International Harvester 660 VS Allis Chalmers 7580 specs comparison

International Harvester 660

General Infos

Make	International Harvester
Model	660
Country	United states
Production	From 1959  Until 1963
Price	6,000  USD
Tractor type	Standard tread tractor
Fuel	gasoline
Service repair manual	International Harvester 660 Manual

Dimensions, sizes and tires

AG front tires	7.50-18
AG rear tires	18.4/15-34
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	23.1/18-26
Weight	9,635 lbs or 4370 kg
Length	142.6 inches [362 cm]
Width	78 inches [198 cm] (min)
Height	-
Wheelbase	85.5 inches [217 cm]
Ground clearance	19.7 inches [50 cm] (frame)
Turning radius	14.5 feet [4.4 m]
Rear tread size	-
Front tread size	-
Turning radius	-

Horsepower and engin specs

Engine capacity	263 ci or 4.3 L
Cylinders	6 cylinders
Engine power	95 hp or 70.8 kW
Engine RPM	2400 (rpm)
Torque	212 lb-ft or 287.5 Nm
Torque RPM	1200 (rpm)
Fuel type	gasoline
Fuel injection	-
Fuel tank size	33 gal or 124.9 L
Oil capacity	9 qts or 8.5 L
Oil change	-
Starter motor	-
Starter volts	-
Parts And Accessories	International Harvester 660 Parts

Electrical and battery specs

Batteries number	-
Batteries voltage	-
Battries Amps	-
Cold Amps	-
Ground force	-
Charging system	-
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	Torque Amplifier
Trans type	-
Trans gears	10 forward and 2 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x2 2WD
Final drive	-
Steering	manual
Braking system	independent mechanical disc
Cabin type	Open operator station
Differentiel lock	-

Hydraulics specifications

System	-
Valves	1
Pump flow	-
SVC flow	-
Steering flow	2.5 gpm or 9.5 lpm
Tank capacity	-
Hydraulic pressure	-
Max flow	12 gpm or 45.4 lpm

Drawbar specifications

Drawbar type	-
Claimed power	-
Drawbar horsepower	69.66 hp or 51.9 kW
Fuel consumption	8.8 gal/hour or 33.3 l/hour
Pulling power	11,046 lbs or 5010 kg

Power take-off (PTO) specs

Claimed power	-
Real power	80.63 hp or 60.1 kW
Engine @RPM	-
PTO Clutch	-
Rear PTO	independent
Rear PTO RPM	540 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	8.9 gal/hour or 33.7 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	-
Rear hitch lift	-
Front hitch	-
Front hitch lift	-

Allis Chalmers 7580

General Infos

Make	Allis Chalmers
Model	7580
Country	United states
Production	From 1977  Until 1981
Price	63,084  USD
Tractor type	Four wheel Drive (4WD) tractor
Fuel	diesel
Service repair manual	Allis Chalmers 7580 Manual

Dimensions, sizes and tires

AG front tires	23.1x30
AG rear tires	23.1x30
Lawn front tires	-
Lawn rear tires	-
Indus front tires	-
Indus rear tires	-
Weight	23,100 lbs or 10478 kg
Length	225 inches [571 cm]
Width	95.5 inches [242 cm]
Height	-
Wheelbase	126 inches [320 cm]
Ground clearance	17 inches [43 cm]
Turning radius	-
Rear tread size	62 to 123 inches
Front tread size	62 to 123 inches
Turning radius	-

Horsepower and engin specs

Engine capacity	426 ci or 7.0 L
Cylinders	6 cylinders
Engine power	-
Engine RPM	2550 (rpm)
Torque	-
Torque RPM	-
Fuel type	diesel
Fuel injection	-
Fuel tank size	170 gal or 643.5 L
Oil capacity	25 qts or 23.7 L
Oil change	-
Starter motor	-
Starter volts	12 V
Parts And Accessories	Allis Chalmers 7580 Parts

Electrical and battery specs

Batteries number	4
Batteries voltage	12 V
Battries Amps	-
Cold Amps	-
Ground force	-
Charging system	alternator
Charging Volts	-
Charging Amps	-

Clutch and gearbox specs

Trans system	Power Director
Trans type	partial power shift
Trans gears	20 forward and 4 reverse
Clutch system	-

Cabine and mechanical specs

Wheel drive	4x4 articulated 4WD
Final drive	-
Steering	hydrostatic power
Braking system	hydraulic wet discs
Cabin type	Acousta cab standard with heat and air-conditioning
Differentiel lock	-

Hydraulics specifications

System	closed center
Valves	3 to 4
Pump flow	23 gpm or 87.1 lpm
SVC flow	-
Steering flow	-
Tank capacity	-
Hydraulic pressure	-
Max flow	74.9 gpm or 283.5 lpm

Drawbar specifications

Drawbar type	-
Claimed power	153 hp or 114.1 kW
Drawbar horsepower	153.70 hp or 114.6 kW
Fuel consumption	12.6 gal/hour or 47.7 l/hour
Pulling power	23,310 lbs or 10573 kg

Power take-off (PTO) specs

Claimed power	186 hp or 138.7 kW
Real power	186.35 hp or 139.0 kW
Engine @RPM	-
PTO Clutch	-
Rear PTO	independent
Rear PTO RPM	1000 (rpm)
Front PTO	-
Front PTO RPM	-
Mid PTO	-
Mid PTO RPM	-
Fuel consumption	12.6 gal/hour or 47.7 l/hour

3 point hitch specifiations

Hitch system	-
Rear hitch	III
Rear hitch lift	-
Front hitch	-
Front hitch lift	-

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