Hot Heads, Head Work On Harley Davidson Engines Can Yield Good Profits - Engine Builder Magazine
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Hot Heads, Head Work On Harley Davidson Engines Can Yield Good Profits

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Porting these heads and increasing airflow and valve sizes does the trick

For decades, Harley Davidson (HD) owners have sought increased power and performance for their machines. We have found over the years that porting the cylinder head and increasing the valve sizes and airflow not only adds horsepower but also increases torque and driveability.

HD heads are easy to port but it

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