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ENGINE SPECS

1958 Buick 364 (300 hp) V8 Engine Specs

GENERAL SPECIFICATIONS

Model Designation: Super V8 - Series 50; Century V8 - Series 60, Roadmaster V8 - Series 70, Limited V8 - Series 700

Wheel base: Super V8 - 127.5; Century V8 - 122; Roadmaster V8 - 127.5; Limited V8 - 127.5

Valve Location: In head

Bore and Stroke: 4.125 x 3.400

Piston displacement, Cubic Inches: 364

Compression ratio: Super V8, Century V8, Roadmaster V8, Limited V8: 10.0

Maximum Brake Horsepower: Super V8, Century V8, Roadmaster V8, Limited V8: 300 @ 4600

Maximum Torque Lbs.Ft. @ RPM: Super V8, Century V8, Roadmaster V8, Limited V8: 400 @ 2400

Normal Oil Pressure Pounds: 40

TUNE UP SPECIFICATIONS

Spark Plug Make: AC 44

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 [Note: When setting timing, adjust idle to 400 RPM so that vacuum and centrifugal advance mechanisms are not in operation.]

Engine Idle Speed, RPM:  485

Voltage & Polarity: 12 volts, negative ground

PISTON AND RING SPECIFICATIONS

Fitting Pistons with Scale:
Shim thickness .003
Pounds on Scale: 7 - 13

Ring End Gap:
Compression: .015
Oil: .015
[Note: Fit rings in tapered bores for clearance given in tightest portion of ring travel]

Wristpin Diameter, Inch: .9995

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
     Intake opens: 25 degrees BTDC
     Exhaust Closes: 37 ATDC

Valve Spring Pressure Pounds at Inches Length:
    Inner Spring: 63 @ 1.20; Outer Spring: 93 @ 1.10

Valve Stem Clearance: Intake: .0015-.0035; Exhaust: .003-.005

ENGINE BEARING SPECIFICATIONS

Connecting Rod Bearings:
    Journal Diameter, Inches: 2.249-2.250
    Bearing Clearance, Inch: .0002-.0023

Main Bearings:
    Journal Diameter, Inches: 2.498-2.499
    Bearing clearance: .0005-.0025
    Shaft End Play: .004-.008    (Thrust on Bearing No. 5)

CAPACITY DATA

Cooling System:
        Without heater: 16-1/2
        With heater: 19

Fuel Tank: 20 gallons

Engine Oil: 5 quarts (6 quarts with filter change)

Standard Transmission: 2-1/2 pints; Automatic transmission: 11 qts.; Flight Pitch Dynaflow: 12-1/2 qts.

Rear Axle: 6 pints

Other 1958 Buick engine specs

1958 Buick 364 (250 hp) V8 Engine Specs

1958 Buick 364 (300 hp) V8 Engine Specs

1958 Buick 364 V8 Engine Specs:
Distributor Specs


1958 Buick 364 V8 Engine Specs:
Generator Specs


1958 Buick 364 V8 Engine Specs:
Regulator Specs


1958 Buick 364 V8 Engine Specs:
Starting Motor Specs


1958 Buick 364
Engine Tightening Specs


1958 Buick 364
Wheel Alignment Specs


Return to Buick Engine Specs Index


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