About Us
C.H.I (Cylinder Head Innovations)

Australian-Made Cylinder Heads & Performance Manifolds for
Racing and Street Applications

Who We Are

C.H.I (Cylinder Head Innovations) is an Australian manufacturer of high-performance cylinder heads and intake manifolds for V8 racing and street-performance engines. With more than 50 years of combined industry experience, we provide precision-engineered components trusted by professional engine builders, race teams, and performance enthusiasts worldwide.

Our History

A Strong Foundation Built Over Five Decades

C.H.I’s story begins in 1972 when Neville launched HeadCraft, a machining and cylinder head porting business pioneering early flow-bench technology in Australia.

After selling HeadCraft, he founded ProHeads in 1986, specialising in performance machining and cylinder head development. Scott joined in 1992, growing the business and strengthening its technical capabilities.

From ProHeads to Cylinder Head Innovations

In 2009, Neville and Scott purchased C.H.I (Cylinder Head Innovations), expanding it into a globally recognised manufacturer of race-proven, CNC-machined cylinder heads and manifolds.

Our Motorsport Background

Racing Experience That Drives Design

Neville competed in EH Sports Sedan and HQ Sports Sedan categories throughout the 1970s and 1980s, while Scott advanced from go-karts to Formula Ford, the Konica Series V8 Supercars, and the Australian NASCAR Series. This deep motorsport heritage directly shapes every C.H.I product.

Collaborative Engineering Excellence

Scott leads the engineering and design team, working alongside renowned cylinder head and engine specialists across the world. Contributors such as Jon Kaase, Dave Storlien, Phil Martin, Leon Withnell, and Andrew Kostecki have helped refine multiple generations of C.H.I products.

Proven Performance & Global Recognition

C.H.I has earned significant success in major engine performance arenas, including multiple wins and top results in the U.S. Engine Masters Challenge. Engine builders across Australia, the United States, and internationally rely on C.H.I products for consistent horsepower, reliability, and performance at the highest levels.

Proudly Australian Made

Locally Sourced Castings – Premium Global Components

All C.H.I cylinder heads are Australian made, with machining and assembly performed entirely in-house.

  • Castings are sourced locally for superior material quality
  • Springs and retainers are sourced from the USA
  • Valves are sourced from Argentina

Our commitment to premium materials ensures unmatched durability and precision. 

Our Manufacturing Capabilities

State-of-the-Art CNC & Performance Testing

C.H.I operates a fully equipped, precision-controlled manufacturing facility featuring:

  • 5-axis and 4-axis CNC machining centres
  • Mori Seiki twin-spindle, twin-turret CNC lathe
  • Serdi valve-seat machining equipment
  • Faro Arm CMM digitising system
  • SuperFlow SF-600 flow bench
  • DTS4000G engine dynamometer in a temperature-controlled cell

What We Stand For

Engineering | Innovation | Performance

At C.H.I, our mission is simple:

To engineer the highest-performing, most precisely manufactured cylinder heads and manifolds available in Australia and beyond.

We are committed to:

  • Continuous innovation
  • Superior craftsmanship
  • Australian manufacturing
  • Race-proven results
  • Customer-focused technical support

Why Choose C.H.I

  • Over 50 years of engine machining and motorsport experience
  • Australian-made cylinder heads and manifolds
  • Race-proven performance with Engine Masters success
  • Precision CNC manufacturing and quality control
  • Trusted by professional engine builders worldwide

Contact Us

Looking for high-performance cylinder heads or manifolds for your V8 engine? 
Our team is ready to assist with technical advice, product recommendations, and custom solutions.

Contact Us