1969 Ford Mustang Mach 1 428 Cobra Jet
Dearborn's fight to shed its also-ran image got a boost when the Mach 1 moved into the starting gate. Here was a Mustang that looked the part of a modern pony muscle car, and in 1969 Ford Mustang Mach 1 428 Cobra Jet livery, it ran like one.
Mustang was restyled for '69, gaining 3.8 inches of body length -- all ahead of the front wheels -- and about 140 pounds of curb weight. The flowing lines looked right in new Mach 1 livery. This was the mainstream performance version. It came standard with a 351-cid V-8, but star of the stable was the optional 428-cid Cobra Jet.
©2007 . Standard bucket seats, three-spoke wheel with "rim-blow" horn, and woodgrain trim made for a sporty cabin.
Essentially the same V-8 that put Ford muscle on the map in the 1968 1/2 Cobra Jet Mustang, it came in three states of tune for '69. The base version without Ram Air cost $224; $133 more bought the fresh-air induction system, which this year used a new "shaker" hood in which a scoop mounted to the air cleaner protruded through a hole in the hood and vibrated ominously with the engine.
©2007 . Top engine was the 428-cid Cobra Jet, here with the extra-cost ram-air shaker scoop that stuck up through the hood and trembled along with the 335-bhp V-8.
A third version triggered by the $155 Drag-Pack option was the 428 Super Cobra Jet Ram Air. It used the shaker scoop, plus a modified crankshaft and stronger connecting rods for better high-rpm durability, as well as an engine oil cooler that decreased lubricant temperature by 30 degrees. The Drag Pack came with limited-slip 3.91:1 or 4.30:1 cogs and excluded air conditioning. All versions used a four-speed or Ford's improved SelectShift automatic. And all were underrated at 335 bhp.
©2007 . With 59 percent of its weight over the nose, a Mach 1 428 Cobra Jet struggled for traction, but looks, power, and personality made this a Ford muscle car classic.
But the Cobra Jet's most-pertinent product was torque, enough to send the F40xl4s up in a haze of Polyglas. With 3.91:1 gearing, even the automatic broke 'em lose at each full-throttle upshift. Great for grins, bad for ETs. The root of the problem was a 59-percent-front weight bias, an imbalance that contributed to sloppy handling, as well.
But this was the Mustang Ford fans had waited for -- cheaper than a Boss 429, less temperamental than a Boss 302, and a force anywhere fast cars gathered.
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Specifications
Wheelbase, inches: 108.0
Weight, lbs: 3,600
Number built: 13,261
Base price: $3,500
Standard Engine
Type: ohv V-8
Displacement, cid: 428
Fuel system: 1 x 4bbl.
Compression ratio: 10.6:1
Horsepower @ rpm: 335 @ 5200
Torque @ rpm: 440 @ 3400
Representative Performance
0-60 mph, sec: 5.7
1/4 mile, sec. @ mph: 13.9 @ 103