In 2003 and 2004 the "Mach 1" nameplate returned. The original 1969 and
1970 Mustang Mach 1s were (and remain) some of the most popular
Mustangs ever, Ford introduced the new Mach 1 to keep interest in the
current Mustang high until the release of the S-197 with yet another
special-edition Mustang. The Mach 1 used a non-supercharged version of
the Cobra's 4.6 DOHC V8 which utilized cams from the Lincoln Navigator
motor, and it was conservatively rated at 305 hp (310 hp in 2004).
Other special features included "retro" interior styling, with seats
made to look like the "comfortweave" seats in the original Mach 1s,
old-style gauges, and aluminum pedals and shifter. Outside, the Mach 1
featured a striping package and blacked-out spoiler designed to mimic
the original Mach 1, "Magnum 500" styled 17-inch wheels, and a "Shaker"
hoodscoop. The "Shaker" was so named because it was attached to the
engine and stuck out through a hole in the hood, and would move with
the torque of the motor. Ford utilized the same casting for the new
"Shaker" that they had for the 1969 model year. Despite having
camshafts that produce power at lower rpm, the Mach 1's 4.6 produced as
much power as the '01 Cobra, in part to the revised 4-valve heads, an
increase in compression from 9.85:1 to 10:1, and the ram-air system.
The Mach 1 was also equipped with 3.55:1 rear gears (manual
transmissions only), making it capable of very low 13-second 1/4 mile
ETs and ~106 mph trap speeds with an experienced drag driver.
