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Second Chance Garage

For the Classic Car
Restoration Enthusiast

Second Chance Garage

Second Chance Garage

For the Classic Car
Restoration Enthusiast

Second Chance Garage

Second Chance Garage

For the Classic Car Restoration Enthusiast

Second Chance Garage

ENGINE SPECS

1957 Buick 364 (300 hp) V8 Engine Specs

GENERAL SPECIFICATIONS

Model Designation: Super V8-Series 50; Century V8-Series 60; Roadmaster V8-Series 70 V8 - Series 40

Wheel base: Super V8: 127-1/2; Century V8: 122; Roadmaster V8: 127-1/2

Valve Location: In head

Bore and Stroke: 4.125 x 3.400

Piston displacement, Cubic Inches: 364

Compression ratio: Super V8: 10.0; Century V8: 10.0; Roadmaster V8: 10.0

Maximum Brake Horsepower: Super V8: 300 @ 4600 RPM; Century V8: 300 @ 4600 RPM; Roadmaster V8: 300 @ 4600 RPM

Maximum Torque Lbs.Ft. @ RPM: Super V8: 400 @ 3200 RPM; Century V8: 400 @ 3200 RPM; Roadmaster V8: 400 @ 3200 RPM

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 to 13

Ring End Gap:
Compression: .010
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: 34 degrees BTDC
Exhaust Closes: 41 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-.002

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: 18

Fuel Tank: 20 gallons

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

Standard Transmission: 2-1/2 pints; Automatic transmission: 11 qts.

Rear Axle: 6 pints

Other 1957 Buick engine specs

1957 Buick 364 (250 hp) V8 Engine Specs

1957 Buick 364 (300 hp) V8 Engine Specs

1957 Buick 364 V8 Engine Specs:
Distributor Specs


1957 Buick 364 V8 Engine Specs:
Generator Specs


1957 Buick 364 V8 Engine Specs:
Regulator Specs


1957 Buick 364 V8 Engine Specs:
Starting Motor Specs


1957 Buick 364
Engine Tightening Specs


1957 Buick 364
Wheel Alignment Specs


Return to Buick Engine Specs Index