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An overhead valve engine, abbreviated (OHV) and sometimes called a pushrod engine, is a piston engine whose valves are located in the cylinder head above the combustion chamber. This contrasts with flathead (or "sidevalve") engines , where the valves were located below the combustion chamber in the engine block .
Engines with multiple banks are shorter than straight engines of the same size, and will often have better engine balance characteristics, resulting in reduced engine vibration and potentially higher maximum engine speeds. Most engines with four or less cylinders use a straight engine layout, and most engines with eight cylinders or more use a ...
Originally developed in 1959 for the Ford Anglia, it is an in-line four-cylinder overhead valve (OHV) pushrod engine with a cast-iron cylinder head and block. The Kent family can be divided into three basic sub-families; the original pre-Crossflow Kent, the Crossflow (the most prolific of all versions of the Kent), and the transverse mounted ...
Cutaway of a dual overhead camshaft engine 1969 AMC V8 overhead valve engine. The rocker cover has been removed, so the pushrods, rocker arms, valve springs, and valves are visible. A valvetrain is a mechanical system that controls the operation of the intake and exhaust valves in an internal combustion engine. [1]
Overhead camshaft engine; Overhead valve engine; S. Sleeve valve; T. T-head engine; V. Variable valve timing This page was last edited on 12 January 2011, at 00:41 ...
Higher compression, larger intake valves, a Holley four-barrel, improved intake and exhaust, and a more aggressive camshaft, the next year increased it all the way to 205 hp (153 kW). [3] The engine was unchanged in 1954 except for the vacuum advance mechanism. [3] These engines used hydraulic valve lifters while Ford truck engines used solid.
Volvo B18 engine. The B18 is a 1.8 L overhead valve (OHV) engine with two valves per cylinder. It has five main bearings, two more than the B16. With a bore of 84.14 mm (3.31 in) and stroke of 80 mm (3.15 in), the B18 displaces 1,778 cc (108.5 cu in). The cylinders are on 105 / 108 mm (4.13 / 4.25 in) split bore centers, where the spacing ...
Overhead valve → – 1: The subject is a type of engine, not a type of valve. 2. The subject does not cover all overhead valve engines, just those with valves operated by pushrods. 3. The title "OHV engine" is more in line with "Flathead engine" and "IOE engine". Sincerely, SamBlob 00:18, 26 February 2015 (UTC)