Image of Ford Mustang BOSS 429

Ford Mustang BOSS 429 specs

Car type Coupe
Curb weight 1615 kg (3560 lbs)
Dimensions 4.76 m (187 in) long, 1.81 m (71 in) wide, 1.30 m (51 in) high
Wheelbase 2.74 m (108 in)
Introduced 1970
Origin country United States
Views 17.9k
Submitted by Super8

Performance

0 - 100 kph5.4 s
0 - 60 mph5.1 s
1/4 mile13.6 s @ 106.3 mph
Top speed237 kph (147 mph)

Powertrain specs

Engine type Ford 385-series V-8 429
Displacement 7.0 l (429 ci / 7030 cc)
Power 380 ps (375 bhp / 280 kw) @ 5200 rpm
Torque 490 Nm (361 lb-ft) @ 3400 rpm
Power / liter 54 ps (53 hp)
Power / weight 235 ps (232 bhp) / t
Torque / weight 303 Nm (224 lb-ft) / t
Transmission 4 Speed Manual (4.3 ratio)
Layout front engine, rear wheel drive
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Bijan  9y ago

@ Super8 , never mind , good job.


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Super8  9y ago

Sorry that for 3.5 final ratio not 4.3. My mistake


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Bijan  9y ago

@ dear viking you are completely right, agree with you for 6.3 seconds from 60-100 mph , seems be good.


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Viking  9y ago

I looked it up. Car Life tested one in July 1969. The Boss 429 with 375 horsepower had a four speed manual transmission and a 3.91 rear axle. It did 0-60 mph in 7.1 seconds and the quarter mile in 14.09 seconds at 102.85 mph. Top speed was 116 mph. As far as the slow 0-60 mph is concerned, one does have to take into account the bias-ply tires of the time. Lots of wheel spin, and/or feathering of the throttle necessary in order to get off the line. I will leave it to others with more experience in such matters to estimate how much quicker it would have been with modern tires. I guess one clue would be that it took 7 seconds to go from 60 mph to 103 mph. Extrapolating a bit maybe 6.3 seconds from 60-100 mph, not bad.


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Viking  9y ago

@Bijan you are absolutely right once again. I think one of my books quotes the top speed at 116 mph or something like that. I will look it up later. The book should also cite the original source (one of the magazines from the era).


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Bijan  9y ago

Sorry, but the top speed is not correct, with opt 4.33 rear ratio and 4-speed, 147 mph ?! must be a 9000 rpm red line engine . but the red line of this engine in 1970 was 6150 rpm , according to the several articles from Car life, Car and driver and motor trend .


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Super8  10y ago

@ Apathy : Did you know how to post a pic in community comment?


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Super8  10y ago

@ Apathy : Sorry about that. I don't know the different between 1969 and 1970


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Apathy  10y ago

Blasphemy.

That's a picture of a 1969 Boss 429!

This is a 1970 (in grabber blue no less):

lol


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Super8  10y ago

Sorry the torque is 490 ft-lbs not 490 Nm


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Super8  10y ago

The year is 1970 and this one got optional 4.3 final ratio make this car top speed improved from 136 mph to 147 mph. But the 1/4 mile time will be 14 sec @ 99 mph