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History of the Boss 302 and Boss 429 Mustang

In 1967 the first big-block Mustang wasthe man responsible for the excellent Boss
introduced, the S-code 390 which was rated at302 chassis, which quickly impressed the
320 hp. This Mustang was not able to competecritics with the way it hugged the road. The
with the hot new SS 396 Camaro , so in 1968engine was a Ford 5.0L block with the new 351
the 428 Cobra Jet engine was introduced,Cleveland heads. The car was originally to be
giving the Mustang true muscle car status,called the Trans Am, until Ford found out GM
but then why stop there? In February 1968had already licensed the name from the
when Bunkie Knudsen arrived in Dearborn heSCCA.The Boss 302 was rated at 290 HP because
brought with him some strong ideas concerninginsurance companies were beginning to
the Mustang. He believed the popular pony carpenalize the muscle cars by tacking on higher
was a good looking automobile, but that therecharges to any car rated over 300 HP. Actual
were a tremendous amount of people out therehorsepower was closer to 350. (These are
that wanted a good looking automobile thatGross HP figures, not Net, as used today).
could perform. He also knew that the Z/28Race versions made 450 HP at over 8,000
Camaro, created with SCCA Trans-Am roadRPMs.Boss 302s also ran in Nascar's Grand
racing in mind, could handle and stop as wellAmerican (GA) series. The car came with a
as it could accelerate. Big block pony carswide-ratio or close-ratio 4-speed top loader.
were faster, but left something to be desiredA 3.50:1 rear gear was standard with 3.91 and
going through the curves with all that weight4.30 optional. Front discs are rear drum
up front.Bunkie was able to lure several GMbrakes and 15-inch wheels were standard. Road
Design Engineers over to Ford in 1968. One oftests at the time put 1/4-mile performance in
them was designer Larry Shinoda, the man whothe upper 14-second range. However, Super
had drawn up the Z/28's sport image in 1967.Stock magazine tweaked a '70 Boss 302 and put
Shinoda was tasked with besting a performanceslicks on to get a time in the mid-13s.How
legend that he had helped to create. Shinodadid the Boss 302 compare to the Chevy Z28?
contributed the new cars stripes, spoilersWell it seems that is was very close indeed.
and window slats, as well as its name. TwoChevrolet's Trans-Am Camaro took home the
Boss Mustangs were born in 1969, bothSCCA racing championship in 1969, while
originally developed concurrently by Ford'sFord's Boss 302 put the Mustang back on top
performance contractor, Kar Kraftin 1970. As for street performance, both
Engineering, in Brighton, Michigan.The Bossmachines relied on specially built 290
429 was also built in response to Chrysler'shorsepower 302 cubic inch small block V8's.
426 Hemi and it's success in Nascar. FordPerformance was so close as to be a toss-up
built a 427 Hemi-headed single overhead camin most street or track encounters.In late
motor first, but it wasn't considered stock1970 Ford stopped all factory-sponsored
enough for the series so along came theracing. So regrettably the fun had to end ...
"semi-Hemi" head 429. Kar Kraft was given thefor now.This article is brought to you by
task of wedging a 429 into the Mustang.Dallas Dream Cars ( Your source for exotic
Quarter-mile times were reported to be in thecar rentals in the Dallas and Fort Worth
lower 14s. Although another of the hot rodarea. It is our mission to provide top of the
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stock 429 and got a 1/4 mile in the mid 12s.memorable experience that will last a
The street cars came from the factory with alifetime. Perfect for weddings, birthday's,
conservative cam and a somewhat smallanniversaries, high school reunions, or any
carburetor.Starting with the 1969 model yearspecial occasion, our cars will get you there
the Ford brought the road racing Mustangin style. Whether you're re-living the past,
program in house by creating the Boss 302or celebrating the future, Dallas Dream Cars
with styling by Larry Shinoda, suspension wasenables you to "Live the Dream"!
design by Kar Kraft. Engineer Matt Donner was



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