Automotive Technology
Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Chapter 12, Problem 5MC

Multiple valve engines tend to be more efficient than two-valve-per-cylinder engines because they.

  1. allow for increased port areas

  • have smaller valves
  • c. provide less restriction to the airflow

    d. all of the above

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