CNC engineered gas flowed cylinder heads

Rover 1.8 VVC




Click on any image to enlarge


A kit car and competition car favourite. Powerful and durable and light weight. Fitted to many Rover cars , MGF, and the Lotus Elise. Also used in Westfield and Caterham cars and many kit cars. Its light weight and punchy power is greatly improved by this gas flowed head.

Our flow stats (and the graph below) show a very impressive improvement in gas flow for this head. Inlet port flow is increased by a massive 22.1% at max valve lift and is substantially higher across the lift range. (See yellow area of the graph). There’s a huge improvement across the valve lift range.

Exhaust port flow is also imprved by a massive 32% at max lift (See blue area) . This is a very healthy improvement in flow and will be reflected in the power of the engine and how the car drives. With suitable fuleing, camshaft and exhaust modifications, the true potential of this excellent engine is fully realised with this head. Capable of up to 213 BHP at 6800 RPM.

Got a hot Elise or kit car ?- make it hotter with one of our heads. The best bolt-on modification you can buy for this engine.

Cost for this head is £750.00 + vat on an exchange basis. (£350 exchange). A ‘taping’ service is also available for this head at an additional cost of £100 which will give the final hand finish to the ports and provide a further 1% flow.

Note : flow diagrams show flow against specific valve openings at 0.050 inch valve openings at 10″ pressure. Therefore actual flow volume increase is measured as the area under the graph (indicated in yellow for inlet and blue for exhaust). Standard valve sizes are used on our heads unless specified as a big valve version. Tests shown here are carried out on a flow bench on a bare head without filters. Therefore the difference between a standard engine with standard inlet ducting and filters will be larger than shown here.



See below for the full reports as generated by our gas flow bench and Port Flow Analyzer software. Click on the images for full size image:




Call us on +44 (0)161 483 4810 or email on SALES @ CNCHEADS.CO.UK . Check out our FREQUENTLY ASKED QUESTIONS PAGE for more information.

Custom made CamshaftsWith all of our gas flowed heads we also provide a custom made camshaft service. These camshafts are designed to optimise the flow characteristics of our heads. They can also be specifically designed to deliver the power characteristcs you require for your specific application.Your existing camshaft will work with our heads, however, if you want to get the most from one of these heads or you have a particular power characteristc you are looking for, we recommend that you consider our custom camshafts.Price £500 + vat


We are happy to discuss and advise on any aspect of modifying your engine with one of our heads to achieve the results we predict above. We can also supply the best quality gaskets, camshaft, valves, valve springs and head bolts to go with your new cylinder head. We also specialise in electronic engine management, carb and fuel injection , turbo and supercharger systems. We build race engines too. Built and tested on our own 1000bhp Engine Dyno. We can also fit your head to your engine if required and test your vehicle on our rolling road.

What ever your requirements, race, track day or fast road, we have a full range of the latest and best performance products and techniques. Our competition results year on year prove we have the expertise to make your car competitive at what ever class you chose to compete.