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...[cylinder head]] of four [[Poppet valve|valve]] engine.<br />( [[Nissan VQ engine]] )]] In [[automotive engineering]], an engine is referred to as '''multi-valve''' (or '''multivalve''') when each cylinde

===Engine capacity/displacement=== ===Engine output===

...beginning, the formula was largely based on pre-war regulations defined by engine capacity. The regulation expected to bring a new balance between [[supercha ...For instance the team won two championships using only nine pre-war built engine blocks.