Horsepower World the Exclusive Australian Factory Five Racing Distributors. We can supply you a kit to build your own car or we can tailor build a complete car to suit your requirements for Street, Racing, Show or Business Promotion / Corporate. (Pictures used are for reference only.)


(## The Mk4-R Challenge car is the competition version of our best selling Mk4 Roadster. The car takes the Mk4 Roadster to a more serious competition level and is engineered to be used in wheel-to-wheel road racing, drag racing, and is eligible for NASA’s Factory Five Challenge Series. THIS IS NOT LEGAL FOR ROAD REGISTRATION ##)


Leader of the Pack!

The Factory Five Mk4 Roadster accurately maintains the essence of the original car, but uses modern technology, parts, and materials to improve performance and comfort. The Factory Five Mk4, with the 427 body style, is the best engineered, best performing, and best selling replica in the world.


With an absolutely Insane Power to Weight Ratio (roughly 1000kg for a complete car) combined with State of the Art Spaceframe Chassis Design & Construction. This will be one ride that will be sure to excite. This is a car that can be driven on a nice country drive or would be equally at home on a race track, blowing away the competition.


Nothing else will compare to a Hand Built Supercar.. Say goodbye to the Expensive Euro Sports Cars at every chance you get.


Built to the Highest Standard

We have been in the Performance and Racing Industry officially since 2006 and with experience in the industry many years before this. Over this time we have built many high profile cars and engines for clients across the world.


We have now teamed with Factory Five Racing & OZE Rods from the USA with Exclusive Distributorships and using our extensive industry experience to bring you the best hand built cars available. Using the highest quality components, every part is finished to exact standards in house at our Brisbane facility.


Built to your Requirements

# Do you have a theme or style in mind? Let us know?

# Any Colour Choice

# Various Engine Options (Contact us with any special engine requirements. We can do the awesome 5.2 Aluminator by request too.)

# Various Wheel & Tyre Options

# Late Model Mustang Brakes or Wilwood Big Brake Kit

# Various Suspension Options (IRS is available as an option by request)


High Level Custom Hand Built Factory Five Mk4-R Roadster (AC Cobra)


What's Included?:

  • Complete Factory Five Racing Mk4-R Body & Chassis Package
  • Choices of High Performance Engine & Other Custom Options Avail.
  • Includes Tremec TKO 600 Manual Transmission & Performance Clutch
  • KONI Adjustable Suspension
  • Late Model Mustang Brakes (Wilwood Big Brake Kit Optional)
  • 3 Link Rear End (IRS Optional)
  • MOSER Engineering. Custom Built 8.8 Differential
  • Vintage Halibrand Replica Wheels, 17” X 9” Front and 17” X 10.5” Rear & Mickey Thompson Tires, 245/45R17 Front and 315/35R17 Rear (Racing Wheels & Tyres Available)
  • Rack & Pinion Steering (Power Steering Optional)
  • Race Seats & Harnesses & Metric Guages & GPS Speedometer.
  • Premium Electrical & Fuel, Oil & Fluid Plumbing
  • Premium Fittings, Fixtures Throughout
  • Chassis & Suspension Parts Powdercoated
  • Every Component Hand Finished and Assembled to the Highest Standard.


Engine Option Details:

302ci / 351ci Windsor

# Our 302 or 351 Windsors are an Entry Level Fully Reconditioned package with all good quality components including a mild performance hyd roller camshaft. Both options are great street performers including a modern twist with EFI to help with Economy/Performance/Emissions.

The 302 will be a great performer for daily driving and cruising.

The 351 will be as above although a bit more torque if you want to play occationally.


Our Custom Built 427ci Windsor

For the people who want the Actual 427ci engine to go with the 427 badge.

This is our premium custom built EFI 427ci Windsor package.

Probably not for the faint hearted this engine will pull hard right up to the redline.

With options of 500HP - 550HP right up to a massive eye watering 600HP.

(Of course we can do something more serious again if you desire).

Dart Block, Forged Internals, Hyd Roller Valvetrain, CNC Ported Alloy Heads. This has all of the fruit, making a tough sounding, strong performing, awesome package for this car, while still having nice enough manners to drive on a regular basis.


5.0 Ford Coyote (Gen 3)

A mild mannered modern street weopon with plenty of power to play. This is a great way to go with a nice sounding performance package. All of the latest engineering to give you performance and economy with that modern car feel. A truley great all-rounder in these cars.


LS3 6.2 GM 

For the Non Ford Purists the LS is a great way to go with similar modern aspects as the Coyote, although here in Australia the LS market is much larger, which means there is almost endless parts and accessories available for these engines. 

The LS3 is a 6.2ltr 430HP powerhouse, straight out of the box and will make a very nice addition to these cars if you dont mind having GM power.

Obviously if you want that tough sounding camshaft or any other performance parts we can help you out.


LSA 6.2 Factory Supercharged GM

Similar to the LS3, although this is a Factory Supercharged 6.2ltr Rocketship.

Possibly the best Bang for Buck package available. The LSA pumps out 556HP straight out of the box. This would suitable to drive with perfect street manners on a daily basis, although will be blisteringly