Multi-valve

A multi-valve or multivalve engine is one where each cylinder has more than two valves (an intake, and an exhaust). A multi-valve engine has better breathing, and with more smaller valves (having less mass in motion) may be able to operate at higher revolutions per minute (RPM) than a two-valve engine, delivering more power.^[1]^[2]

^ Kevin Clemens. "An Echo of the Past: The history and evolution of twin-cam engines (European Car, February, 2009)". Archived from the original on 2014-01-11. Retrieved 2011-12-23.
^ Dan McCosh. "Auto Tech 88: 4-valves (Popular Science, May 1988, pp. 24, 37-40)". Archived from the original on 2013-06-02. Retrieved 2011-12-23.

[KevinClemensDOHC-1] Kevin Clemens. "An Echo of the Past: The history and evolution of twin-cam engines (European Car, February, 2009)". Archived from the original on 2014-01-11. Retrieved 2011-12-23.

[DanMcCosh4valves-2] Dan McCosh. "Auto Tech 88: 4-valves (Popular Science, May 1988, pp. 24, 37-40)". Archived from the original on 2013-06-02. Retrieved 2011-12-23.

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