About us

Cylinder Head Specialists (CHS) is your ultimate destination for high-performance parts and unrivaled expertise in the world of motorsport. Established by Dave Rosewarne in 1982, CHS began as a specialised Cylinder Head machine shop and has since evolved into a powerhouse of quality automotive components.

Dave Rosewarne’s profound interest in the motorsport industry led to the birth of CHS, driven by a commitment to excellence in cylinder head machining. However, recognizing the challenges of sourcing the right parts for CHS Heads and Engines, the visionary founder took a significant step in 1992. This marked the inception of Christchurch Speed, a dynamic entity dedicated to importing race engine and transmission parts from leading manufacturers worldwide. Today, CHS proudly stands as a major distributor for a myriad of esteemed suppliers.

We have an extensive inventory featuring a wide array of premium brands. We take pride in stocking renowned names such as Manley, Aeroflow, Barnes, AFR, Jesel, Crower, Holley, XRP, ARP, Winters, Mcleods, Stange, Speedflow, Dart, Aviaid, CP Carillo, Callies, Comp Cams, World Products, and many more. This diverse range ensures that you have access to the best-in-class parts, meticulously selected to meet the demands of motorsport enthusiasts.

What sets CHS apart is not just our commitment to quality but our comprehensive approach to the motorsport experience. Our world-class machine shop and dyno facility, coupled with the extensive parts inventory all under one roof, make CHS your go-to destination for all your automotive needs.

Dave and CHS’s dedicated staff are not just experts; they are enthusiasts actively involved in motorsport, classic, and street cars. This hands-on experience guarantees that the advice and information you receive are rooted in a genuine passion for the industry.

Explore the world of CHS – where quality parts and unmatched expertise come together for an unparalleled motorsport experience.