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Swirl Generation <Br/ >Cylinder Wall <br/ >Good swirl generation is an important factor toward low-speed torque. some heads, such as those for small-block Chevys, have port forms that are conducive to swirl. With about 70 percent of the airflow emerging from the "A" half of the valve, the charge has a very strong tendency to turn in the direction of the ghosted arrows.
Engine Masters Challenge - The Power To Win!

 Swirl Generation
Cylinder Wall
Good swirl generation is an important factor toward low-speed torque. some heads, such as those for small-block Chevys, have port forms that are conducive to swirl. With about 70 percent of the airflow emerging from the "A" half of the valve, the charge has a very strong tendency to turn in the direction of the ghosted arrows.  View Related Article

 

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