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Second Chance Garage

For the Car Restoration Enthusiast

Second Chance Garage

Second Chance Garage

For the Car Restoration Enthusiast

Second Chance Garage

For the Car Restoration Enthusiast

Second Chance Garage
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ENGINE SPECS

1955 Oldsmobile 324 V8 Engine Specs

GENERAL SPECIFICATIONS

Model Designation: 88, Super 88, Ninety-Eight

Wheel base: 88: 122; Super 88: 122; 98: 126

Valve Location: In Head

Bore and Stroke: 3-7/8 x 3-7/16

Piston displacement, Cubic Inches: 324.31

Compression ratio: 8.50

Maximum Brake Horsepower: 88: 185 @ 4000; Super 88; 98: 202 @ 4000 RPM

Maximum Torque Lbs.Ft. @ RPM: 332 @ 2400 RPM; 98: 340 @ 2400 RPM

Normal Oil Pressure Pounds: 40

TUNE UP SPECIFICATIONS (all models)

Spark Plug Make: AC 44-5

Spark Plug Gap, Inch: .030

Firing Order: 18736542 (left bank: 1-3-5-6; right bank: 2-4-6-8)

Timing Mark: slot, location: pulley

Engine Idle Speed, RPM: Standard transmission: 425; w/automatic 400 (in drive)

Cylinder Head Torque Lbs.Ft.: 60-70

Compression Pressure & Cranking Speed: 120

Voltage & Polarity: 12 volts, negative ground

PISTON AND RING SPECIFICATIONS

Fitting Pistons with Scale: Pistons removed from above. Shim thickness: .0015

Pounds on a Pull Scale: 10 to 18

Ring End Gap: In tapered bores, fit rings in tightest portion of ring travel
Compression: Sealed Power: .008; Perfect Circle: .010
Oil: Sealed Power: .008; Perfect Circle: .010

Clearance in Groove: Compression: .001-003; Oil: .001-.0025

Wristpin Diameter, Inch: .9803-.9807

VALVE SPECIFICATIONS

Operating Clearance: Intake: 0Exhaust: 0

Valve Seat Angle, degrees: 45

Valve Timing: (BTDC = before top dead center; ATDC = after top dead center)
Intake opens: 13-1/2 BTDC
Exhaust Closes: 14-1/2 ATDC

Valve Spring Pressure Pounds at Inches Length: Inner Spring: 90 @ 1-13/16

Valve Stem Clearance: Intake: .002-.004;Exhaust: .0025-.0045

Clearance for Timing Intake: 0

ENGINE BEARING SPECIFICATIONS

Connecting Rod Bearings: Journal Diameter, Inches: 2.488-2.2498
Bearing Clearance, Inch: .0009-.0029
Rod End Play, Inch: .002-.011
Rod Bolt Tension: Lbs.Ft.: 45-50

Main Bearings: Journal Diameter, Inches: Nos. 1, 2, 3, 4: 2.498; No. 5: 2.623-2.624
Bearing clearance: Front: .0005-.002; Rear: .002-.0036; All Others: .0005-.003
Shaft End Play: .004-.008(Thrust is taken at rear bearing)
Main Bolt Tension: Lbs.Ft.: Rear: 140 ft/lbs; all others: 100 ft.lbs

CAPACITY DATA

Cooling System: Without heater: 20-1/2 quarts
Without heater: 21-1/2 quarts

Fuel Tank: 20 gallons

Engine Oil: 5 quarts

Transmission: w/out overdrive: 2-1/2 pints; Automatic: 11 quarts

Rear Axle: 5 pints

DELCO-REMY DISTRIBUTOR SPECIFICATIONS

Distributor part number: 1110850 (distributor rotates counter-clockwise)

Cam Angle, degrees: 26-33

Breaker Point opening, Inch: .016

Condenser Capacity: .18-.23 Mfds.

Breaker Arm Spring Tension: 19-23 Oz.

Centrifugal Advance: (degrees at RPM of distributor)
Advance starts: 2 @ 400 RPM
Full Advance: 12 @ 1450 RPM
Inches of Vacuum to Start Plunger Movement: 4-1/2 - 6-1/2
Inches of Vacuum for Full Plunger Movement: 15-16
Maximum Vacuum Advance Dist., Degrees: 10

DELCO-REMY GENERATOR SPECIFICATIONS

Generator Number: 1102003 (generator rotates clockwise, 6 volts, Negative Ground)

Generator output: 30 amps @ 2150 RPM

Brush Spring Tension: 28 oz.

Field Current at 12 Volts: 1.48-1.62

DELCO-REMY REGULATOR SPECIFICATIONS

Regulator Number: 1118750, 1118826, 1119001

Cutout Relay: Voltage to close points: 12.8
Reverse current to open points: 0-4
Armature Air Gap: .020

Voltage Regulator Setting: 14.5 volts

Current and Voltage Armature Air Gap: .075 inches

Current Regulator Setting: 30 amps

DELCO-REMY STARTING MOTOR SPECIFICATIONS

Part number: 1107623 (rotates clockwise)

Bush Spring Tension, Ounces: 30-40

No Load Test: 95 amps, 10.1 volts @ 3500 RPM

Torque Test: 460 Amps, 5.2 volts, Torque, Lbs.Ft.: 11

WHEEL ALIGNMENT SPECIFICATIONS

Caster, Degrees
Limits: -3/4 to 0
Desired: - 3/8

Camber, Degrees
Limits: -3/4 to +3/4
Desired: 0

Toe-In, Inches: 1/16 to 1/8

Toe-Out on Turns, Degrees: (If toe-out is incorrect, when other adjustments are correct, look for bent steering arms.)
Outer wheel: 20
Inner Wheel: 22-1/2 to 23-1/2

Kingpin Angle, or Steering Axis Degrees: (If king pin or spindle support angle are incorrect, but camber is correct, look for bent suspension arms or steering knuckle support) 6