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$23,900 2003 Factory Five Racing Challenge Car


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Posting this for Dave Riha


$23,900 2003 Factory Five Racing Challenge Car


I am selling my 2003 Factory Five Challenge Car with extra set of wheels and two transmissions. I am the original builder, owner, racer. It has been a very competitive car. It has had its home in the Factory Five showroom and warehouse since it was built. It is in great condition, and has never been wrecked. It is very clean and very well built. The car meets the previous rules that do not include the power and brake upgrades. This car has an passenger seat. To make this vehicle physically street legal it would need the lighting wired up, a horn and a windshield added. The car is located in Wareham Massachusetts. Message me or post any question.



5.0L Ford V8

1.7 Ratio Roller Rocker Arms

Aluminum Under-drive pulleys

Stamped Valve Covers

Canton 7qt Front Sump Oil Pan with windage tray

Vented aluminum oil overflow tank

AFCO Aluminum Radiator

Spal 18” Cooling Fan with on engine thermostat trigger

JBA 1 5/8 Stainless exhaust headers

Polyurethane Energy Suspension motor mounts

Mobile One Synthetic Oil used



Well organized, easy access simple wiring harness

Ignition Coil mounted on engine

Trunk mounted battery

Cockpit mounted cut-off switch

Headlights and Brake lights wired in

Turn signals and license plate light mounted but not wired in

Gauges-Auto Meter Ultra-lite Mechanical Tachometer, Fuel level, Oil Press, Temp

Easy Read on dash clock

Keyed ignition switch



Enkei RPO2 5 Spoke Lightweight 20lb Wheels (17"X9" 5/114.3 w/35mm offset)

Carbotech Panther XP Brake Pads

Fox body 11” Front Rotors

1994 Cobra 10.5” Rear Rotors and Calipers

1994 Cobra master Cylinder

Brake Bias valve in cockpit

Castrol SRF Brake Fluid

Front Brake Air Cooling Ducts

3-Link Rear Solid Axle w/Panhard bar

Koni Front shocks with 700lb Springs

Bilstein Rear Shocks with 500lb Springs

Toyo RA1’s



Fox body power steering rack

Fox body steering pump with extended reservoir neck

Redline Fluid



T5 Transmission with Steel Throw-out shaft

Deist Safety Bell housing Blanket

Hand shaped B&M Ripper Shifter arm for improved driver comfort

Adjustable aluminum clutch quadrant

Spec Clutch with Steel Flywheel

Steel Driveshaft

2.73:1 Ratio Ford 8.8 Axle with welded suspension brackets and axle tubes

Black Powder Coated Chassis

Driveshaft Loop Welded in

Side intrusion plates



Fuel Safe SM122-AFF Aluminum 22 gallon Fuel Cell

Trunk Fill System

Large Fuel Funnel fit to Chassis

15 second fill for 5 Gallons



Competition Windscreen

Hood scoop painted black, not cut out for improved aero

Driver accessible Fuel cut off switch

In Car Lap Timer(needs trackside transmitter)

Fire Bottle fire suppression system

Hand held extinguisher accessible by driver

Aluminum Kirkey Driver and Passenger Seats

Simpson Seat Harness’s (out of date)

Great visibility with convex side mirrors and curved center pedestal mirror.

Easy paint touch up with solid red paint with decal add-ons

Easy touch up flat black exhaust coating

Custom Designed Heavy Duty Side Pipe mounts

Padded steering wheel that is easy on hands for long races


Additional Details

Always cleaned thoroughly and checked for damage after every race

1st Race was June of 2003 with normally top 3 race position finishes

NASA race log book included

Easily meets weight rules

To make street legal the car would need the blinkers and license plate wired, a horn installed, and a windshield purchased and installed. The chassis has mounts for the windshield to mount up.



Enkei RPO 5 Spoke Lightweight 20lb Wheels with used Toyo RA1’s

Rebuilt ready to use T5

T5 that needs rebuilding


Thank you,

David Riha - dave(dot)[email protected]




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