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| Ford Engine Head Specs |
By:
Robert Monie |
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A head, properly known as a cylinder head, is a part of the engine that houses valvetrains and the intake and exhaust manifolds. Its main function is to seal off the cylinders to ensure that there are no leaks and to manage the valves involved in the combustion process of the engine. Ford uses several types of cylinder heads that include the dual overhead camshaft (DOHC), the single overhead camshaft (SOHC), and the overhead valvetrain (OHV). These cylinder heads have different formats and layouts and they are used on Ford's latest models.
1.6L Duratec DOHC Inline-Four Engine
The 1.6L Duratec inline-four engine is equipped on the 2011 Ford Fiesta. This engine utilizes a DOHC cylinder head. A DOHC configuration is a type of cylinder head that utilizes two camshafts: one installed with the intake and one with the exhaust. This type of cylinder head is used on most cars today.
The 1.6L Duratec's cylinder head has four cylinders equipped with four valves per cylinder: two intake valves and two exhaust valves. The cylinder head is made of an aluminum alloy. The engine has a bore and stroke of 3.10 by 3.20 inches and it has a compression ratio of 11.0:1.
4.0L SOHC V6 Engine
The 2010 Ford Mustang's base engine is a 4.0L SOHC V6 engine. This engine is different from the inline-four. Because of the V6 engine's configuration, it is equipped with two separate cylinder heads. Each cylinder head utilizes an SOHC configuration, where the intake and exhaust valves are managed by a single camshaft. The advantage of this configuration is that the timing of the intake and exhaust valves is perfect, especially during high rpm.
The Ford Mustang's base engine is configured with six cylinders. Each cylinder head consists of three cylinder covers together with 2 valves on each cylinder: one intake valve and one exhaust valve. This engine's bore and stroke is 3.95 by 3.32 inches and its compression ratio is 9.7:1. It also comes standard with a die cast aluminum cylinder head.
Powerstroke 6.4L OHV V8 Engine
Ford uses diesel engines on their most powerful vehicles like the 2010 Ford F350 Super Duty pickup truck. A 6.4L OHV Powerstroke engine is offered as one of its optional engines. This engine utilizes a cylinder head that is largely different from an OHC configuration.
An OHV configuration features the camshaft within the engine itself and not in the cylinder head. It also uses pushrods in order to manage the intake and exhaust valves in the cylinder head. Among the three configurations, the OHV is the simplest engine and requires fewer components. Because of this, it has proven to be reliable and more durable than engines with an OHC configuration.
The 6.4L Ford Powerstroke engine comes standard with 32 valves on a V8 configuration. That means that each cylinder has four valves: two intake valves and two exhaust valves. This engine's bore and stroke is 3.86 by 4.13 inches and its compression ratio is 16.7:1.
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