Factory Five Racing GTMThe GTM is an original design conceived and executed entirely by the Factory Five Engineering department.


The design is inspired by any number of todays super cars but in every way (except perhaps cost) this car is an original, true 200+ mile per hour super car.


The car’s drive train, suspension and steering are Corvette parts and the Trans axle is a Porsche Audi Part.


 With proper gearing the car is capable of 200+ mph top speeds and several examples have successfully run in 24 hour enduro races where every ounce of its capabilities are put to the test.


The Base Price of the GTM is $19,990.00 US. There are many options that can be added to these cars and the best way to gain a complete understanding of what your “Ideal Cobra” would cost to build is to sign up for the WCC mail list using the blue panel on the right. When you do so you gain access to subscriber only in-line interactive work sheets that allow you to option your Cobra as you  envision it and as you do so the spread sheet will price your build for you.


Experience tells us that IF you stick to the plan you embodied in the spread sheet, and that’s hard to do, you will build the car for within $1500 of what the sheet shows. (assuming of course that your estimates for Paint etc are in line with costs in your area


Complete list of Included parts in the Base kit follows. Note that Items listed in Red Text are parts that Factory Five is required by the Cdn Federal DOT to remove from the kit in order to allow them to be shipped into Canada. All of the removed parts are readily available from alternate sources.


  • Frame: Computer (Solidworks® CAD) designed, ultra-rigid space
    frame.  Mig-welded in computer designed jigs using precision laser-cut high
    strength mild-carbon steel.  Design incorporates low center of gravity, with
    high strength.

    • Surface finish is powder-coated in beautiful gloss black finish
    • Integral 6 point roll cage with roof-contoured bars for additional
      headroom in cockpit
    • Safety designed collapsible steering column, side impact bars,
      footbox steel surround, and front/rear  crumple zones.
    • Steel floor pans and integrated sheeted flat bottom design aides
      aero/downforce and improves safety.
    • Welded mount plates “ready-to-bolt-on” for engine, transmission,
      pedal box, radiator, steering gear, suspension, and shift linkages.
  • Body:  Hand laid 3/16” laminate composite body panels made
    with vinylester resin and black gel coat.  Hinged and lined rear hatch, doors,
    and nose. All parts are trimmed on a Fanuc RPT 5 axis robotic trimming

    • Body includes main cockpit and rear section with DOT glass
    • Nose and nose section liner, hinges with mount plates and gas strut
      hinge supports.
    • RH, LH doors and door liners and hinges that mount to frame
    • Rear molded hatch and liner with DOT glass window, bronze bushing
      hinges and frame mounts, gas strut supports
    • Includes secondary body fasteners assembly.
      • ¼” rivnuts, and included rivnut tool
      • Aluminum to body rubber seal, push-on trim
      • Adhesive backed and foam weatherstrip
      • Body fasteners
  • Chassis Aluminum Panels: Includes over 80 CNC cut, pre-formed
    6061 series aluminum panels for cockpit, trunk, radiator surround, engine bay
    and nose/splash guards.

    • Over 1200 pre-packaged rivets1/8” short & long, 3/16” short &
    • Nose section and front-end aluminum assembly
    • Radiator surround aluminum assembly
    • Cockpit and footbox aluminum assemblies w/block-off plates and patch
    • Aluminum diffuser strakes
    • Aluminum rear bulkhead, access panels and tank covers
    • Engine bay aluminum assembly with rear splash guards
    • Under-carriage aluminum assembly
  • Front & Rear Suspension:  High quality Koni brand shocks
    and coil-over kits complement Corvette upper and lower control arms in front and
    rear.  We include adapter brackets and grade-8 mounting hardware. Rear axle
    shafts and adaptor kit also included.  

    • Koni front damper kit (pair), shock (Koni 30-5436), threaded
      hat/coil-over kit, springs, fasteners and spacers
    • Koni front damper kit (pair), shock (Koni 30-5436), threaded
      hat/coil-over kit, springs, fasteners and spacers
    • Front and rear control arm hardware
    • Rear CV components, including CV shafts, inner and outer boot kits,
      wheel spacers and lugnuts
    • Transmission mount
  • Steering and Shift linkage kit:  High performance manual
    steering rack with tie rod end kit, fasteners, bushings and complete shift
    linkage and LS1-G50 adapter kit (adapter plate, flywheel, pilot bearing) shift
    linkage parts from transmission to shifter rod.

    • 15:1 Manual rack and pinion steering rack
    • Steering rack bushings and sleeves
    • GTM adjustable tie-rod end kit
    • Steering column adapter plate and rack mounting hardware
    • Upper steering shaft, male DD shaft, and universal joints,
    • Steering bearings and hardware
    • Steering and shifter linkage kit including 4 linkage shafts, spring
      pins, u-joints, flanged bearings and fasteners
    • Embossed F5R steering wheel with fasteners

Fuel/Brake/Pedal Box Systems:  GTM kit comes with a Wilwood clutch and brake pedal assembly, triple master cylinders,
brake lines and fittings. Kit also includes a ton of parts to adapt the brakes
and twin fuel cells from the Corvette to the GTM chassis.  Kit

    • Wilwood pedal box, brake and clutch
    • Master cylinders ¾” bore (Clutch and Brakes)
    • Light switch and fasteners
    • Clutch slave cylinder
    • Stainless steel hoses, crush washers, banjo bolts and
    • Aircraft style fuel filler caps (dual sides) w/filler necks and hose
    • Pre-flared fuel lines, adapters, and mounting brackets
    • Braided stainless steel fuel tank cross-over hose with AN fittings
      and fasteners
    • Fuel tanks components, 3/8” hard lines, high pressure hoses, clamps
      and fasteners
    • Pre-flared brake lines, T-adapters, male and female unions, mount
  • Cooling System/Parts: The kit parts include everything you
    need to adapt the GM radiator like mounting hardware, radiator hoses, and all
    necessary fasteners.

    • stainless steel radiator hose kit
      • ¼” radiator to engine
      • ½” top of overflow to radiator
      • ¾” overflow to engine
      • 5/8” overflow to engine
    • Fasteners to include insulated clamps, hose adaptors, and hose
    • 50” beaded aluminum tube, radiator send, 1.25” diam
    • 50” beaded aluminum tube, radiator return, 1.5” diam
  • Misc. Engine Accessories/Exhaust Components:  The GTM kit
    includes full exhaust system, and a host of misc parts and assemblies you’ll
    need to install the Porsche transmission and Corvette engine.

    • Intake relocation assembly
    • Engine mount components, engine mount spacer, oil temp bypass, oil
      temp block-off, fasteners
    • Air filter components, air filter, hose, hose clamps, and silicone
    • Transmission mount, removable frame, powdercoated
    • Transmission mount components incl., speed sensor bracket and
    • 1990-1998 G50-LS1 Transaxle adaptor kit
      • G50 adaptor plate
      • Pilot bearing and fasteners
      • G-50 linkage arms and fasteners
    • Full exhaust system minus manifolds for either 1990-200 OR 2001-2004
    • 1997-200 engine exhaust system OR 2001-2004 engine exhaust system

      • GTM H-pipe
      • Catalytic converters, LH/RH
      • Gaskets and H-pipe hangers and hardware
      • Exhaust tips
  • Misc Electrical Assembly:  GTM kit parts are included to adapt the Corvette computer (we will re-program it for free). We include a vast array of electrical parts, along with a full chassis wiring harness to make the dreaded electrical work easier to manage.
    • 18 circuit chassis wiring harness and wire harness/computer mounting
      hardware with fasteners.
    • Cardboard box w/return label for computer reprogramming
    • Alternator relocation components
      • Relocator bracket
      • GTM 6 rib serpentine belt
      • Pulley mounts, wheel and fasteners
      • Tensioner pulley relocation bracket and fasteners
    • Battery hold down kit, ground strap and 2 lug battery cables
    • Insulated line clip hardware and fasteners
    • Misc. electrical components, 16 gauge wire, Red, Blue, Black, White,
      Grey, relays, sockets, fasteners, wire loom and serrated grommeting
  • Complete Interior Accessories:  The GTM kit comes with a full
    interior including, sport seats, carpeting, suede headliner and roll cage
    covers, covered interior panels, door panels, engine cover, rear bulkhead, dash
    assembly and carbon fiber dash face, complete custom Factory Five gauge set, and
    directional vents for heating and cooling.  The covered interior pieces contrast
    with the carbon fiber gauge pod and functionally elegant layout of the
    interior.  Standard parts include…

    • Sport Seats, High-back w/side bolsters, and hardware, Black
    • Complete Dash console, switches and gauges
      • Dash center console
      • Carbon fiber gauge pod, Driver side
      • Vinyl covered passenger side dash pod
      • Adjustable dash cooling/heating vents
      • Polished aluminum Fog lights and hazards switches
    • Complete Custom Factory Five Gauge set
      • Speedometer, electronic 200 mph
      • Tachometer, 8,000 rpm
      • Oil Pressure Gauge, 0-100 psi
      • Water Temp Gauge, 100-250 F
      • Fuel Gauge
      • Adapters, resistors, ring and butt connectors
      • Green and Blue dash indicator lights
    • Interior rear view mirror, 8” windshield mount
    • Shifter handle, titanium shift knob and ring/boot cover
    • GTM embossed steering wheel, 330 mm diam. Includes boss kit, and
      fasteners (listed previously)
    • Suede covered interior engine cover (bulkhead) and fasteners
    • Seat belt hardware
    • Covered and molded door liners, LH/RH
    • Headliner, grey, foam-backed
    • Interior roll bar padding, front, drivers and passenger sides
    • Rear interior window, 1/8” Lexan, cockpit to engine bay with gaskets,
      weatherstrip and tool
    • Door sill aluminum cover
    • Power window switches and kit
    • Door frames, single claw door latches (interior) and
    • Interior door handles w/lock, linkages and hinges (listed
    • Suede interior panels for rear cockpit wall, transmission tunnel,
      cockpit side walls/footboxes
    • Full interior carpet set, black
  • Exterior Accessories and Lighting:  The stunning exterior
    lines are complemented by high-end components that finish off a beautiful and
    functional exterior.  GTM kit comes with the following exterior parts and trim

    • Carbon fiber exterior rear diffuser (downforce generating)
    • Headlamp bucket assembly with lexan cover, composite bucket and
    • Halogen headlight units with separate high and low bean lenses and
      headlight plug kit with terminals and seals
    • Fog lights and fog light mount kit w/fasteners
    • Front turn signals and hardware
    • Dual rear red tail-lights stop/tail and reverse/turn, w/bulbs, pods,
      and mounting hardware
    • License plate bracket (rear) and fasteners
    • GTM Badges Assembly includes rear deck lettering, ceramic nose badge
      and GTM tail logo badge
    • GTM main body mesh assembly
      • Radiator inlet and outlet, perforated screen mesh
      • Front brake duct, perforated screen mesh, LH/RH
      • Rear brake duct, perforated screen mesh, LH/RH
      • Side Intake perforated screen mesh, LH/RH
      • Rear hatch cooling vents, perforated screen mesh LH/RH
      • Exhaust vent perforated screen mesh, LH/RH
    • Rear glass hatch/window, hinged, DOT safety glass
    • Rear Hatch fasteners and latch, handle, pins, release cable and
    • Rear side ¼ windows, lexan LH/RH
    • Side windows, glass DOT power windows
    • Window track hardware, door frames, fasteners and window track
    • Windshield wiper assembly parts, reservoir, 22” wiper arms/blades,
      linkage, tubing, jam nuts and spacers, wheelbox, brackets and fasteners
    • Twin flush-mount fuel caps (listed in fuel system)
  • Fasteners:  Over 1500 top quality zinc plated, chrome and
    stainless steel USS and SAE fasteners, numbered and packed individually by
  • GTM Assembly Manual:

    assembly manual that is over 600 pages long.



Contact Info

By Phone 250 777-3031

By E-Mail