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ENGINE SPECS

1956 Studebaker 352 V8 Engine Specs

GENERAL SPECIFICATIONS

Model Designation:
    Golden Hawk V8: 56J
Wheel base: 120-1/2
Valve Location: In head
Bore and Stroke: 4 x 3-1/2
Piston displacement, Cubic Inches: 352
Compression ratio: 9.50
Maximum Brake Horsepower: 275 @ 4600 RPM
Maximum Torque Lbs.Ft. @ RPM: 380 @ 2800 RPM
Normal Oil Pressure Pounds: 45
TUNE UP SPECIFICATIONS
Spark Plug Make: Champion N18-67B
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: 5 degrees BTDC on Vib. Damp.
Engine Idle Speed, RPM:  450
Cylinder Head Torque Lbs.Ft.: 55-60
Compression Pressure & Cranking Speed: 140 Min.
Voltage & Polarity: 12 volts, negative ground

PISTON AND RING SPECIFICATIONS

Fitting Pistons with Scale:
Shim Thickness to use: .0015 (1/2 inch wide feeler);
Pounds Pull on Scale:: 6 to 11
Ring End Gap: (Fit rings in tapered bores for clearance shown in tightest portion of ring travel.)
Compression: .019
Oil: .015
Clearance in Groove: Compression: .0015-.005; Oil: .0015-.005
Wristpin Diameter, Inch: .9803

VALVE SPECIFICATIONS

Operating Clearance:
     Intake: 0     Exhaust: 0
Valve Seat Angle, degrees: Intake: 30; Exhaust: 45
Valve Timing: (BTDC = before top dead center; ATDC = after top dead center)
         Intake opens: 14 degrees BTDC
         Exhaust Closes: 18 ATDC
Valve Spring Pressure Pounds at Inches Length:
    Inner Spring: 92 @ 1=3/4
Valve Stem Clearance: Intake: .001-.002; Exhaust: .002-.003
Clearance for Timing Intake: 0

ENGINE BEARING SPECIFICATIONS

Connecting Rod Bearings:
    Journal Diameter, Inches: 2.2500
    Bearing Clearance, Inch: .0005-.0025
    Rod End Play, Inch: .003-.011
    Rod Bolt Tension: Lbs.Ft.: 40-45
Main Bearings:
    Journal Diameter, Inches: 2.4995-2.5000
     Bearing clearance: .0003-.0023
    Shaft End Play: .0035-.0085    (Thrust on front bearing)
    Main Bolt Tension: Lbs.Ft.: 90-95

CAPACITY DATA

Cooling System:
    Without heater: 25 quarts
    With heater: 26-1/2 quarts

Fuel Tank: 18 gallons
Engine Oil: 5 quarts
Transmission: w/out overdrive: 2.45 pint; with overdrive: 3.7; w/Auto. trans.: 11 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

·  Understanding Second Chance Garage's Vintage Auto Engine Specs


 
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