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Alfa Romeo 156 Alfa Romeo 16v

Audi 1.8 Turbo Audi 1.8 Turbo Big Valve

Mini & Cooper S M3 2.5l DTM (E30) V8 M5 V8

VTS 16v

Tipo Turbo Punto

Crossflow (Alloy Big Valve) Crossflow Formula Ford Pinto (Big Valve) Essex V6 Cosworth Cosworth (Big Valve) Cosworth (Big Valve) N/A CVH CVH Turbo Puma 1.7 Duratec 1.8 litre Duratec 2.0l & 2.3l Focus RS Focus ST 2.5T ST150 ST170 ST225 Zetec

LS1 and LS2

Lotus VHPD Lotus TC

MX5

Evo 5,6,7,8,9 Evo 10

Skyline R32 and R34 Std Valve Skyline R32 and R34 Big Valve

Clio 172 and 182 2.0litre

K-Series VVC 16v

2500cc Impreza WRX Sti

MR2 Turbo

VX220 VX220 Turbo CN1 2.0 8v XE 16v XE 16 (Big Valve) VXR Astra

VW Super 1.4 & 1.6 16v VW 1.8 16v VW 1.8 Turbo (Std valve) VW 1.8 Turbo (Big valve) VW Golf 8v (Std Valve) VW Golf 8v (Big valve) VW G60 8v (Std valve) VW G60 8v (Big valve) VW R32 VW VR6 VW Tdi 8 valve

Welcome to the CNC heads website

Our mission is simple : To offer the best performing gas flowed cylinder head using state of the art technology and our race engine expertise to design, replicate and manufacture the very best head for your race or road car.

All our gas flowed cylinder heads are precisely manufactured for maximum efficiency and performance. We invest extensively in developing the very best possible head. We measure the flow precisely and test power output on our own Engine Dynometer. We are proud of our results and publish the flow figures for each head. Using our scanning technology and CNC engineering machines we are able to replicate our high performance optimum design. This technology enables us to predict the potential horsepower gains made possible by fitting the head to your engine.

We manufacture to incredible accuracy using latest CNC technology which ensures each head produced is identical and each cylinder in the head performs the same as the others in the engine. The major benefit to you is performance, cost and quality. Properly gas flowing and modifying a head is very time consuming and hence very expensive. We optimise one head type once then scan and replicate the design exactly. The results are identical to the original modified head but the cost is very much less.

This site will show our products and our technology in detail allowing you to judge the quality of our products. Our heads are suitable for fast road, track day or racing. Racing is in our blood and our race car success is a testament to our thorough development and design philosophy. We are now able to offer high performance gas flowed cylinder heads to the public at a very much reduced price.

Call us on +44 (0)161 483 4810 or you can speak to the owner , Ric Wood on +44 (0)7770 951115 anytime or email on sales @ cncheads.co.uk .

We are happy to discuss and advise on any aspect of using our cylinder heads.

We also supply heads to engine builders. We can replicate or improve any head and multiple orders of heads are no problem for us. All trade enquiries are welcome.

Check out what Fast Ford Magazine say about our heads.

Cylinder head scanning using Renishaw Cyclone digitizer

The latest technology used to replicate expert gas flowed heads

Why should you fit a gas flowed cylinder head ?

See our guide to gas flowing a head and what it can do for your engine.

We use the latest gas flow technology.

Learn more about the art of gas flowing.

Our gas flowed cylinder heads are suitable for fast road cars, track day cars or race cars. We provide full details of flow and expected horsepower. Horse power ratings are provided based on good engine condition and other inlet and exhaust criteria. See our data sheets on individual cylinder heads for more details.

Fitting a gas flowed head to your engine is the next stage in improving performance after exhaust and fueling/ignition changes. Your engine will never reach its full potential with a standard head which will restrict flow of fuel and air in to the engine and restrict its output. Are you ready for the next stage ?

We are always happy to discuss the details of fitting one of our heads. All heads are available on an exchange basis and are excellent value for money. If you prefer, we can fit your cylinder head for you and carry out any modification right up to full race engine build and test on our 1000 BHP engine dynometer.