ENGINE SPECS

1956 Cadillac 365 (305 hp) V8 Engine Specs

GENERAL SPECIFICATIONS

Model Designation: El Dorado Series 62
Wheel base: Series 62: 129
Valve Location: In head
Bore and Stroke: 4 x 3-5/8
Piston displacement, Cubic Inches: 365
Compression ratio: 9.75
Maximum Brake Horsepower: Eldorado 305 @ 4700
Maximum Torque Lbs.Ft. @ RPM: Eldorado 400 @ 3200
Normal Oil Pressure Pounds: 30-35

TUNE UP SPECIFICATIONS (all models)

Spark Plug Make: AC 44
Spark Plug Gap, Inch: .035
Firing Order: 18436572 (front to rear: Right bank 2-4-6-8, left bank 1-3-5-7)
Timing Mark: "A" mark for premiurm fuel; "C" mark for regular fuel; location: Vib. Damper
Engine Idle Speed, RPM:  w/automatic 400 (in drive)
Cylinder Head Torque Lbs.Ft.: 65-70
Compression Pressure & Cranking Speed: 165 min.
Voltage & Polarity: 12 volts, negative ground

PISTON AND RING SPECIFICATIONS

Fitting Pistons with Scale: Pistons removed from above. Shim thickness: .002
Pounds on a Pull Scale: 11
Ring End Gap: In tapered bores, fit rings in tightest portion of ring travel
Compression: .013
Oil: .013
Clearance in Groove: Compression: .0017-0035; Oil: .0008-.0026
Wristpin Diameter, Inch: 1.000

VALVE SPECIFICATIONS

Operating Clearance:
     Intake: 0  Exhaust: 0
Valve Seat Angle, degrees: 44
Valve Timing: (BTDC = before top dead center; ATDC = after top dead center)
         Intake opens: 22 BTDC
         Exhaust Closes: 27 ATDC
Valve Spring Pressure Pounds at Inches Length:
    Inner Spring: 65 @ 1.980
Valve Stem Clearance: Intake: .0001-.0025; Exhaust: .001-.0025

ENGINE BEARING SPECIFICATIONS

Connecting Rod Bearings:
    Journal Diameter, Inches: 2.2488-2.2493
    Bearing Clearance, Inch: .0005-.002
    Rod End Play, Inch: .008-.014
    Rod Bolt Tension: Lbs.Ft.: 40-45
Main Bearings:
    Journal Diameter, Inches: 2.625
    Bearing clearance: .0008-.0025
    Shaft End Play: .001-.005    (Thrust on Rear Bearing)
    Main Bolt Tension: Lbs.Ft.: 90-100

CAPACITY DATA

Cooling System:
    Without heater: Series 60, 62: 17-1/4 quarts; With heater: 19-1/4 quarts
    Without heater: Series 75: 17-1/4 quarts; With heater: 21-3/4 quarts
Fuel Tank: 20 gallons
Engine Oil: 5 quarts
Transmission: Automatic: 12 quarts
Rear Axle: 5 pints
1956 Cadillac 365 V8 (285 hp) Engine Specs

1956 Cadillac 365 V8 (305 hp) Engine Specs

1956 Cadillac 365 (305 hp) V8:
Distributor Specs


1956 Cadillac 365 (305 hp) V8:
Generator Specs


1956 Cadillac 365 (305 hp) V8:
Regulator Specs


1956 Cadillac 365 (305 hp) V8:
Starting Motor Specs


1956 Cadillac 365 (305 hp) V8:
Engine Tightening Specs


1956 Cadillac:
Wheel Alignment Specs


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