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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


1950 Cadillac 331 (160 hp) V8 Engine Specs


Model Designation: Series 60S, Series 61, Series 62, Series 75

Wheel base: Series 60S: 130; Series 61: 122; Series 62: 126; Series 75: 146-1/2

Valve Location: In head

Bore and Stroke: 3-13/16 x 3-5/8

Piston displacement, Cubic Inches: 331.0

Compression ratio: 7.50

Maximum Brake Horsepower: 160 @ 3800 RPM

Maximum Torque Lbs.Ft. @ RPM: 312 @ 1800 RPM

Normal Oil Pressure Pounds: 35


Spark Plug Make: AC 48X

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: Standard transmission: 375; w/automatic 375 (in drive)

Cylinder Head Torque Lbs.Ft.: 65-70

Compression Pressure & Cranking Speed: 120 min.

Voltage & Polarity: 6 volts, negative ground


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: .010
Oil: .010

Clearance in Groove: Compression: .0017-0035; Oil: .0015-.003

Wristpin Diameter, Inch: 1.000


Operating Clearance: Intake: 0Exhaust: 0

Valve Seat Angle, degrees: 44

Valve Timing: (BTDC = before top dead center; ATDC = after top dead center)
Intake opens: 14 BTDC
Exhaust Closes: 24 ATDC

Valve Spring Pressure Pounds at Inches Length: Inner Spring: 60 @ 1-11/16

Valve Stem Clearance: Intake: .001-.0025;Exhaust: .0015-.0035


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: 2.4990-2.4995
Bearing clearance: .0008-.0025
Shaft End Play: .001-.005(Thrust on Rear Bearing)
Main Bolt Tension: Lbs.Ft.: 90-100


Cooling System: Without heater: 18 quarts
With heater: 19

Fuel Tank: 20 gallons

Engine Oil: 5 quarts

Transmission: w/out overdrive: 2-1/2 pints; Automatic: 12 quarts

Rear Axle: 5 pints

Other 1950 Cadillac Engine Specs

1950 Cadillac 331 V8 (160 hp) Engine Specs

1950 Cadillac 331 V8:
Distributor Specs

1950 Cadillac 331 V8:
Generator Specs

1950 Cadillac 331 V8:
Regulator Specs

1950 Cadillac 331 V8:
Starting Motor Specs

1950 Cadillac:
Wheel Alignment Specs

Return to Cadillac Engine Specs Index

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