Superformance MKIII 427ci 5-Speed

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Superformance MKIII

This Superformance MKIII was ordered new by the seller from Hillbank Motor Corporation of Irvine, California in 2006. Finished in black over black leather, the car is powered by a 427ci side-oiler V8 paired with a Tremec five-speed manual transmission. Voss Performance of Fullerton, California installed the powertrain as well as heavy-duty sway bars, and other equipment includes 15″ Halibrand-style wheels, Wilwood disc brakes, ceramic-coated side pipes, dual roll hoops, and a wood-rimmed steering wheel. The seller has added approximately 4,500 miles to the car, which has been issued SB100 smog exemption in California. This Shelby Cobra replica is now offered with a soft top, a tonneau cover, a car cover, a hammer, a fire extinguisher, a build sheet, service records, and a clean California title that describes the car as a specially constructed vehicle with no model year.

The car was custom-ordered in black and finished in PPG materials using a two-stage process. Features include dual chrome-finished roll hoops, ceramic-coated side pipes, and a locking hood, trunk, and gas cap. The seller notes stone chips on the lower area of the nose, and the paintwork and exterior trim are shown up close in the photo gallery below.

Polished aluminum 15″ Halibrand-style wheels are mounted with three-ear knockoffs that have been safety wired. They are shod in 255/60 front and 295/50 rear BFGoodrich Radial T/A tires, and each corner is equipped with Wilwood disc brakes. The car also features a coilover suspension, and Voss Performance installed larger heavy-duty sway bars front and rear.

The interior features bucket seats with black leather upholstery and upper harnesses that were added to integrate with the latch-locking lap belts. The glovebox is lockable, and the battery as well as an electrical disconnect switch are located in the trunk.

A wood-rimmed steering wheel frames Smiths instrumentation that includes a reverse-sweep 180-mph speedometer, an 8k-rpm tachometer, auxiliary gauges, and a Lucas ammeter.

The 427ci side-oiler V8 was initially built by JMS Racing Engines of Monrovia, California and installed by Voss Performance. In 2008 the engine was rebuilt, serviced and tuned by RC Performance of Huntington Beach, California, at which time dynamometer results indicated that the engine produced a peak output of 465 horsepower and 493 lb-ft of torque at the crankshaft. Features include a forged crank, Ross pistons, cast-iron cylinder heads with Shelby American roller rocker arms, an Isky Racing Cams camshaft, a mechanical MSD distributor, a Canton Racing Products oil pan, ceramic-coated headers, and dual-quad Edelbrock 600-cfm carburetors mounted to a Ford Racing mid-rise intake manifold. The seller notes that the oil was changed in preparation for the sale and that the solid-lifter valves should be adjusted in approximately 800 miles.

Power is delivered to the rear wheels through a Tremec TKO-600 five-speed manual transmission. The rear differential features a 3.73:1 final-drive ratio, and additional photos of the underside are presented in the gallery.