1951 Ford 226 Inline Six Engine Specs

GENERAL SPECIFICATIONS

Model Designation: Six Cylinder - 1HA

Wheel base: 114

Valve Location: In block

Bore and Stroke: 3.3" x 4.4"

Piston displacement, Cubic Inches: 226.0

Compression ratio: 6.80

Maximum Brake Horsepower: 95 @ 3300 RPM

Maximum Torque Lbs.Ft. @ RPM: 185 @ 1500

Normal Oil Pressure Pounds: 57

TUNE UP SPECIFICATIONS

Spark Plug Make: Champion H10

Spark Plug Gap, Inch: .030

Firing Order: 153624

Ignition Timing: Groove on Pulley

Engine Idle Speed, RPM: Manual shift trans. 475; automatic shift trans. 440

Cylinder Head Torque Lbs.Ft.: 65-70

Compression Pressure & Cranking Speed: 120 Min.

PISTON AND RING SPECIFICATIONS

Fitting Pistons with Scale:
    Removed from Above
    Shim thickness to use: .003";
    Pounds Pull on Scale: 6 to 12

Rings: (for tapered bores for minimum clearance fit rings in tightest portion of ring travel)
    Ring Gap, Minimum: Compression: .010
    Ring Gap, Minimum: Oil: .010
    Clearance in Groove: Compression: top ring: .0015-.003, lower rings .001-.0025
    Clearance in Groove: Oil: .001-.0025

Wristpin Diameter, Inch: .8501-.8504

VALVE SPECIFICATIONS

Operating Clearance:
Intake: .010 Cold
Exhaust: .014 Cold

Clearance for Timing Intake: .010

Valve Seat Angle, degrees: 45

Valve Timing: (BTDC = before top dead center; ATDC = after top dead center)
Intake opens: 11 BTDC
Exhaust Closes Degrees ATDC: 10

Valve Spring Pressure Pounds at Inches Length:
Spring: 47 @ 2-7/64

Valve Stem Clearance:
Intake: .0015-.0035
Exhaust: .002-.004

ENGINE BEARING SPECIFICATIONS

Connecting Rod Bearings:
    Journal Diameter, Inches: 2.2988
    Bearing Clearance, Inch: .0004-.0027
    Rod End Play, Inch: .003-.007
    Rod Bolt Tension, Lbs.Ft.: 40

Main Bearings:
    Journal Diameter, Inches: 2.8740
    Bearing Clearance, Inch: .0005-.002
    Crankshaft End Play, Inch (taken on rear bearing): .004-.008
    Main Bolt Tension, Lbs.Ft.: 100

CAPACITY DATA

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

Fuel Tank: 16 gallons

Engine Oil: 4 quarts

Transmission:
without overdrive: 3-1/4 pints
with overdrive: 4 pints
with automatic transmission: 9-3/4 quarts

Rear Axle: 3-1/2 (station wagon 3)

LOADAMATIC DISTRIBUTOR SPECIFICATIONS

Distributor part number: 7HA-12127

Distributor Vacuum Advance Date:
    Degrees Advance:
        at 500 RPM: 1-3/4 - 3, Inches vacuum: .40
        at 1000 RPM: 5-1/2 - 6-3/4, Inches vacuum: 1.4
        at 1500 RPM: 8-1/2 - 9-3/4, Inches vacuum: 2.9
        at 2000 RPM: 10-1/2 - 11-1/2, Inches vacuum: 4.1

Breaker Gap, Inch: .024-.026

Condenser Capacity: .21-.25 Mfds.

Breaker Arm Spring Tension: 17-20 Oz.

Cam Angle: 36 degrees