1969 Boss 429 Specifications


1969 Mustang Boss 429
Specifications

Vehicle Front Engine, rear wheel drive, 2+2 passenger coupe
Base Price (in 1969)

Base Mustang Fastback $2,740.00
Boss 429 V-8 1,208.00

Options:

4-Speed $254.00
Limited Slip $64.00
Power Front Disc Brakes $65.00
Special Suspension $31.00
Front Spoiler $13.00
Trunk Mounted 85-amp Battery $32.00
AM/FM Radio $214.00
Power Steering $110.00

Engine V-8, water cooled, Cast Iron Block and Aluminum heads,
Bore & Stroke 4.36" x 3.59"
Displacement 429 cu in.
Compression ratio 10.5 to 1 on super premium gasoline
Carburetion 1 x 4 Holley 735 cfm
Valve Gear Pushrod operated overhead valves, hydraulic lifters, "twisted" hemispherical combustion chamber
Cam Duration Intake/Exhaust 285/285
Normal oil pressure 50@2,000 rpm
Power (SAE) 375 bhp @5,200 rpm
Torque (SAE) 410 ft.lbs. @3,400 rpm
Specific power output
Max recommended rpm
Clutch Single dry disc 11.0 inch diameter
Spark Plugs Autolite AF-42 gap 0.035 in.
Ignition point gap 0.020 in.
Drive Train
Transmission 4-speed, all synchro
Final drive ratio 3.91 to 1, Hypoid with Limited Slip
Gear
Gear Gear Ratio MPH/1000 RPM
First 2.32 6.9
Second 1.69 9.9
Third 1.29 14.0
Fourth 1.00 19.1
Dimensions and Capacities
Wheel base 108.0 in
Track f/r 59.3/58.5 in.
Length 187 in.
Width 72 in.
Height 51 in.
Ground Clearance
Curb Weight 3,560 lbs.
Weight Distribution F/R 58.5/41.5%
Battery Capacity 12 volts, 55 amps/hour
Alternator Capacity 795 watts
Fuel Capacity 18 gallons
Oil Capacity 8.0 quarts
Water Capacity 22.5 quarts
Suspension
Front Upper A-Arm, independent unequal length control arms, tube shocks, coil springs, anti-sway bar
Rear Tube shocks, rigid axle, semi-elliptic leaf springs, anti-sway bar
Steering
Type Recirculating ball, variable ratio over all ratio 20.3:1
Turns, lock to lock 4
Turning circle 38 feet
Brakes
Front 11.3 in. vented disc, power assist
Rear 10.0 x 2.5 in. cast iron drum, power assist
Wheels and Tires
Wheel size 15 x 7.0 in.
Wheel type Stamped Steel, 5 bolt
Tire make and size Goodyear Polyglas GT F60-15
Tire type Fiberglass bias-belted
Tire loading rating 1500 lbs per tire @ 32 psi
Performance
0-30 3.2 secs
0-40 4.3
0-50 5.8
0-60 7.1
0-70 8.6
0-80 10.0
0-90 11.8
0-100 13.6
Standing 1/4 mile 14.09 secs @ 102.85 mph
Top Speed (at redline) 118 mph
80-0 35 ft per sec
Fuel Mileage 9-12 mpg on premium fuel
Cruising range 170-220 miles


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