Door Station Wagon, 6 Passenger, Body Style #2562FC
Base Price: $2,648; Shipping Weight: 3,812 Pounds
Total Production: 12,702
2 Door Station Wagon, 6 Passenger, Body Style #2563
Base Price: $2,564; Shipping Weight: 3,717 Pounds
Total Production: 6,099
DeLuxe 870:
4 Door Sedan, 6 Passenger, Body Style # 2719D
Base Price: $2,409; Shipping Weight: 3,617 Pounds
Total Production: 22,082
4 Door Catalina Hardtop, 6 Passenger, Body Style # 2739D
Base Price: $2,530; Shipping Weight: 3,682 Pounds
Total Production: 25,372
2 Door Hardtop Catalina Coupe, 6 Passenger, Body Style # 2737D
Base Price: $2,476; Shipping Weight: 3,617 Pounds
Total Production: 24,744
4 Door Station Wagon, 6 Passenger, Body Style #2763DF
Base Price: $2,744; Shipping Weight: 3,762 Pounds
Total Production: 21,674
Pontiac Chieftain Star Chief Eight, Series 28, 8 Cylinder, Body Styles:
Star Chief DeLuxe:
4 Door Sedan, 6 Passenger, Body Style # 2819D
Base Price: $2,523; Shipping Weight: 3,697 Pounds
Total Production: 18,346
2 Door Convertible, 6 Passenger, Body Style # 2867DTX
Base Price: $2,853; Shipping Weight: 3,917 Pounds
Total Production: 13,510
Star Chief Custom:
4 Door Catalina Hardtop, 6 Passenger, Body Style # 2839SD
Base Price: $2,731; Shipping Weight: 3,767 Pounds
Total Production: 48,035
2 Door Catalina Hardtop, 6 Passenger, Body Style # 2837SD
Base Price: $2,661; Shipping Weight: 3,687 Pounds
Total Production: 43,392
2 Door Safari Station Wagon, 6 Passenger, Body Style #2764DF*
Base Price: $3,124; Shipping Weight: 3,762 Pounds
Total Production: 4,042
* Built on 122" Wheelbase.
Chassis:
Wheelbase:
Chieftain: 122"
Star Chief: 124"
Safari Wagon: 122"
Tire Size:
Passenger Cars: 7.10 X 15"
Station Wagons: 7.60 X 15"
Rear Axle Ratios:
Manual Transmission: 3.64:1
Automatic Transmission: 3.23:1
General Engine Specifications:
Pontiac, 8 Cylinder, Manual Transmission, 2 Barrel Carburetor (Regular Fuel):
Engine Type: V-Type 8 Cylinder, Overhead Valve
Bore & Stroke: 3-15/16" X 3-1/4"
Engine Displacement: 316.6 Cu. In.
Compresssion Ratio: 7.90 to 1
Taxable Horsepower: 49.61
Horsepower: 192 @ 4,400 RPM
Torque: 297 Ft Lbs @ 2,400 RPM
Normal Oil Pressure: 35-45 PSI
Pontiac, 8 Cylinder, Manual Transmission, 2 Barrel Carburetor:
Engine Type: V-Type 8 Cylinder, Overhead Valve
Bore & Stroke: 3-15/16" X 3-1/4"
Engine Displacement: 316.6 Cu. In.
Compresssion Ratio: 8.90 to 1
Taxable Horsepower: 49.61
Horsepower: 192 @ 4,400 RPM
Torque: 297 Ft Lbs @ 2,400 RPM
Normal Oil Pressure: 35-45 PSI
Pontiac, 8 Cylinder, Manual Transmission, 4 Barrel Carburetor:
Engine Type: V-Type 8 Cylinder, Overhead Valve
Bore & Stroke: 3-15/16" X 3-1/4"
Engine Displacement: 316.6 Cu. In.
Compresssion Ratio: 8.90 to 1
Taxable Horsepower: 49.61
Horsepower: 216 @ 4,800 RPM
Torque: 315 Ft Lbs @ 2,800 RPM
Normal Oil Pressure: 35-45 PSI
Pontiac, 8 Cylinder, Automatic Transmission, 4 Barrel Carburetor:
Engine Type: V-Type 8 Cylinder, Overhead Valve
Bore & Stroke: 3-15/16" X 3-1/4"
Engine Displacement: 316.6 Cu. In.
Compresssion Ratio: 8.90 to 1
Taxable Horsepower: 49.61
Horsepower: 227 @ 4,800 RPM
Torque: 312 Ft Lbs @ 3,000 RPM
Normal Oil Pressure: 35-45 PSI
Pontiac, 8 Cylinder, Automatic Transmission, 2 Barrel Carburetor:
Engine Type: V-Type 8 Cylinder, Overhead Valve
Bore & Stroke: 3-15/16" X 3-1/4"
Engine Displacement: 316.6 Cu. In.
Compresssion Ratio: 8.90 to 1
Taxable Horsepower: 49.61
Horsepower: 205 @ 4,600 RPM
Torque: 294 Ft Lbs @ 2,600 RPM
Normal Oil Pressure: 35-45 PSI
Pontiac, 8 Cylinder, 2 - 4 Barrel Carburetors:
Engine Type: V-Type 8 Cylinder, Overhead Valve
Bore & Stroke: 3-15/16" X 3-1/4"
Engine Displacement: 316.6 Cu. In.
Compresssion Ratio: 10.00 to 1
Taxable Horsepower: 49.61
Horsepower: 285 @ 5,100 RPM
Torque: 330 Ft Lbs @ 2,600 RPM
Normal Oil Pressure: 35-45 PSI
Capacities:
Cooling System:
Without Heater: 22-3/4 Quarts
With Heater: 24-1/2 Quarts
Fuel Tank: 20 Gallons
Engine Oil Refill: 5 Quarts*
Manual Transmission: 2-1/2 Pints
Hydra-Matic Transmission: 9-1/2 Quarts
Rear Axle: 3-1/4 Pints
* Add 1 Quart for Oil Filter
Tune Up Specifications:
All Except with 2 - 4 Barrel Carburetors:
Ground Polarity: Negative
Voltage: 12 Volts
Spark Plug Type: AC 46
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: Vibration Damper, First Line to come under pointer with engine cranking.
Engine Idle Speed: 450-475 RPM
Cylinder Head Torque: 95 Ft Lbs
Compression Pressure @ Cranking Speed:
Standard Head: 120 PSI (Minimum)
High Compression Head: 145 PSI (Minimum)
With 2 - 4 Barrel Carburetors:
Ground Polarity: Negative
Voltage: 12 Volts
Spark Plug Type: AC 44
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: 10 Degrees BTDC on Vibration Damper
Engine Idle Speed: 650 RPM
Cylinder Head Torque: 95 Ft Lbs
Compression Pressure @ Cranking Speed:
Standard Head: 120 PSI (Minimum)
High Compression Head: 145 PSI (Minimum)
Valve Specifications:
Manual Transmission:
Operating Clearance, Running Hot:
Intake: Zero
Exhaust: Zero
Valve Seat Angle: Intake 30 degrees; Exhaust 45 degrees
Valve Timing:
Intake Opens 22 Degrees Before Top Dead Center
Exhaust Closes 27 degrees After Top Dead Center
Valve Spring Pressure:
Inner Spring: 57 Lbs @ 1-3/32"
Outer Spring: 102 Lbs @ 1.20"
Valve Lift, Zero Lash:
Intake: .373"
Exhaust: .373"
Valve Stem Clearance:
Intake .0015"
Exhaust .0015"
Valve Stem Diameter:
Intake: .340"
Exhaust: .340"
Automatic Transmission:
Operating Clearance, Running Hot:
Intake: Zero
Exhaust: Zero
Valve Seat Angle: Intake 30 degrees; Exhaust 45 degrees
Valve Timing:
Intake Opens 27 Degrees Before Top Dead Center
Exhaust Closes 31 degrees After Top Dead Center
Valve Spring Pressure:
Inner Spring: 57 Lbs @ 1-3/32"
Outer Spring: 102 Lbs @ 1.20"
Valve Lift, Zero Lash:
Intake: .403"
Exhaust: .403"
Valve Stem Clearance:
Intake .0015"
Exhaust .0015"
Valve Stem Diameter:
Intake: .340"
Exhaust: .340"
With 2 - 4 Barrel Carburetors:
Operating Clearance, Running Hot:
Intake: Zero
Exhaust: Zero
Valve Seat Angle: Intake 30 degrees; Exhaust 45 degrees
Valve Timing:
Intake Opens 34 Degrees Before Top Dead Center
Exhaust Closes 37 degrees After Top Dead Center
Valve Spring Pressure:
Inner Spring: 95 Lbs @ 1.08"
Outer Spring: 128 Lbs @ 1.13"
Valve Lift, Zero Lash:
Intake: .411"
Exhaust: .411"
Valve Stem Clearance:
Intake .0015"
Exhaust .0015"
Valve Stem Diameter:
Intake: .340"
Exhaust: .340"
Pistons, Rings, Wrist Pin, Crankshaft, & Bearing Data:
Piston Removal: From Above
Fitting Pistons:
Shim Thickness: .0015"
Pounds Pull on Scale: 8 to 15
Ring End Gap:
Compression Ring:
Top Ring: .010"
Second Ring: .008"
Oil Ring: .015"
Wristpin Diameter: .9805"
Rod Bearings:
Shaft Diameter: 2.2488"-2.2498"
Rod Bearing Clearance: .001"-.003"
Rod End Play: .006"-.011"
Rod Bolt Torque: 45 Ft. Lbs.
Main Bearings:
Shaft Diameter: 2.498"-2.499"
Main Bearing Clearance:
Front: .0005"-.0025"
Rear: .0008"-.0033:
Others: .0005"-.003"
Crankshaft End Play: .003"-.008"
Thrust on #4 Bearing
Main Bolt Torque: 95 Ft. Lbs; (120 Ft. Lbs on Rear Cap)
Delco-Remy Distributor Specifications:
Distributor #1110862
Rotation: Counter-Clockwise
Cam Angle: 26-33 Degrees
Breaker Point Opening: .016"
Condenser Capacity: .18-.23 Mfds.
Breaker Arm Spring Tension: 19-23 Ounces
Centrifugal Advance Data:
Advance Starts: 1 Degree @ 525 RPM
Full Advance: 10 Degrees @ 1,800 RPM
Vacuum Advance Data:
Inches of Vacuum to Start Plunger Movement: 4" to 6"
Inches of Vacuum for Full Plunger Travel: 12-1/2" to 13-1/2"
Maximum Vacuum Advance: 8 Degrees
Delco-Remy Generator & Regulator Specifications:
Generator #1100304
Generator Output: 25 Amperes @ 2,780 RPM
Brush Spring Tension: 28 Ounces
Direction of Rotation: Clockwise
Field Current @ 12 Volts: 1.5-1.62 Amperes
Regulator #1119000
Cutout Relay:
Voltage to Close Points: 12.6
Armature Air Gap: .020"
Voltage Regulator Setting: 14.3 Volts
Current Regulator Setting: 25 Amperes
Current & Voltage Armature Air Gap: .075"
Ground Polarity: Negative
Generator #1102052
Generator Output: 35 Amperes @ 2,380 RPM
Brush Spring Tension: 28 Ounces
Direction of Rotation: Clockwise
Field Current @ 12 Volts: 1.62-1.82 Amperes
Regulator #1119002
Cutout Relay:
Voltage to Close Points: 12.6
Armature Air Gap: .020"
Voltage Regulator Setting: 14.3 Volts
Current Regulator Setting: 34 Amperes
Current & Voltage Armature Air Gap: .075"
Ground Polarity: Negative
Generator #1102054
Generator Output: 35 Amperes @ 2,380 RPM
Brush Spring Tension: 28 Ounces
Direction of Rotation: Clockwise
Field Current @ 12 Volts: 1.62-1.82 Amperes
Regulator #1119002
Cutout Relay:
Voltage to Close Points: 12.6
Armature Air Gap: .020"
Voltage Regulator Setting: 14.3 Volts
Current Regulator Setting: 34 Amperes
Current & Voltage Armature Air Gap: .075"
Ground Polarity: Negative
Delco-Remy Starting Motor Specifications:
Part #1107641
Rotation: Clockwise
Brush Spring Tension: 35 Ounces (Minimum)
No Load Test: 95 Amperes, 10.1 Volts, @ 3,500 RPM
Lock Test: 470 Amperes, 5.4 Volts, 10-1/2 Ft. Lbs. of Torque.
Rear Axle & Brake Specifications:
Ring Gear & Pinion Backlash: .003"-.012"
Drive Pinion Adjustment: Shim
Drive Pinion Bearing Adjustment: Spacer
Axle Shaft End Play: None
Wheel Cylinder Bore:
Front: 1-1/16"
Rear: 15/16"
Master Cylinder Bore: 1"
Wheel Alignment Specifications:
Caster: - 1 Degrees
Camber: + 1/2 Degrees
Toe In; 0 to 1/16"
Toe-Out on Turns:
Outer Wheel: 20 Degrees
Inner Wheel: 22-1/2 Degrees
Kingpin Angle: 1-1/3 Degrees @ 0 Degree Camber
Carter Carburetor Specifications:
Carburetor Model: WCFB
Part #2364S-A
Idle Screw Setting: 1-1/4 to 2-1/4 Turns
Float Level:
Primary: 3/16"
Secondary: 3/16"
Float Drop:
Primary: 11/16"
Secondary: 11/16"
Fast Idle Setting: .030"
Unloader Setting: 1/8"
Bowl Vapor Vent: 1/16"
Secondary Throttle Lever: .017"-.022"
Automatic Choke Setting: 1 Rich
Rochester Carburetor Specifications:
Model: 2GC
Part #7008695, 7008696, 7008907, 7008908
Float Level: 1-15/64"
Float Drop: 1-29/32"
Idle Screw Setting: 1-1/2 Turns Open
Choke Setting: Index
Pump Rod: 57/64"
Choke Rod: .061"
Choke Unloader: .163"
Model: 4GC
Part #7008900, 7008697
Float Level: 1-19/32"
Float Drop: 2-1/4"
Idle Screw Setting: 1-1/2 Turns Open
Choke Setting: Index
Pump Rod: 61/64"
Fast Idle: .024"
Choke Rod: .052"
Choke Unloader: .115"
Secondary Throttle Lockout: .015"
Secondary Throttle Contour Clearance: .015"
Idle Air Vent: .063"
Model: 4GC
Part #7009005, 7009006
Float Level: 1-19/32"
Float Drop: 2-1/4"
Idle Screw Setting: 1-1/2 Turns Open
Choke Setting: Index
Pump Rod: 61/64"
Fast Idle: .024"
Choke Rod: .052"
Choke Unloader: .115"
Secondary Throttle Lockout: .015"
Secondary Throttle Contour Clearance: .015"
Popular Options:
Power Steering, Power Brakes, Air Conditioning, Power Windows, Underseat Heter & Defroster, 7 Tube Radio, Rear Seat Speaker, Turn Signals, Autronic Eye Headlight Dimmer, Back-Up Lights, Non-Glare Mirror, Fender Skirts, Exhaust Deflector, Fuel Door Guard, Door Edge Guards, Door Handle Guards, Padded Dash, Di-Noc Wood Grain Trim for Station Wagons, DeLuxe Steering Wheel for Special, Illuminated Hood Ornament, Seat Belts, Outside Suln Visor, Traffic Light Viewer, Windshield Washers, Outside Rear View Mirror, Vanity Visor Mirror, Remote Control Outside Mirror, Glove Compartment Light, Trunk Light, Underhood Light, Ash Tray Light; Courtesy Lights, Parking Brake Signal, Grille Guard, Wing Tip Bumper Guards, Tinted Glass, Fog Lights, Power Antenna, Spot Light, Chrome Wheel Trim Rings, Grille Bug Screen, Saftey Jack, Oil Bath Air Cleaner, Hydra-Matic Transmission, Hydra-Matic Cylinder Head for Manual Transmission.
1956 Pontiac Historical Data:
Introduction of the 1956 Pontiac line was on October 21, 1955.
Total 1956 Pontiac Production was 405,730.
.
1956 Pontiac Colors & Codes:
Code Color
6A Raven Black
6B Chesapeake Blue
6C Olympic Blue
6D Amethyst
6E Phantom Gray
6F Grenada Gold
6G Bolero Red
6H Hialeah Green
6J Vista Blue
6K Nimbus Gray
6L Glendale Green
6M Terragon Green
6N Sandalwood Tan
6P Sun Beige
6Q Catalina Blue
6R Camellia
6W Sun Beige
Promotional Model Cars Available:
Plastic: Star Chief 4 Door Hardtop
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