1960 Chevrolet 235 (185 hp) Inline 6 Engine Specs

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GENERAL SPECIFICATIONS

Model Designation: Biscayne, Bel Air, Impala and Station Wagons (all engines available)

Wheel base: 119

Valve Location: In head

Bore and Stroke: 3.562 x 3.94

Piston displacement, Cubic Inches: 235

Compression ratio: 8.25

Maximum Brake Horsepower: 135 @ 4000 RPM

Maximum Torque Lbs.Ft. @ RPM: 217 @ 2000 RPM

Normal Oil Pressure Pounds: 35

TUNE UP SPECIFICATIONS (all models)

Spark Plug Make: AC 44

Spark Plug Gap, Inch: .035

Firing Order: 153624

Timing Mark: First short vertical line on flywheel clockwise from timing ball: Location: Flywheel

Engine Idle Speed, RPM: 425

Compression Pressure & Cranking Speed: 130 min.

Voltage & Polarity: 12 volts, negative ground

PISTON AND RING SPECIFICATIONS

Fitting Pistons with Scale: Pistons removed from above. Shim thickness: .0015

Pounds on a Pull Scale: 7-18

Ring End Gap: In tapered bores, fit rings in tightest portion of ring travel
Compression: .007
Oil: .015

Wristpin Diameter, Inch: .8662

VALVE SPECIFICATIONS

Operating Clearance:
Intake: 0 Exhaust: 0

Valve Seat Angle, degrees: Intake: 31; Exhaust: 46

Valve Timing: (BTDC = before top dead center; ATDC = after top dead center)
Intake opens: 16 BTDC
Exhaust Closes: 17-1/2 ATDC

Valve Spring Pressure Pounds at Inches Length:
Inner Spring: 158 @ 1.52

Valve Lift Zero Lash: Intake: .3275 Exhaust: .3275

Valve Stem Clearance: Intake: .0001-.0027; Exhaust: .001-.0027

Valve Stem Diameter: Intake: .3410-.3417 Exhaust: .3410-.3417

ENGINE BEARING SPECIFICATIONS

Connecting Rod Bearings:
Journal Diameter, Inches: 2.311-2.312
Bearing Clearance, Inch: .0007-.0027

Main Bearings:
    Journal Diameter, Inches:
        Number 1: 2.6835-2.6845
        Number 2: 2.7145-2.7155
        Number 3: 2.7455-2.7465
        Number 4: 2.7765-2.7775
    Bearing clearance: .001-.003
    Shaft End Play: .003-.009    (Thrust on Bearing 3)

CAPACITY DATA

Cooling System:
Without heater: 17 quarts
With heater: 18 quarts

Fuel Tank: 20 gallons; 18 gallons on 9 passenger Station Wagon, 17 gallons on 6 passenger Station Wagon.

Engine Oil: 5 quarts + 1 quart for filter change

Transmission: Standard: 2 pints; w/overdrive: 3 pints; Automatic: 3-1/2 quarts; 4 speed trans: 1-1/2 pints

Rear Axle: 4 pints

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