Not only is the Mach 1 428 Cobra Jet stylish, but it also packs a punch. Powering the vehicle was none other than the Cobra Jet V8 engine. The Cobra jet engine made its rounds back in the day, powering the Mercury Cougar, Ford Fairlane, and Ford Torino. The 428 title comes from the engine’s 428 cubic inch displacement.
With its V8 engine, 1969 Mustang Mach 1, 428 Cobra Jet, and 735 CFM Holley four-barrel carburetor, the 428 Cobra can pump out 335 hp at 5,600 rpm and a torque of 440 ft-lbs at 3,400RPM. Plus, with the Mach 1 package are some performance and visual upgrades. This includes hood pins, an upgraded interior, and high-back bucket seats. Keith’s Mustang can also be seen sporting Cragar wheels.
The 428 Cobra Jet engine was famously popular for drag racing due to its performance on the straight-away. This is undoubtedly thanks to its performance torque. There was also a Super Cobra Jet for drag racing that used the same engine block. The 428 engine was eventually discontinued in the 1971 model year as the Cobra engine evolved.
