Editing Ford CVH engine (section)

==History and Details==
The engine was originally conceived in 1974, and was a key plank of the "Erika" world car programme which spawned both the third-generation European Escort and the 1981 North American car of the same name.  Although the European and North American Escorts ended up being substantially different from each other in execution, the CVH engine was the one major common part shared between them.  The CVH largely replaced the overhead valve [[Ford Kent engine|Kent ("Crossflow") engine]] in Ford of Europe's portfolio, although the 'short block' Valencia version of the Kent remained in production for many decades (ironically outliving the CVH by two years) - positioned below the CVH as an entry level engine in the smallest capacity Fiesta and Escort models.

The CVH is a cam-in-head design, a type of overhead camshaft engine with a single camshaft mounted low in the head, operating two valves per cylinder via rocker arms.<ref name="ford-enghist"/> As indicated by the name, the valves in original versions are mounted at a compound angle in order to allow for a  [[hemispherical combustion chamber]], but without the need for dual camshafts (or an elaborate rocker system) which a "hemi" engine normally requires. The later "lean burn" versions of the engine launched in 1986 had reshaped combustion chambers to improve swirl, and were strictly speaking no longer hemi-headed at all. The CVH features [[hydraulic valve lifter]]s, a first for a European Ford engine. In North America the engine was sold under different names, being called the "1.9L SEFI" from 1991 to 1996 in that market's Ford Escort, the "Split Port Induction 2000" or SPI2000 from 1997 to 2002, while from 2000 to 2004 it was simply the "Split Port" when offered in the Ford Focus.<ref name="sae-spi"/>

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CVH Kopf2.jpg|1.6 CVH cylinder head with valves, followers and rockers
CVH Kopf1.jpg|1.6 CVH cylinder head
CVH Kopf3.jpg|1.6 CVH cylinder head, combustion chambers
</gallery>