Flathead engine

（重定向自Side valve）

Engine block of the Ford flathead V8 engine showing the location of the valve ports (the holes above the large cylinder bores). These blocks were the basis of the original

A flathead engine (aka sidevalve engine (SV), flathead, or flatty) is an internal combustion engine with valves placed in the engine block beside the piston, instead of in the cylinder head, as in an overhead valve engine. As the cylinder cross-section has the shape of an upside-down L, other names such as L-block or L-head are also common.

单词	Side valve
释义	Side valve 英语百科 Flathead engine （重定向自Side valve） A flathead engine (aka sidevalve engine (SV), flathead, or flatty) is an internal combustion engine with valves placed in the engine block beside the piston, instead of in the cylinder head, as in an overhead valve engine. As the cylinder cross-section has the shape of an upside-down L, other names such as L-block or L-head are also common.
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