Ultimate road cylinder head

摘要

The A-series engine has always suffered massively with a poorly-designed head, which greatly restricts the breathing potential of the engine. As such, simple modifications to improve airflow are relatively easy and, with a little work, you can get handsome rewards. Coupling a good cylinder head with the right valve train, i.e. camshaft and rocker combination, is the secret to get your preferred performance characteristics from your engine. If you want a high-mileage cruiser, a track-day weapon or an all-out competition car, the key to success is getting these items correct.