Hot Heads, Head Work On Harley Davidson Engines Can Yield Good Profits
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.
Navistar 7.3L Diesel Labor Costing Study
The 7.3L IDI diesel engine originally produced by Navistar from 1989-
Technology to run a more profitable business
Technology to run a more profitable business is here, it