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ENGINE SPECS

1955 Buick 322 (188 hp) V8 Engine Specs

GENERAL SPECIFICATIONS

Model Designation: Super V8 - Series 50; Century V8 - Series 60
Wheel base: Super V8: 127; Century V8: 122
Valve Location: In head
Bore and Stroke: 4.000 x 3.2
Piston displacement, Cubic Inches: 322
Compression ratio: Super V8: 8.4; Century V8: 8.4
Maximum Brake Horsepower: Super V8: 188 @ 4800 RPM; Century V8: 188 @ 4600 RPM
Maximum Torque Lbs.Ft. @ RPM: Super V8: 256 @ 2400 RPM; Century V8: 250 @ 2400 RPM
Normal Oil Pressure Pounds: 35

TUNE UP SPECIFICATIONS

Spark Plug Make: AC 44-5
Spark Plug Gap, Inch: .032
Firing Order: 12784563 (front to rear: Left bank: 2-4-6-8; Right bank: 1-3-5-7)
Ignition Timing: Yellow timing mark aligns with "5" on timing indicator: Location: Vib. Damper
Engine Idle Speed, RPM:  450
Cylinder Head Torque Lbs.Ft.: 63-73
Compression Pressure & Cranking Speed: 155 Min.
Voltage & Polarity: 12 volts, negative ground

PISTON AND RING SPECIFICATIONS

Fitting Pistons with Scale:
Shim thickness .003
Pounds on Scale: 7 to 13
Ring End Gap:
Compression: .015
Oil: .025
Clearance in Groove: Compression: .002-004; Oil: .0035-.0095
Wristpin Diameter, Inch: .940

VALVE SPECIFICATIONS

Operating Clearance:
Intake: 0  Exhaust: 0
Valve Seat Angle, degrees: 45
Valve Timing: (BTDC = before top dead center; ATDC = after top dead center)
        Super V8; Century V8:
             Intake opens: 25 degrees BTDC
             Exhaust Closes: 42 ATDC
        Roadmaster V8:
            Intake opens: 28 degrees BTDC
            Exhause Closes: 42 degrees ATDC
Valve Spring Pressure Pounds at Inches Length:
    Inner Spring: 21-1/2 @ 1-1/2; Outer Spring: 40-1/2 @ 1-1/2
Valve Stem Clearance: Intake: .0025; Exhaust: .003

ENGINE BEARING SPECIFICATIONS

Connecting Rod Bearings:
    Journal Diameter, Inches: 2.249-2.250
    Bearing Clearance, Inch: .0002-.0023
    Rod End Play, Inch: .006-.011
    Rod Bolt Tension: Lbs.Ft.: 45-55

Main Bearings:
    Journal Diameter, Inches: 2.498-2.499
    Bearing clearance: .0005-.0025
    Shaft End Play: .004-.008    (Thrust on Bearing No. 3)
    Main Bolt Tension: Lbs.Ft.: 100-110

CAPACITY DATA

Cooling System:
   Super V8; Century V8:
        Without heater: 16-1/2 quarts (with Dynaflow 18)
        With heater: 18; quarts (with Dynaflow 18)
    Roadmaster V8:
        Without heater: 18-1/2
        With heater: 20
Fuel Tank: 19 gallons
Engine Oil: 6 quarts
Transmission: 2-1/2 w/auto 10 qts.
Rear Axle: 4-1/2 pints
1955 Buick 322 (188 hp) V8 Engine Specs

1955 Buick 322 (236 hp) V8 Engine Specs

1955 Buick 322 V8 Engine Specs:
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1955 Buick 322 V8 Engine Specs:
Delco-Remy Generator Specs


1955 Buick 322 V8 Engine Specs:
Delco-Remy Regulator Specs


1955 Buick 322 V8 Engine Specs:
Delco-Remy Starting Motor Specs


1955 Buick 322
Wheel Alignment Specs


Return to Buick Engine Specs Index


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