1958 PONTIAC

1958 PONTIAC

Model Designations:

Pontiac Chieftain, Series 25 & 27, 8 Cylinder

Pontiac Super Chief, Series 28, 8 Cylinder

Pontiac Star Chief, Series 27 & 28, 8 Cylinder

Pontiac Bonneville, Seires 25, 8 Cylinder

Pontiac Chieftain, Series 27, 8 Cylinder, Body Styles:

4 Door Sedan, 6 Passenger, Body Style # 2749

Base Price: $2,638; Shipping Weight: 3,815 Pounds

Total Production: 44,999

4 Door Catalina Hardtop, 6 Passenger, Body Style # 2739

Base Price: $2,792; Shipping Weight: 3,900 Pounds

Total Production: 17,946

2 Door Sedan, 6 Passenger, Body Style # 2741

Base Price: $2,573; Shipping Weight: 3,755 Pounds

Total Production: 17,394

2 Door Catalina Hardtop, 6 Passenger, Body Style # 2731

Base Price: $2,707; Shipping Weight: 3,765 Pounds

Total Production: 26,003

2 Door Safari Station Wagon, 6 Passenger, Body Style #2793

Base Price: $3,019; Shipping Weight: 4,140 Pounds

Total Production: 9,701

2 Door Safari Station Wagon, 9 Passenger, Body Style #2794

Base Price: $3,008; Shipping Weight: 4,185 Pounds

Total Production: 5,417

Pontiac Chieftain, Series 25, 8 Cylinder, Body Styles:

2 Door Convertible, 5 Passenger, Body Style #2567

Base Price: $3,019; Shipping Weight: 3,965 Pounds

Total Production: 7,359

Pontiac Super Chief, Series 28, 8 Cylinder, Body Styles:

4 Door Sedan, 6 Passenger, Body Style # 2849D

Base Price: $2,834; Shipping Weight: 3,865 Pounds

Total Production: 12,006

4 Door Catalina Hardtop, 6 Passenger, Body Style # 2839D

Base Price: $2,961; Shipping Weight: 3,925 Pounds

Total Production: 7,886

2 Door Catalina Hardtop, 6 Passenger, Body Style # 2831D

Base Price: $2,880; Shipping Weight: 3,805 Pounds

Total Production: 7,236

Pontiac Star Chief Eight, Series 28, 8 Cylinder, Body Styles:

4 Door Custom Sedan, 6 Passenger, Body Style # 2849SD

Base Price: $3,071; Shipping Weight: 3,915 Pounds

Total Production: 10,547

4 Door Catalina Hardtop, 6 Passenger, Body Style # 2839SD

Base Price: $3,210; Shipping Weight: 3,965 Pounds

Total Production: 21,455

2 Door Catalina Hardtop, 6 Passenger, Body Style # 2831SD

Base Price: $3,122; Shipping Weight: 3,850 Pounds

Total Production: 13,888

Pontiac Star Chief Eight, Series 27, 8 Cylinder, Body Styles:

4 Door Custom Safari Staion Wagon, 6 Passenger, Body Style #2793SD

Base Price: $3,350; Shipping Weight; 4,180 Pounds

Total Production: 2,905

Pontiac Bonneville, Series 25, 8 Cylinder, Body Styles:

2 Door Bonneville Custom Sport Coupe, 5 Passenger, Body Style #2547SD

Base Price: $3,481; Shipping Weight: 3,825 Pounds

Total Production: 9,144

2 Door Bonneville Custom Convertible, 6 Passenger, Body Style #2567SD

Base Price: $3,586; Shipping Weight: 4,040 Pounds

Total Production: 3,096

Chassis:

Wheelbase:

Series 25 & 27: 122"

Series 28: 124"

Tire Size:

Passenger Cars: 8.00 X 14"

Station Wagons & Cars with Air Conditioning: 8.50 X 14"

Rear Axle Ratios:

Manual Transmission: 3.42:1

Optional: 3.64:1

Automatic Transmission: 3.23:1

Optional: 3.08:1

Dealer Installed Optional:

3.90:1 & 4.10:1

General Engine Specifications:

Pontiac, 8 Cylinder, Manual Transmission, 2 Barrel Carburetor:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 4-1/16" X 3-9/16"

Engine Displacement: 370 Cu. In.

Compresssion Ratio: 8.60 to 1

Taxable Horsepower: 52.81

Horsepower: 240 @ 4,500 RPM

Torque: 354 Ft Lbs @ 2,600 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: 4-1/16" X 3-9/16"

Engine Displacement: 370 Cu. In.

Compresssion Ratio: 8.60 to 1

Taxable Horsepower: 52.81

Horsepower: 255 @ 4,500 RPM

Torque: 360 Ft Lbs @ 2,600 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: 4-1/16" X 3-9/16"

Engine Displacement: 370 Cu. In.

Compresssion Ratio: 10.00 to 1

Taxable Horsepower: 52.81

Horsepower: 285 @ 4,600 RPM

Torque: 395 Ft Lbs @ 2,800 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: 4-1/16" X 3-9/16"

Engine Displacement: 370 Cu. In.

Compresssion Ratio: 10.00 to 1

Taxable Horsepower: 52.81

Horsepower: 270 @ 4,600 RPM

Torque: 388 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: 4-1/16" X 3-9/16"

Engine Displacement: 370 Cu. In.

Compresssion Ratio: 10.00 to 1

Taxable Horsepower: 52.81

Horsepower: 285 @ 4,600 RPM

Torque: 395 Ft Lbs @ 2,800 RPM

Normal Oil Pressure: 35-45 PSI

Pontiac, 8 Cylinder, 3 - 2 Barrel Carburetors:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 4-1/16" X 3-9/16"

Engine Displacement: 370 Cu. In.

Compresssion Ratio: 10.50 to 1

Taxable Horsepower: 52.81

Horsepower: 300 @ 4,600 RPM

Torque: 400 Ft Lbs @ 3,000 RPM

Normal Oil Pressure: 35-45 PSI

Pontiac, 8 Cylinder, 3 - Fuel Injection:

Engine Type: V-Type 8 Cylinder, Overhead Valve

Bore & Stroke: 4-1/16" X 3-9/16"

Engine Displacement: 370 Cu. In.

Compresssion Ratio: 10.50 to 1

Taxable Horsepower: 52.81

Horsepower: 310 @ 4,800 RPM

Torque: 400 Ft Lbs @ 3,400 RPM

Normal Oil Pressure: 35-45 PSI

Capacities:

Cooling System:

Without Heater: 21.2 Quarts

With Heater: 22.3 Quarts

Radiator Pressure Cap: 12 to 15 PSI

Fuel Tank: 20 Gallons

Engine Oil Refill: 5 Quarts*

Manual Transmission: 2 Pints

Hydra-Matic Transmission: 9 Quarts

Rear Axle: 5-1/2 Pints

* Add 1 Quart for Oil Filter

Tune Up Specifications:

All Models:

Ground Polarity: Negative

Voltage: 12 Volts

Spark Plug Type: AC 45

Spark Plug: Gap .035"

Point Gap: Turn adjusting screw in until engine begins to misfire, then turn screw out 1/2 turn.

Distributor Cam Angle: 30 Degrees

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

Ignition Timing: First Line to come under pointer with engine cranking, on Pulley.

Engine Idle Speed: 480-500 RPM

Cylinder Head Torque: 95 Ft Lbs

Compression Pressure @ Cranking Speed: 145 PSI

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: 26 Lbs @ 1.48"

Outer Spring: 60 Lbs @ 1.52"

Valve Lift, Zero Lash:

Intake: .370"

Exhaust: .370"

Valve Stem Clearance:

Intake .0016"-.0033"

Exhaust .0021"-.0038"

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 30 Degrees Before Top Dead Center

Exhaust Closes 25 degrees After Top Dead Center

Valve Spring Pressure:

Inner Spring: 26 Lbs @ 1.48"

Outer Spring: 60 Lbs @ 1.52"

Valve Lift, Zero Lash:

Intake: .400"

Exhaust: .400"

Valve Stem Clearance:

Intake .0016"-.0033

Exhaust .0021"-.0038

Valve Stem Diameter:

Intake: .340"

Exhaust: .340"

High Performance Engine:

Operating Clearance, Running Hot:

Intake: Zero

Exhaust: Zero

Valve Seat Angle: Intake 30 degrees; Exhaust 45 degrees

Valve Timing:

Intake Opens 30 Degrees Before Top Dead Center

Exhaust Closes 25 degrees After Top Dead Center

Valve Spring Pressure:

Inner Spring: 32 Lbs @ 1.48"

Outer Spring: 62 Lbs @ 1.52"

Valve Lift, Zero Lash:

Intake: .400"

Exhaust: .400"

Valve Stem Clearance:

Intake .0016"-.0033"

Exhaust .0021"-.0038"

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: .021"

Second Ring: .019"

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: 2.623"-2.624"

Main Bearing Clearance:

Front: .0025" (Maximum)

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:

Manual Transmission:

Distributor #1110924

Rotation: Counter-Clockwise

Cam Angle: 30 Degrees

Breaker Point Gap: Turn adjusting screw in until engine begins to misfire, then turn screw out 1/2 turn.

Condenser Capacity: .18-.23 Mfds.

Breaker Arm Spring Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 1 Degree @ 375 RPM

Full Advance: 14 Degrees @ 2,300 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 6" to 8"

Inches of Vacuum for Full Plunger Travel: 13" to 15"

Maximum Vacuum Advance: 10 Degrees

Automatic Transmission:

Distributor #1110913

Rotation: Counter-Clockwise

Cam Angle: 30 Degrees

Breaker Point Gap: Turn adjusting screw in until engine begins to misfire, then turn screw out 1/2 turn.

Condenser Capacity: .18-.23 Mfds.

Breaker Arm Spring Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 1-1/2 Degrees @ 450 RPM

Full Advance: 11 Degrees @ 2,300 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 6" to 8"

Inches of Vacuum for Full Plunger Travel: 13" to 15"

Maximum Vacuum Advance: 10 Degrees

Fuel Injection:

Distributor #1110925

Rotation: Counter-Clockwise

Cam Angle: 29 Degrees for each Breaker Point, or .016". Total angle, both breakers: 33-35 Degrees.

Breaker Point Gap: Turn adjusting screw in until engine begins to misfire, then turn screw out 1/2 turn.

Condenser Capacity: .18-.23 Mfds.

Breaker Arm Spring Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 1-1/2 Degrees @ 450 RPM

Full Advance: 11 Degrees @ 2,300 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 6" to 8"

Inches of Vacuum for Full Plunger Travel: 13" to 15"

Maximum Vacuum Advance: 10 Degrees

3 Carburetors:

Distributor #1110897

Rotation: Counter-Clockwise

Cam Angle: 29 Degrees for each Breaker Point, or .016". Total angle, both breakers: 33-35 Degrees.

Breaker Point Gap: Turn adjusting screw in until engine begins to misfire, then turn screw out 1/2 turn.

Condenser Capacity: .18-.23 Mfds.

Breaker Arm Spring Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 1-1/2 Degrees @ 525 RPM

Full Advance: 10 Degrees @ 1,800 RPM

Delco-Remy Generator & Regulator Specifications:

Generator #1102107

Generator Output: 30 Amperes @ 2,240 RPM

Brush Spring Tension: 28 Ounces

Direction of Rotation: Clockwise

Field Current @ 12 Volts: 1.69-1.79 Amperes

Regulator #1119001

Cutout Relay:

Voltage to Close Points: 12.6

Armature Air Gap: .020"

Voltage Regulator Setting: 14.3 Volts

Current Regulator Setting: 30 Amperes

Current & Voltage Armature Air Gap: .075"

Ground Polarity: Negative

Generator #1102104

Generator Output: 45 Amperes @ 2,600 RPM

Brush Spring Tension: 28 Ounces

Direction of Rotation: Clockwise

Field Current @ 12 Volts: 2.66-2.86 Amperes

Regulator #1119602

Cutout Relay:

Voltage to Close Points: 12.4

Armature Air Gap: .020"

Voltage Regulator Setting: 14.2 Volts; Lower setting .1 to .3 Volts Lower.

Current Regulator Setting: 40 Amperes

Current & Voltage Armature Air Gap:

Upper: .016"

Lower: .067"

Ground Polarity: Negative

Generator #1102108

Generator Output: 30 Amperes @ 2,240 RPM

Brush Spring Tension: 28 Ounces

Direction of Rotation: Clockwise

Field Current @ 12 Volts: 1.69-1.79 Amperes

Regulator #1119001

Cutout Relay:

Voltage to Close Points: 12.6

Armature Air Gap: .020"

Voltage Regulator Setting: 14.3 Volts

Current Regulator Setting: 30 Amperes

Current & Voltage Armature Air Gap: .075"

Ground Polarity: Negative

Generator #1102106, 1102105

Generator Output: 45 Amperes @ 2,600 RPM

Brush Spring Tension: 28 Ounces

Direction of Rotation: Clockwise

Field Current @ 12 Volts: 2.66-2.86 Amperes

Regulator #1119602

Cutout Relay:

Voltage to Close Points: 12.4

Armature Air Gap: .020"

Voltage Regulator Setting: 14.2 Volts; Lower setting .1 to .3 Volts Lower.

Current Regulator Setting: 40 Amperes

Current & Voltage Armature Air Gap:

Upper: .016"

Lower: .067"

Ground Polarity: Negative

Delco-Remy Starting Motor Specifications:

Manual Transmission:

Part #1107697

Rotation: Clockwise

Brush Spring Tension: 35 Ounces (Minimum)

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

Lock Test: 300-360 Amperes, 3.5 Volts,.

Automatic Transmission:

Part #1107700

Rotation: Clockwise

Brush Spring Tension: 35 Ounces (Minimum)

No Load Test: 80-120 Amperes, 10.6 Volts, @ 4,700-5,400 RPM

Lock Test: 290-370 Amperes, 2.0 Volts,.

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: 1-1/8"

Rear: 1"

Master Cylinder Bore: 1"

Wheel Alignment Specifications:

Caster: - 1/2 Degrees

Camber: + 1/2 Degrees

Toe In; 0 to 1/16"

Toe-Out on Turns:

Outer Wheel: 20 Degrees

Inner Wheel: 21-1/2 Degrees

Kingpin Angle: 4-1/2 Degrees @ 0 Degree Camber

Carter Carburetor Specifications:

Carburetor Model: AFB

Part #2740S

Float Level: 21/64"

Float Drop: 23/32"

Idle Screw Setting: 1/2 to 2 Turns

Pump Stroke: 33/64"

Choke Piston Lever: .045"

Fast Idle Throttle Valve Clearance: .030"

Unloader Setting: 1/8"

Secondary Throttle Lever: .010"-.030"

Automatic Choke Setting: 1 Rich

Carburetor Model: AFB

Part #2751S

Float Level: 9/32"

Float Drop: 23/32"

Idle Screw Setting: 1/2 to 2 Turns

Pump Stroke: 33/64"

Choke Piston Lever: .045"

Fast Idle Throttle Valve Clearance: .030"

Unloader Setting: 1/8"

Secondary Throttle Lever: .010"-.030"

Automatic Choke Setting: Index

Carburetor Model: AFB

Part #2767S

Float Level: 21/64"

Float Drop: 23/32"

Idle Screw Setting: 1/2 to 2 Turns

Pump Stroke: 33/64"

Choke Piston Lever: .045"

Fast Idle Throttle Valve Clearance: .026"

Unloader Setting: 1/8"

Secondary Throttle Lever: .010"-.030"

Automatic Choke Setting: 1 Rich

Rochester Carburetor Specifications:

Model: 2G

Part #7011707, 7011705

Float Level: 1-13/32"

Float Drop: 1-29/32"

Idle Screw Setting: 1-1/2 Turns Open

Choke Setting: None

Pump Rod: 15/16"

Model: 2GC

Part #7011706, 7011709

Float Level: 1-17/64"

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"

Secondary Throttle Lockout: .030"

Secondary Throttle Contour Clearance: .015"

Model: 2GC

Part #7011702, 7011703, 7011818

Float Level: 11/16"

Float Drop: 1-29/32"

Idle Screw Setting: 1-1/2 Turns Open

Choke Setting: Index

Pump Rod: 1-23/64"

Choke Rod: .061"

Choke Unloader: .163"

Idle Air Vent: 1-19/64

Model: 2GC

Part #7012702, 7012703, 7015862, 7015863

Float Level: 11/16"

Float Drop: 1-29/32"

Idle Screw Setting: 2 Turns Open

Choke Setting: Index

Pump Rod: 1-23/64"

Choke Rod: .061"

Choke Unloader: .163"

Idle Air Vent: 1-19/64

Model: 4GC

Part #7011700, 7011701

Float Level:

Primary Float: 9/32"

Secondary Float: 1-3/8"

Float Drop:

Primary Float: 1-1/2"

Secondary Float: 1-5/16"

Vacuum Assist: 1-3/64"

Idle Screw Setting: 2 Turns Open

Choke Setting: Index

Pump Rod: 1-5/16"

Fast Idle: .033"

Choke Rod: .062"

Choke Unloader: .115"

Secondary Throttle Lockout: .015"

Secondary Throttle Contour Clearance: .015"

Idle Air Vent: 55/64"

Popular Options:

DeLuxe Radio, DeLuxe Electromatic Radio, Power Antenna, Rear Seat Speaker, Heater & Defroster, Air Conditioning, Power Steering, Power Brakes, Power Windows, Power Seat, Dual Exhausts, White Wall Tires, Two-Tone Paint, Tinted Glass, Electric Clock, Windshield Washer, Electric Wipers, Padded Dash, Outside Rear View Mirror, DeLuxe Steering Wheel, Parking Brake Warning Light, Wheel Discs, Air Suspension, Oil Filter, Automatic Transmission, Various Engine Options.

1958 Pontiac Historical Data:

Introduction date of the 1958 Pontiac line is not available

Total 1958 Pontiac Production was 217,303.

1958 Pontiac Colors & Codes:

Code Color

AAA Persian Black

BBB Ascot Gray

DDD Squadron Blue

EEE Viking Blue

FFF Darby Green

GGG Seaforth Green

HHH Rangoon Red

JJJ Sunmist Yellow

KKK Reefshell Pink

LLL Tropicana Turquoise

MMM Lilac Mist

NNN Mallard Turquoise

PPP Marlin Turquoise

QQQ Deauvelle Blue

RRR Kashmir Blue

SSS Burma Green

TTT Calypso Green

UUU Redwood Copper

VVV Patina Ivory

WWW Starmist Silave

YYY Graystone White

ZZZ Jubilee Gold

57-V Cascade Blue

57-W Mayfair Yellow

57-X Iris

Promotional Model Cars Available:

Plastic: Bonneville 2 Door Hardtop & Bonneville Convertible