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Vehicle Specifications and Contact Information


Road Runner
Mileage Or Exempt

Engine & Transmission

Engine Type
Engine Size
446ci V8
Engine Number
Transmission Type
3 Speed Automatic
Transmission Spec
A727 Torqueflite


Body Color
Green & Black
Body Style


Interior Color
Gray & Black
Seating Type
Shifter Type
Center Console

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Contact Details

Rotisserie Restored, Pro Street! Mopar 446ci V8 (820hp) 8-71 Blower, 727 Auto

1973 Plymouth Road Runner Pro Street

VIN: RM21P3G266996

The body of this Texas car was media blasted, corrosion-protected with steel phosphate, epoxy-sealed, prepped, and then finished in two-stage Sublime Green base and clear polyurethane paint. Rear-wheel tubs and a 12-point roll-cage were added and exterior body mods include narrowed and tucked front and rear bumpers, a laser-cut Chrysler Pentastar grille and scoop inlays, Halogen head and fog lights, shaved handles with keyless entry, integral front and rear spoilers, and rubber items from Year One.

Powering this beast is a professionally built, balanced, and blueprinted engine by Total Engine of Bloomington, Minnesota, based on a new Mopar 426ci block opened to 446 cubic inches with an Enderle-style scoop on dual Holley 750s atop an Indy 8-71 blower. Other highlights include an Indy 440-1 Max Wedge aluminum head and manifold combo, 81 JE forged pistons, Manley rods, an Eagle forged crank, Comp Cams flat-tappet blower cam, ATI damper and gear drive, MSD ignition, Milodon pan, pump, and windage tray. Dual fans and a BeCool radiator keep it all running cool. Coated TTI headers flow spent gases into dual Flowmasters and a fuel cell with Barry Grant pump provides fuel. Dyno-proven at 820 hp and 690 pounds-feet of torque, the wicked blown engine drives power through a 727 Chrysler transmission built by Pro Trans in California, incorporating all aluminum inside, a Turbo-Action 4,800 stall converter, Hurst ratchet shifter, and remote cooler.

Underpinnings include a new, powder-coated chassis, K-member, and control arms, plus Koni adjustable front and QA1 adjustable rear shocks, a braced Cal Track 4-link, and a Mark Williams narrowed Chrysler rear end with chromoly drive and axle shafts, and Richmond 3.911 gears on an MW spool. Brakes are MW 4-wheel discs, with dual calipers at the rear, plus a new master cylinder with line-lock and all-new lines. Wheels are Boyd Coddington billet-type polished aluminum units, measuring 18×9 inches front and 20×14 inches rear, surrounded by Mickey Thompson rubber.

The Road Runner's interior is new, featuring black custom panels and carpeting with grey velour/black leather bucket seats, AutoMeter gauges, legal seat belts, and power windows. Other outstanding updates include dual batteries, Painless wiring, new glass, and LED tail lights. Given its great presence and looks, this Road Runner was selected as a Feature car at the Mopars at the Mansion show, held at the storied Playboy Mansion, and it was a cover subject and centerfold feature car in Mopar Collector's Guide magazine.

A Mopar Collector's Guide Magazine, Dyno Sheet and nicely organized & laminated binder full of receipts and invoices from the build are included in the sale!

Go to to see over 100 HD photos and our in-depth video for this '73 Road Runner and over 200 other classics!

Special Starting Instructions:

Hood Release Inside Driver's Kick Panel
Battery In Trunk (open w/ remote release)
Battery Cutoff Underneath Passenger Rear Bumper Between Exhaust & License Plate
Key In Ignition (turn) Toggles In Center Console.
Rear Toggle Stays OFF, Other Toggles ON
Toggle Near Front Is Starter
Small Silver Lever at Tranny is For Park


New Mopar Performance 426ci V8 Mega Engine Block
INDY 440 Aluminum Max Wedge Heads
- Engine Casting #: 2468330-M
- Stroked to 446ci
- Blower Shop 8-71 Blower
- TTI Headers
- Modern Performance Block
- JE Piston
- Manley Rods
- Eagle Crank
- Complete Blower Cam (flat tappet)
- Gear Drive
- ATI Damper
- Balance Suffix and Blue Printed
- BG Fuel Pump
- 8:1 Compression Ratio
Dual Holley 4-Barrel Carbs
- 750 CFM
- Dual Feed
- Mechanical Secondaries
Freshly Rebuilt A727 Torqueflite 3-Speed Auto Trans (#: PK3631867 4946 3070)
- Built By ProTrans
- All Aluminum Internals
- Reverse Manual Cheetah Valve Body
- Ray Bestes Clutch
- High Energy Front & Rear Bands
- Hughes Heavy Duty 3000 Stall
8 ¾” Mopar Rear End
- Ratio: 3.93:1 w/ Spool
Front Torsion Bar Suspension
Rear Leaf Spring Suspension
- Cal Tracs
- Front Disc
- Rear Disc (dual calipers)
3” Exhaust:
- Dual Exhaust w/ Flow Master Mufflers
- Custom Electric Cutouts (Nicely Mounted)
Key Components:
- Victory Chromoly Driveshaft
- Dual Driveshaft Loops
- Huge Aluminum Radiator w/ Dual Electric Fans
- MSD Distributor
- MSD Wires
- MSD Coil
- Nicely Painted Engine Bay
- Shaved & Painted Firewall


Rotisserie Built!
Sublime Green Paint Finish w/ Road Runner Body Stripe Is Gorgeous
Custom Cutout Hood w/ Matte Black Trim
Hood Pins
Hood Fits Great w/ Fenders
Shaved Doors!
Remote Door Poppers
Emergency Door Poppers In Wheel Wells
Doors Fit Great w/ Body
Trunk Fits Great w/ Quarters
Frenched-In Taillights
Custom Bumpers
Remote Trunk Popper
Custom Deck Lid
Inside Trunk Is Clean
- Custom, Signed Closeout Panel
- Tubbed!
- Nice Weather Stripping
- Aftermarket Performance Fuel Cell
- Twin Custom Chrome Battery Boxes
- Huge Barry Grant Fuel Pump
- Steel Braided Lines
- Beautifully Painted Bottom Side of Deck Lid
Undercarriage Is Beautiful
- Body Color Painted Throughout
- Immaculate Underside!
- Back Halfed
Front Wheels: 18” – Boyd Coddington 5-Spokes
Rear Wheels: 20” – Boyd Coddington 5-Spokes
Front Tires: 28x10R18 - Mickey Thompson
Rear Tires: 31x18R20 - Mickey Thompson Sportsman


Restomod Style Gray & Black Interior
Full Roll Cage
Aftermarket Suede Bucket Seats
Floor Shifter
Center Console
Completely Custom Embroidering Throughout
Rear Seat Chrysler Logo Embroidering
Door Panels are Beautiful
Suede Headliner Is In Great Shape
Carpeting Is Clean
Stock Steering Wheel
Aftermarket Gauge Housing
Autometer Performance Gauges
Fire Extinguisher Beneath Passenger Seat
Power Windows!

Don't Miss Out! Call Tom 7 Days a Week at 248-974-9513!