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This is also common for motorcycles, and such head/cylinder components are referred to as barrels. Some engines, particularly medium- and large-capacity diesel engines built for industrial, marine, power generation, and heavy traction purposes (large trucks, locomotives, heavy equipment, etc.) have individual cylinder heads for each cylinder ...
The Polyspheric or Poly engines were V8 engines produced by Chrysler from 1955 to 1958 as lower-cost alternatives to the Hemi engines. [1] These engines were based on the Hemi engines, using the same blocks and crankshaft parts, but completely different cylinder heads, pushrods, exhaust manifolds and pistons.
The cylinder head cover is made from a light weight plastic-resin material. The exhaust manifold is integrated to the cylinder head together with the catalytic converter and oxygen sensor to save even more weight as well as helping the engine to warm up quicker, reducing total exhaust emissions. There was an overall saving of 10 kg (22 lb).
The Hyundai D engine is a family of 3-cylinder and 4-cylinder diesel engines produced by Hyundai Motor Company under license from VM Motori. [1]The D-line of engines feature cast iron block and aluminum cylinder head, with belt driven single overhead camshafts operating four valves per cylinder.
The 1976 to 1977 the engine received a new cylinder-head design, incorporating hydraulic lifters to replace the taper-screw valve adjusters, improved coolant pathways, longer-life valve-stem seals, a redesigned water pump and thermostat, and a five-year, 60,000-mile (97,000 km) engine warranty. The engine's name was changed to Dura-Built 140.
Cylinder bore: 3.74 in (95 mm) Piston stroke: 4.76 in (121 mm) Cylinder block material: cast iron: Cylinder head material: cast iron: Valvetrain: DOHC, 4 valves per cylinder: Compression ratio: 5.7:1: Combustion; Supercharger: Duesenberg centrifugal (optional from 1932) Fuel system: Single updraft Schleber carburetor: Fuel type: gasoline ...
The engine block is greatly modified as the camshaft is moved to the cylinder head and the chain drive is replaced by belt drive. The cylinder head is completely new, adopting an overhead camshaft driven by a toothed timing belt. The 1,390 cc (1.4 L) "Energy engine" and 1,390 cc (1.4 L) "Cléon-Fonte" have the same stroke and bore.
A redesigned cylinder head and manifold for improved air flow. Variable exhaust valve timing (the LW2 engine only had variable intake valve timing) Specially-developed fuel injectors. New pistons with pentroof-style centre-domes and valve eyelets for a higher compression ratio of 12.2:1 (compared to 10.2:1 for the dual fuel engine).