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ENGINE SPECS

1956 Studebaker 289 V8 Engine Specs

GENERAL SPECIFICATIONS

Model Designation:
    President V8, Classic V8, Sky Hawk V8, Pinehurst V8: 56H

Wheel base: President & Pinehurst: 116-1/2; Classic & Sky Hawk: 120-1/2

Valve Location: In head

Bore and Stroke: 3-9/16 x 3-5/8

Piston displacement, Cubic Inches: 289

Compression ratio: 7.80

Maximum Brake Horsepower: 195 @ 4500 RPM

Maximum Torque Lbs.Ft. @ RPM: 286 @ 2800 RPM

Normal Oil Pressure Pounds: 40

TUNE UP SPECIFICATIONS

Spark Plug Make: Champion H11

Spark Plug Gap, Inch: .035

Firing Order: 18436572 (front to rear: left bank: 1-3-5-7; right bank 2-4-6-8)

Ignition Timing: IGN on Vib. Damp.

Engine Idle Speed, RPM:  500

Cylinder Head Torque Lbs.Ft.: 60

Compression Pressure & Cranking Speed: 120 Min.

Voltage & Polarity: 12 volts, negative ground

PISTON AND RING SPECIFICATIONS

Fitting Pistons with Scale:
Shim Thickness to use: .002 (1 inch wide feeler);

Pounds Pull on Scale:: 11 to 16

Ring End Gap: (Fit rings in tapered bores for clearance shown in tightest portion of ring travel.)
Compression: .008
Oil: .008

Clearance in Groove: Compression: .002-.0025; Oil: .0015-.002

Wristpin Diameter, Inch: .875

VALVE SPECIFICATIONS

Operating Clearance:
     Intake: .024 Hot     Exhaust: .024 Hot

Valve Seat Angle, degrees: 45

Valve Timing: (BTDC = before top dead center; ATDC = after top dead center)
         Intake opens: 11 degrees BTDC
         Exhaust Closes: 14 ATDC

Valve Spring Pressure Pounds at Inches Length:
    Inner Spring: 50 @ 2-1/32

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

Clearance for Timing Intake: .030

ENGINE BEARING SPECIFICATIONS

Connecting Rod Bearings:
    Journal Diameter, Inches: 1.99925-2.00025
    Bearing Clearance, Inch: .0005-.00215
    Rod End Play, Inch: .007-.012
    Rod Bolt Tension: Lbs.Ft.: 52-54

Main Bearings:
    Journal Diameter, Inches: 2.4995-2.5000
     Bearing clearance: .0006-.0027
    Shaft End Play: .003-.006    (Thrust on front bearing)
    Main Bolt Tension: Lbs.Ft.: 88-93

CAPACITY DATA

Cooling System:
    Without heater: 17-1/4 quarts
    With heater: 18-1/2 quarts

Fuel Tank: 18 gallons

Engine Oil: 5 quarts

Transmission: w/out overdrive: 2.4 pint; with overdrive: 3.4 (Classic: 3.7); w/Auto. trans.: 9 quarts

Rear Axle: 3 pints

DELCO-REMY DISTRIBUTOR SPECIFICATIONS

Distributor part number: 1110864 (distributor rotates counter-clockwise when viewed from top)

Cam Angle, degrees: 26-33

Breaker Point opening, Inch: .016

Condenser Capacity: .20-.25 Mfds.

Breaker Arm Spring Tension: 17-21 Oz.

Centrifugal Advance: (degrees at RPM of distributor)
   
Advance starts: 1 degrees @ 400
   Full Advance: 12 degrees @ 1125

Vacuum Advance Data:
    Inches of Vacuum to Start Plunger Movement: 4-6
    Inches of Vacuum for Full Plunger Travel: 10-1/2 - 11-1/2
    Maximum Vacuum Advance, Dist. Degrees: 8

DELCO-REMY GENERATOR SPECIFICATIONS

Generator Number: 1102003 (generator rotates clockwise, 6 volts, positive ground)

Generator output: 30 amps @ 2150 RPM

Brush Spring Tension: 28 oz.

Field Current: 1.48 - 1.62 at 12 volts

DELCO-REMY REGULATOR SPECIFICATIONS

Regulator Number: 1119123

Cutout Relay:
    Voltage to close points: 12.2
    Reverse Current to Open Points:
    Armature Air Gap: .020

Voltage Regulator Setting: 14.3 volts

Current Regulator Setting: 30 amps

Current and voltage armature air gap, Inch: .075

DELCO-REMY STARTING MOTOR SPECIFICATIONS

Part number: 1107650, 1107651 (starter rotates clockwise)

Bush Spring Tension, Ounces: 35

No Load Test: 75 amps, 10.3 volts @ 6900 RPM

Torque Test: 435 Amps, 5.8 volts, Torque, Lbs.Ft.: 10.5

WHEEL ALIGNMENT SPECIFICATIONS

Caster, Degrees
    Limits: -1 to -2-1/2
    Desired: -1-3/4

Camber, Degrees
    Limits: 0 to +1
    Desired: +1/2

Toe-In, Inches: 1/16 to 1/8

Toe-Out on Turns, Degrees: (If toe-out is incorrect, when other adjustments are correct, look for bent steering arms.)
    Outer wheel: 20
    Inner Wheel: 22-1/2 to 23-1/2

Kingpin Angle, or Steering Axis Degrees: (If king pin or spindle support angle are incorrect, but camber is correct, look for bent suspension arms or steering knuckle support)
    6 @ 0 Camber


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