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Engine Valves

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Engine valves are typically made from steel alloys. Most heads use two valves per cylinder, but some high performance designs use four (two intake, two exhaust) valves to utilize more of the surface area in the combustion chamber as a flow area. Since a combustion engine is only as powerful as its ability to flow a gaseous mixture in and exhaust out, increased flow means greater power potential out of a given engine.

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