1958 OLDSMOBILE

Model Designations:

Oldsmobile Dynamic 88, 8 Cylinder, Model 88

Oldsmobile Super 88, 8 Cylinder, Model S-88

Oldsmobile 98, 8 Cylinder, Model 98

Oldsmobile Dynamic 88,Body Styles:

2 Door Sedan, 5 Passenger, Body # 58-3611

Base Price: $2,772; Shipping Weight: 4,102

Production Total: 11,833

2 Door Hardtop Holiday Coupe, 5 Passenger, Body # 58-3637

Base Price: $2,893; Shipping Weight: 4,112

Production Total: 35,036

4 Door Sedan, 5 Passenger, Body # 58-3669

Base Price: $2,837; Shipping Weight: 4,161 Pounds

Production Total: 60,429

4 Door Hardtop Holiday Sedan, 5 Passenger, Body # 58-3639

Base Price: $2,971; Shipping Weight: 4,185 Pounds

Production Total: 28,241

2 Door Convertible, 6 Passenger, Body # 58-3667TX

Base Price: $3,221; Shipping Weight: 4,198 Pounds

Production Total: 4,456

4 Door Station Wagon, 6 Passenger, Body # 58-3693

Base Price: $3,284; Shipping Weight: 4,441 Pounds

Production Total: 3,249

4 Door Hardtop Station Wagon, 6 Passenger, Body # 58-3665

Base Price: $3,395; Shipping Weight: 4,417 Pounds

Production Total: 3,323

Oldsmobile Super 88, Body Styles:

2 Door Hardtop Holiday Coupe, 5 Passenger, Body # 58-3637D

Base Price: $3,262; Shipping Weight: 4,153 Pounds

Production Total: 18,653

2 Door Convertible, 5 Passenger, Body # 58-3667DTX

Base Price: $3,529; Shipping Weight: 4,217 Pounds

Production Total: 3,799

4 Door Hardtop Holiday Sedan, 5 Passenger, Body # 58-3639SD

Base Price: $3,339; Shipping Weight: 4,223 Pounds

Production Total: 39,162

4 Door Sedan, 5 Passenger, Body # 58-3669D

Base Price: $3,112; Shipping Weight: 4,185 Pounds

Production Total: 27,521

4 Door Station Wagon, 6 Passenger, Body # 58-3665

Base Price: $3,623; Shipping Weight: 4,471 Pounds

Production Total: 5,175

Oldsmobile 98, Body Styles:

2 Door Hardtop Holiday Coupe, 5 Passenger, Body # 58-3037SDX

Base Price: $4,020; Shipping Weight: 4,454 Pounds

Production Total: 11,012

4 Door Sedan, 5 Passenger, Body # 58-3069D

Base Price: $3,824; Shipping Weight: 4,474

Production Total: 20,418

4 Door Hardtop Holiday Sedan, 5 Passenger, Body # 58-3095

Base Price: $4,096; Shipping Weight: 4,559

Production Total: 32,099

2 Door Convertible, 5 Passenger, Body # 58-3067DX

Base Price: $4,200; Shipping Weight: 4,504 Pounds

Production Total: 5,605

Chassis:

Wheelbase:

Dynamic 88 & Super Eighty-Eight: 122.5"

Ninety-Eight: 126.5"

Tire Sizes:

Dynamic 88: 8.50 X 14"

Super 88: 8.50 X 14"

Starfire 98: 8.50 X 14"

Rear Axle Ratios:

Information Not Available

General Engine Specifications:

Oldsmobile, Dynamic 88:

Engine Type: Overhead Valve V-8

Bore & Stroke: 4" X 3-11/16"

Engine Displacement: 371 Cu. In.

Compresssion Ratio: 10.00 to 1

Taxable Horsepower: 51.20

Horsepower: 265 @ 4,400 RPM

Torque: 390 Ft. Lbs. @ 2,400 RPM

Normal Oil Pressure: 35-45 PSI

Oldsmobile, Super 88 & 98:

Engine Type: Overhead Valve V-8

Bore & Stroke: 4" X 3-11/16"

Engine Displacement: 371 Cu. In.

Compresssion Ratio: 10.00 to 1

Taxable Horsepower: 51.20

Horsepower: 305 @ 4,600 RPM

Torque: 410 Ft. Lbs. @ 2,800 RPM

Normal Oil Pressure: 35-45 PSI

Oldsmobile, J-2 Option With 3 - 2 Barrel Carburetors:

Engine Type: Overhead Valve V-8

Bore & Stroke: 4" X 3-11/16"

Engine Displacement: 371 Cu. In.

Compresssion Ratio: 10.00 to 1

Taxable Horsepower: 51.20

Horsepower: 312 @ N/A RPM

Torque: N/A

Normal Oil Pressure: 35-45 PSI

Capacities:

All Series:

Cooling System:

Without Heater: 20 Quarts

With Heater: 21 Quarts

Radiator Cap Pressure: 13 PSI; 15 PSI with Air Conditioning

Fuel Tank: 20 Gallons

Engine Oil Refill: 4 Quarts*

Manual Transmission: 2-1/2 Pints

Hydra-Matic Transmission: 11 Quarts

Rear Axle: 5-1/4 Pints

* Add 1 Quart for Oil Filter

Tune Up Specifications:

All Series:

Ground Polarity: Negative

Voltage: 12 Volts

Spark Plug Type: AC 44

Spark Plug: .030"

Point Gap: Turn Adjusting Screw clockwise until engine misfires, then back screw out 1/2 turn

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

Ignition Timing: Slot on Damper, With 3 Slots, Use Center Slot

Engine Idle Speed: 460 RPM (In Drive for Automatic Transmission)

Cylinder Head Torque: 60-70 Ft Lbs

Compression Pressure @ Cranking Speed: 160 PSI (Minimum)

Valve Specifications:

All Series:

Running Clearance:

Intake Zero

Exhaust Zero

Valve Seat Angle: 45 Degrees

Valve Timing: Intake Opens 16 Degrees Before Top Dead Center

Exhaust Closes 20 degrees After Top Dead Center

Valve Spring Pressure: 227 Lbs @ 1.437 inches

Valve Lift, Zero Lash:

Intake: .435"

Exhaust: .437"

Valve Stem Clearance:

Intake .0017"-.0035"

Exhaust .0022"-.004"

Valve Stem Diameter:

Intake: .3417"-.3425"

Exhaust: .3930"-.3938"

Pistons, Rings, Wristpins, Crankshaft & Bearings Data:

All Series:

Piston Removal: From Above

Fitting Pistons:

Shim Thickness: .0015"

Pounds Pull on Scale: 1 to 6

Ring End Gap:

Compression Ring: .013"

Oil Ring: .015"

Wristpin Diameter: .9805"

Rod Bearings:

Shaft Diameter: 2.249"-2.250"

Rod Bearing Clearance: .001"-.003"

Rod End Play: .002"-.011"

Rod Bolt Torque: 45-50 Ft. Lbs.

Main Bearings:

Shaft Diameter: 2.748"-2.749"

Main Bearing Clearance:

Front: .0005"-.002"

Rear: .002"-.0035"

Others: .0005"-.003"

Crankshaft End Play: .004"-.008"

Thrust on Rear Bearing

Main Bolt Torque:

Rear: 140 Ft. Lbs

Others: 100 Ft. Lbs

Delco-Remy Distributor Specifications:

All Series:

Distributor #1110929

Rotation: Counter-Clockwise

Cam Angle: 30 Degrees

Breaker Point Opening:

Turn Adjusting Screw clockwise until engine misfires, then back screw out 1/2 turn

Condenser Capacity: .18 -.23 Mfds.

Breaker Arm Spring Tension: 19-23 Ounces

Centrifugal Advance Data:

Advance Starts: 1 Degree @ 400 RPM

Full Advance: 12 Degrees @ 2,200 RPM

Vacuum Advance Data:

Inches of Vacuum to Start Plunger Movement: 8" to 10"

Inches of Vacuum for Full Plunger Travel: 13" to 16"

Maximum Vacuum Advance: 12 Degrees

Delco-Remy Generator & Regulator Specifications:

Generator #1102092

Generator Output: 35 Amperes @ 2,520 RPM

Brush Spring Tension: 28 Ounces

Direction of Rotation: Clockwise

Field Current @ 12 Volts: 1.62 to 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: 35 Amperes

Current & Voltage Armature Air Gap: .075"

Ground Polarity: Negative

Generator #1102093

Generator Output: 45 Amperes @ 2,600 RPM

Brush Spring Tension: 28 Ounces

Direction of Rotation: Clockwise

Field Current @ 12 Volts: 2.66 to 2.86 Amperes

Regulator #1119600

Cutout Relay:

Voltage to Close Points: 12.4

Armature Air Gap: .020"

Voltage Regulator Setting: 14.2 Volts (Lower Contact Setting .1 to .3 Volt Lower)

Current Regulator Setting: 41 Amperes

Current & Voltage Armature Air Gap:

Upper: .016"

Lower: .075"

Ground Polarity: Negative

Delco-Remy Starting Motor Specifications:

Part #1107665

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,.

Rear Axle & Brake Specifications:

Ring Gear & Pinion Backlash: .004"-.008"

Drive Pinion Adjustment: Shims

Drive Pinion Bearing Adjustment: Spacer

Wheel Cylinder Bore:

Front: 1-3/32"

Rear: 31/32"

Master Cylinder Bore: 1"

Wheel Alignment Specifications:

All Series:

Caster: - 1/2 Degrees

Camber: + 1/4 Degrees

Toe In: 0" to 1/8"

Toe-Out on Turns:

Outer Wheel: 20 Degrees

Inner Wheel: 23 Degrees

Kingpin Angle: 7 Degrees @ 0 Camber

Rochester 2G Carburetor Specifications:

Carburetor #7011714, 7011712

Float Level: 1-22/64"

Float Drop: 1-29/32"

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

Choke Setting: None

Pump Rod: 15/16"

Rochester 4GC Carburetor Specifications:

Carburetor #7012400, 7012401, 7015814

Float Level:

Primary: .376"

Secondary: 1-3/8"

Float Drop:

Primary: 1-1/2"

Secondary: 1-5/16"

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

Choke Setting: Index

Pump Rod: 1-3/64"

Fast Idle Setting: .024"

Choke Rod: .052"

Choke Unloader: .115"

Secondary Throttle Lockout: .015"

Secondary Throttle Coutour Clearance: .030"

Idle Air Vent: 29/32"

Rochester 2GC Carburetor Specifications:

Carburetor #7011713

Float Level: 1-25/64"

Float Drop: 1-29/32"

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

Choke Setting: 1 Lean

Pump Rod: 15/16"

Fast Idle: .024"

Choke Rod: .040"

Choke Unloader: .140"

Secondary Throttle Lockout: .030"

Secondary Throttle Contour Clearance: .015"

Idle Air Vent: 13/16"

Carburetor #7012450

Float Level: 1-25/64"

Float Drop: 1-29/32"

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

Choke Setting: 1 Lean

Pump Rod: 15/16"

Choke Rod: .040"

Choke Unloader: .140"

Idle Air Vent: 13/16"

Carburetor #7015805

Float Level: 1-25/64"

Float Drop: 1-29/32"

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

Choke Setting: 1 Lean

Pump Rod: 15/16"

Choke Rod: .040"

Choke Unloader: .140"

Secondary Throttle Lockout: .030"

Secondary Throttle Contour Clearance: .015"

Idle Air Vent: 13/16"

1958 Oldsmobile Paint Colors:

Color

Onyx Black

Festival Red

Surf Green

Alegheny Green

Banif Blue

Marliln Blue

Pearl Gray

Sterling Gray

Charcoal

Alaskan White

Sandstone

Antumn Haze

Desert Glow

Canyon Glow

Heather

Mountain Haze

Victorian White

Champagne Mist

Rose Mist

Turquoise Mist

Jade Mist

Tropical Mist

Popular Options:

DeLuxe Radio, Super DeLuxe Signal Seeking Radio, Trans-Portable Radio, Rear Seat Speaker, Power Antenna, Heater & Defroster, Air Conditioning, Power Steering, Power Brakes, Power Windows, Power Seat, Electric Clock, Windshield Washer, Autronic Eye Headlight Dimmer, Back Up Lights, Tinted Glass, Air Suspension, Jetaway Hydramatic, Heavy Duty Air Cleaner, J-2 Engine Option.

1958 Oldsmobile Historical Data:

Jetaway Hydramatic was standard equipment on 98 Series.

Total 1958 Oldsmobile Production was 296,375.

Promotional Model Cars:

Plastic: Oldsmobile 98 4 Door Hardtop

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