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Second Chance Garage

For the Car Restoration Enthusiast

Second Chance Garage

Second Chance Garage

For the Car Restoration Enthusiast

Second Chance Garage

For the Car Restoration Enthusiast

Second Chance Garage
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ENGINE SPECS

1956 Ford 312 V8 Engine Specs

GENERAL SPECIFICATIONS

Model Designation: V8 - P6

Wheel base: 115-1/2

Valve Location: In head

Bore and Stroke: 3.80" x 3.44"

Piston displacement, Cubic Inches: 312

Compression ratio: w/overdrive: 8.4;
w/Fordomatic: 9.0

Maximum Brake Horsepower:
w/overdrive: 215 @ 4600 RPM
w/Fordomatic: 225 @ 4600 RPM

Maximum Torque Lbs.Ft. @ RPM:
w/overdrive: 317 @ 2600
w/Fordomatic: 324 @ 2600

Normal Oil Pressure Pounds: 50

TUNE UP SPECIFICATIONS

Spark Plug Make: Champion 870

Spark Plug Gap, Inch: .035

Firing Order: 15486372(from front to rear: Right 1-2-3-4; left 5-6-7-8

Ignition Timing: Marks on Vib. Damp. Wide mark is TDC, each succeeding mark represents 2, 4, 6, 8 and 10 degrees before TDC. Set timing 3 degrees BTDC on cars with manual shift transmission and 6 degrees BTDC on Fordomatic equipped cars.

Engine Idle Speed, RPM: Manual shift trans. 475; automatic shift trans. 450

Cylinder Head Torque Lbs.Ft.: 60-75

Compression Pressure & Cranking Speed: 160 Min.

PISTON AND RING SPECIFICATIONS

Fitting Pistons with Scale: Removed from Above
Shim thickness to use: .002
Pounds Pull on Scale: 5 to 10

Rings: (for tapered bores for minimum clearance fit rings in tightest portion of ring travel)
Ring Gap, Minimum: Compression: .010
Ring Gap, Minimum: Oil: .015
Clearance in Groove: Compression: .002-.0035
Clearance in Groove: Oil: .0015-.003

Wristpin Diameter, Inch: .9120-.9123

VALVE SPECIFICATIONS

Operating Clearance: Intake: .019 Hot
Exhaust: .019 Hot

Clearance for Timing Intake: .019

Valve Seat Angle, degrees: 45

Valve Timing: (BTDC = before top dead center; ATDC = after top dead center)
Intake opens: 12 degrees BTDC
Exhaust Closes: 8 degrees ATDC

Valve Spring Pressure Pounds at Inches Length: Spring: 64 @ 1.78

Valve Stem Clearance: Intake: .004
Exhaust: .005

ENGINE BEARING SPECIFICATIONS

Connecting Rod Bearings: Journal Diameter, Inches: 2.1880-2.1888
Bearing Clearance, Inch: .036 Max.
Rod End Play, Inch: .019 Max.
Rod Bolt Tension, Lbs.Ft.: 45-50

Main Bearings: Journal Diameter, Inches: 2.6235-2.6243
Bearing Clearance, Inch: .0036 Max.
Crankshaft End Play, Inch (taken on No. 3 bearing): .010 Max.
Main Bolt Tension, Lbs.Ft.: 120-130 NOTE: Ford changed the Main Bolt Tension for this engine in 1957 to 95-105 Lbs.Ft. to resolve cracking problems.

CAPACITY DATA

Cooling System: Without heater: 19 quarts
With heater: 20 quarts

Fuel Tank: 17 gallons (station wagons and couriers 19 gallons)

Engine Oil: 5 quarts

Transmission:
without overdrive: 3 pints, Thunderbird: 3-1/2 pints
with overdrive: 3, station wagon 4-1/2, Thunderbird 4-1/2
Automatic Transmission: 9-3/4 quarts, Thunderbird 10-1/4

Rear Axle: 4 pints; Station wagon: 3, Thunderbird 3

STARTING MOTOR SPECIFICATIONS

Unit Number: FAR-11001A

Brush Spring Tension: 48-56 ounces

No Load Test: 120 Amps, 12 Volts @ 4800 RPM

Torque Test: 550 Amps, 5.0 Volts, 15.5 Lbs.Ft. Torque

LOADAMATIC DISTRIBUTOR SPECIFICATIONS

Cam Angle, degrees: 28

Breaker Gap, Inch: .014-.016

Condenser Capacity: .21-.25 Mfds.

Breaker Arm Spring Tension: 17-20 Oz.

Distributor Vacuum Advance Data:
Centrifugal Advance:
(w/4 barrel carb.)
Degrees advance at 300 RPM: 0 - 1/2, Inches vacuum: .16
Degrees advance at 400 RPM: 0 - 1, Inches vacuum: .29
Degrees advance at 800 RPM: 5-1/2 - 6-1/2, Inches vacuum: .88
Degrees advance at 1200 RPM: 8-1/2 - 9-1/2, Inches vacuum: 1.27
Degrees advance at 1600 RPM: 11 - 12, Inches vacuum: 1.73
Degrees advance at 2000 RPM: 13 - 14, Inches vacuum: 2.19

GENERATOR SPECIFICATIONS

Generator Number: FAR-10000B, FAS-10000C (generator rotates clockwise)

Generator output:
30 Amps @ 3000

Brush Spring Tension: 30 oz.

REGULATOR SPECIFICATIONS

Regulator Number: FAP-10505

Cutout Relay: Voltage to close points: 12.4
Reverse Current to Open Points: 2-6 amps
Voltage regulator setting: 15.0 volts
Current regulator settins: 30 amps

ENGINE TIGHTENING SPECIFICATIONS (FT./LBS.)

Spark Plugs: 15-20

Cylinder Head Bolts: 65-70

Intake Manifold: 23-28

Exhaust Manifold: 23-28

Rocker Arm Shaft Bracket: 12-15

Rocker Arm Cover: 2 - 2-1/2

Connecting Rod Cap Bolts: 45-50

Main Bearing Cap Bolts: 120-130

Flywheel to Crankshaft: 75-85

Vibration Damper or Pulley: 130-145

REAR AXLE AND BRAKE CYLINDER SPECIFICATIONS

Ring Gear & Pinion Backlash, Inch:
Passenger Car:
.003-.008
Station Wagon: .003-.008

Drive Pinion Adjustment:
Passenger Car:
Shims
Station Wagon: Shims

Drive Pinion Bearing Adjustment:
Passenger Car:
Spacer
Station Wagon: Spacer

Axle Shaft End Play, Inch:
Passenger Car:
None
Station Wagon: None

Hydraulic Cylinder Bore Sizes, Inch:
Wheel Cylinder:
Front:
1-1/8
Rear: 7/8 (incl Thunderbird) (station wagon: 15/16)
Master Cylinder: 1

WHEEL ALIGNMENT SPECIFICATIONS

Caster, Degrees
Limits: 1/2 to + 1-1/2 (incl Thunderbird)
Desired: 1 (incl Thunderbird)

Camber, Degrees
Limits: 1/4 to +1-1/4 (incl Thunderbird)
Desired: +3/4 (incl Thunderbird)

Toe-In, Inches: 1/16 to 1/8 (incl. Thunderbird)

Toe-Out on Turns, Degrees: (If toe-out is incorrect, when other adjustments are correct, look for bent steering arms.)
Outer wheel: 20 (incl Thunderbird)
Inner Wheel: 24-1/2 (incl Thunderbird)

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 spindle support) 7° 7' (incl Thunderbird)