1962 TVR Grantura: Cylinder Head Porting

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By Craig Ranson

We are currently in the process of porting the cylinder heads of our 1962 TVR Grantura. Porting refers to the process of modifying the intake and exhaust ports to improve the quality and quantity of the air flow. Porting the heads provides the finely detailed attention required to bring the engine to the highest level of efficiency. More than any other single factor, the porting process is responsible for the high power output of modern engines.

This process can be applied to a standard racing engine to optimise its power output as well as to a production engine to turn it into a racing engine, to enhance its power output for daily use or to alter its power output characteristics to suit a particular application.

Our very own Ady has been porting heads for many many years and is now somewhat of an expert in the field.

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