Ford CVH-PTE engine

Ford CVH engine
Ford Fiesta MK3 engine
Overview
Manufacturer	Ford
Production	1980-2004
Combustion chamber
Configuration	inline-four
Displacement	1,117 cc (68.2 cu in) 1,296 cc (79.1 cu in) 1,391 cc (84.9 cu in) 1,598 cc (97.5 cu in) 1,769 cc (108.0 cu in) 1,859 cc (113.4 cu in) 1,988 cc (121.3 cu in)
Cylinder bore	77.2 mm (3.04 in) 80.0 mm (3.15 in) 82.0 mm (3.23 in) 84.8 mm (3.34 in)
Piston stroke	64.5 mm (2.54 in) 74.3 mm (2.93 in) 79.5 mm (3.13 in) 88.0 mm (3.46 in)
Cylinder block alloy	Cast iron
Cylinder head alloy	Aluminum
Valvetrain	SOHC
Combustion
Fuel type	Gasoline
Oil system	Wet sump
Cooling system	Water-cooled
Chronology
Successor	Ford Zeta engine

The CVH (Compound Valve angle Hemispherical combustion chamber) engine was introduced by Ford in 1980 in the third generation European Ford Escort and for the 1981 North American Escort. It was later used in the Ford Sierra as well as the second generation Ford Fiesta and from 1983 it was used in the Ford Orion. Engines were built in the Dearborn Engine Plant for the North American market, and in Ford's then-new engine plant in Bridgend in Wales for the European market.

The engine was originally conceived in 1974 and had a single overhead cam. Its valves were mounted at a compound angle in hemispherical combustion chambers, although some versions altered the combustion chamber shape to increase swirl. It also featured hydraulic valve lifters, a first for a European Ford engine. The engine was given different names throughout its production. From 1991 to 1996 in the Ford Escort, it was "1.9L SEFI"; and from 1997 to 2002, it was "Split Port Induction 2000". From 2000 to 2004 in the Ford Focus, it was "Split Port".

Despite its considerable shortcomings in terms of Noise, vibration, and harshness (NVH) and its intolerance of poor or neglected servicing, the CVH was regarded as being a very easy engine to tune, with many of its key components being considerably over-engineered. It wasn't long before the engine started receiving attention from the aftermarket tuning industry, and the 1.6 L version quickly became a stalwart of the tuning scene in the 1980s and 1990s with some significant increases in power output (over 200 bhp (150 kW)) being extracted from the turbocharged variants. The naturally aspirated 1.6 L was a popular choice for the kit car industry, where it could be relatively easily and cheaply tweaked to around 130 bhp (97 kW).

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Wikipedia