billet inc.

Billet Alloy Rotary Engines

With an extensive background in motorsports, Darren has been designing and manufacturing high precision components for all forms of motor sports for decades.

We strive to deliver cutting-edge solutions and innovative designs that are constantly pushing the limits and setting new standards in Rotary Performance. We are passionate about quality and performance Using our proven design and manufacturing expertise, to deliver outstanding results for our customers.

Specialising in high performance CNC machining, we manufacture our Patent Pending range of Billet Alloy Rotary Engines and associated products, from custom to aftermarket OEM for many makes and models.

Our Billet Alloy Rotary Engines can be found in many of the fastest rotary powered drag racers in the world today.

what our products offer


Our patent pending Rotary plates are world class, reliable. We have many customers that have enjoyed the strength and reliability of our engines and components, many of whom have done so after enduring much cost and many hours replacing cracked and worn OEM parts.


Due to the patent pending construction we have eliminated the chance of plates cracking which can put the driver and spectators at risk of an avoidable accident.

Ease of maintenance/
Parts backup

Our plates are designed to have replaceable wear face inserts, which can be easily replaced upon wear or damage even at the track, eliminating downtime.