Kevin DiOssi
August 11, 2011

Since Paul was going with a King of the Road theme, obviously he would need to have a substantial powerplant to move the Mustang with an appropriate quickness. To that end, Paul opted for a 427ci, aluminum-block side oiler to not only cut down on weight, but to provide a massive amount of cubic displacement. John Kaeserman of Express Engines (Deland, Florida), which builds 1,000hp offshore powerboat race engines as well as trick street rod powerplants, stroked the FE to 482 ci, and topped it of with CNC-ported Edelbrock FE aluminum heads, and a Blue Thunder 2x4 intake. Paul had Quickfuel Technology flow and tune the two Holley carburetors.

"I had asked John to build me a motor I could run on the street with pump gas, turn on the A/C, and drive down the road comfortably, but still give me big power," says Paul.

The dynamometer showed 575 hp and 573 lb-ft of torque. Paul tells us that a single four-barrel would have provided more horsepower, but the 2x4 setup sure stops the crowd. A March pulley system helps motivate the power steering pump, 100-amp alternator, and polished A/C compressor.

To ensure a proper cruise rpm, Paul backed the wickedly wonderful FE with a Tremec Transmissions TKO five-speed, and a hydraulic clutch bearing eases the pedal effort. Under considerable coercion from the manual gearbox, the Ford 9-inch rearend turns 31-spline axle shafts, a Traction-Lok differential, and 3.25 cogs. Unimpressed with the rigidity of the Mustang's 40-plus-year-old chassis, Paul welded in subframe connectors and connected them with an X brace. Wilwood binders and 17-inch vintage Shelby-style wheels round out the modifications.

"I have to say the car is a blast to drive with the steering and braking of a new car, but with the looks of a vintage Shelby, it draws a crowd were ever it goes," notes Paul. With the awesome looks of one of the greatest Shelby Mustangs ever produced, combined with the latest in aftermarket performance products, this could just be the King of the Clones.

In creating a car guy's dream, Paul would combine the style of a vintage Shelby with a modern day suspension, big brakes, and a huge motor with lots of power, but streetable enough to run on pump gas and still wow the crowd at car shows

The Details

Paul Montgomery's '68 Mustang Convertible


  • 482ci (427 FE) Robert Pond aluminum side oiler block, built by John Kaeserman at Express Engines (Deland, FL)
  • 4.250-inch stroke
  • 4.250-inch bore
  • Scat crankshaft and forged H-beam connecting rods
  • JE forged pistons with Sealed Power rings
  • Edelbrock Performer RPM FE heads, CNC-ported
  • Custom Comp Cams hydraulic roller camshaft
  • Dual Quickfuel 750-cfm four-barrel carburetors, 22-gallon stainless steel fuel tank
  • 575 hp and 573 lb-ft of torque
  • March serpentine pulley system
  • Griffin radiator


  • Tremec TKO-600 five-speed manual
  • Quicktime steel bellhousing
  • American Powertrain clutch


  • Heidts 9-inch rear axle housing with a 9-inch factory third member
  • Traction-Lok differential
  • Richmond 3.25 gears
  • 31-spline axles


  • Sanderson ceramic-coated long-tube headers, 1¥-inch primaries, 3-inch collectors, 2-1/2-inch pipes
  • MagnaFlow mufflers


  • Front: Coilover springs, tubular control arms, 1-inch antisway bar, TCP shock tower brace and X subframe connectors, power rack-and-pinion steering
  • Rear: Coilover springs, Heidts four-link suspension with Panhard bar


  • Front: Wilwood disc, four-piston calipers, 12-inch drilled and slotted rotors
  • Rear: Wilwood disc, four-piston calipers, 12-inch drilled and slotted rotors


  • Front: Vintage Wheel Works V50, 17x8
  • Rear: Vintage Wheel Works V50, 17x9.5


  • Front: Bridgestone Potenza RE760 Sport, P245/45R17
  • Rear: Bridgestone Potenza RE760 Sport, P275/40/R17


  • Stock black upholstery restored by Steve McNicole, Shelby wood-trimmed steering wheel, wood-trimmed dashboard and console, Shelby shift knob, Alpine head unit, Kicker 12-inch subwoofers, ididit tilt steering column, Dynamat sound deadening, Shelby 140-mph speedometer, Shelby 8,000-rpm tachometer, Stewart Warner Greenline console gauges, Vintage Air


  • Shelby/Maier Racing fiberglass front fascia, hood, tail spoiler, taillights; Shelby gas cap, emblems, and sidescoops; new convertible top by Steve McNicole, custom red paint in Dupont Chromabase base/clear

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