1970 PLYMOUTH HEMI GTX PRO TOURING
“ALPHA X”

Engine: 572 Aluminum Hemi from Muscle Motors/HP Performance 675 HP
Induction: Hemi 6 Pack Holley Carburetors
Ignition: MSD
March Performance Serpentine System
Cooling: Mark 7 Radiator
Fuel: Aeromotive
Transmission: 727 Automatic Gear Venders Overdrive
Differential: Scott’s Driveline-Dana 60 3.73 Gears
Exhaust: TTI Complete Exhaust System
Front Suspension: RMS Tubular K-member Coil Overs
Rear Suspension: RMS Street Lynx
Brakes: 13″ Wilwood 6-Piston/4-Piston Drilled and Slotted/Hydroboost
Wheels/Tires: Boze 20″X 10″ Rears 19″X 8″ Fronts
Diamond Back Red Line Performance Tires
Paint Color: Sherwin Williams Rod & Restoration-PCCL11 Rallye Red”
Paint Supplies: Sherwin Williams Automotive Finishes
Body and Paint: Candy Shop/Grabill Automotive/T&D Motorsports
Decals/Signage: Hightech Signs
Interior: Interiors by Thomas/Big Hemi
Gauges/Dash: Instrument Specialties/Big Hemi
A/C-Heater: Classic Auto Air
Stereo: Kenwood
Polishing: Lee Scott
Chrome Plating: Reckon Plating
Extras: Custom Billet Six Pack Hemi Air Cleaner, from HP Performance, Aluminum Block From Indy Cylinder Head, Air Grabber, LED Taillights, Oracle H4 Conversion Halo Headlights, Custom Upholstered Trunk, Painless Wiring, Hushmat.

Considered the gentlemen’s muscle car, this Plymouth GTX has style and attitude by the bucket load. The car started life as an original 1970 Plymouth GTX 440 Six Pack “V” Code. With the original powertrain long gone, this GTX was the perfect candidate for a Six Pack Hemi Pro Touring Custom. Meet the Alpha X!

Given this is a Pro Touring Star, let’s begin with the performance bits. The engine is a 572 Aluminum, Stroked Hemi custom built by Muscle Motors Racing, making 675 HP. Sitting on top of the Hemi and under all the Air Grabber hardware is a thirsty Six Pack induction system. We custom fit the air grabber assembly and plumbed the nitrous kit to hide it under the hood. With this GTX being an original “V” code, we decided to stay with the Six Pack theme, and a HEMI Six Pack has a nice ring to it. The Gear Venders Overdrive 727 Transmission kit with a pistol grip shifter sticking out of the tunnel will pace through the gears with flair and allow a good cruising RPM on the highway . Putting the rubber to the ground is a new DANA 60 from Scotts Driveline, with a drilled and slotted Wilwood brake kit, and Reilly Street Lynks rear 4-link/Coild Over set up. The Dana 60 is beefed up with 35 spline axles, a Trac-Lok Posi, and 3.73 gears. Up front is a complete AlterKtion/power steering/sway bar with a front tubular K member and adjustable coil over shocks. The suspension on this car is state-of-the-art. Try getting an original 70 GTX to handle this good at 100+ mph speeds. The brake system is supplied with 6 piston drilled and slotted Wilwood Brake’s and Wilwood Master Cylinder Kit, with Hydroboost power assist. Hold on to the Flaming River tilt column steering wheel and enjoy the journey.

The spectacular wheels are provided courtesy of Boze 20” X 10” in the rear wells, and 19” X 8” up front. Diamond Back custom Red Line tires will help with the traction and handling. This wheel and tire package is second to none with its combination of performance and style.

Helping the Hemi breathe is a complete TTI Exhaust System, with polished ceramic coated headers, and a 3” X pipe exhaust system with Flowmaster Super 44 Mufflers, and 3” tips. A Doug’s Headers Electric Exhaust Cut out kit brings this Hemi to life with a touch of a button.
When it comes to the fuel, cooling, ignition, and electrical components, only the industry’s top companies were utilized. Fuel for the Hemi is supplied by Aeromotive. The fittings and lines, which plumb the fuel system, are from Summit Racing, JEGS High Performance and Inline Tube. Cooling is performed by a large aluminum radiator with auto electric fans from Mark 7 Radiator. I would not anticipate any overheating troubles with this fire breathing monster. MSD Digital 6 box with Blaster Coil, Billet Distributor, and new plug wires fire the big Hemi. Painless wiring kit was professionally wired throughout the car, and March Performance Serpentine System with 105 amp alternator, and power steering. If you notice inside the engine compartment, time was taken to give it a very clean look. All of the inner panels were filled and smoothed, and the plumbing and wiring was nicely hidden inside the inner fenders to get that no clutters feel and look.
The exterior of this project began as a stock 1970 GTX. After little discussion, the car was entirely stripped and media blasting was used to come down to the bare metal. Sheet metal was replaced and all new glass was inserted around the cabin with help from AMD. Hours and hours of body work were performed on the panels to get them very straight. The exterior panel gaps are done to laser straight perfection, and are in perfect alignment. With help from the rotisserie the car was painted Rallye Red from the Sherwin Williams/Planet Color Rod and Restoration line. The 2-stage urethane looks miles deep. The chrome, of course, is straight off of the showroom floor, and shines brilliantly against the red finish. Check out the custom blacked-out GTX front grille assembly with Oracle Halo H4 conversion headlights peeking at you with the Red eyes. When building a custom car like this, you can’t forget all of the small details. Something as simple as sandblasting and re-painting a hood latch just adds more perfect fit and finish to a car. Powder coating the suspension pieces adds beauty and durability. You will also notice all of the stainless fasteners throughout the entire car. Stainless bolts were used on the project for long life.

The interior takes only a few liberties with the original design, but I promise you’ll love the results. The biggest modification are those gorgeous bucket seats, which have aggressive bolsters that are probably mandatory in a car with this one’s capabilities, but they also offer red stitching that is so subtle that you almost miss it, but it works perfectly with the red bodywork and redline tires. Standard black carpets, new door panels, and a freshly upholstered back seat are pretty much the way the factory intended, and even the dashboard is close to OEM-spec. The factory gauges were rebuilt and given slick brushed aluminum faces. A Flaming River D steering wheel and billet pistol grip shifter feel right in your hands without being distracting. The all-new Classic Auto Air HVAC system was integrated with the factory sliders and vents, and the system works well enough to chill the black interior down to meat locker levels. A powerful AM/FM/CD/iPod stereo system works in conjunction with about an acre of hush mat to create a pretty impressive sound stage for a ’60s car, and all the speakers have been cleverly hidden throughout the interior to keep it looking stock. The trunk is fully upholstered in black carpets with a custom enclosure for the battery.

The Alpha X greatly improves every single aspect of the original, but keeps all the critical things that make these cars so special. Respect is what makes this car remarkable, and respect is what it demands, both from the driver and from anyone unfortunate enough to try to give it a run on the street. It’s brutal, but it’s also exquisitely detailed with a no-compromises philosophy that shows in every single aspect of the build.