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A crossflow head gives better performance than a Reverse-flow cylinder head (though not as good as a uniflow), but the popular explanation put forward for this — that the gases do not have to change direction and hence are moved into and out of the cylinder more efficiently — is a simplification since there is no continuous flow because of valve opening and closing.
A 1967 redesign gave it a cross-flow type cylinder head, hence the Kent's alternative name Ford Crossflow. It went on to power the smaller-engined versions of the Ford Cortina and Ford Capri , the first and second editions of the European Escort as well as the North American Ford Pinto (1971, 1972 and 1973 only).
The H series flathead six cylinder engine. The first-generation Ford six-cylinder engines were all flatheads.They were the G- and H-series engines of 226 cu in (3.7 L) used in cars and trucks and the M-series of 254 cu in (4.2 L) used in larger Ford trucks and for industrial applications.
The reverse-flow head still enjoys some popularity among enthusiasts including Leyland Mini, Chrysler Slant-6, Holden and Ford Inline 6 fans. In fact some Australian Ford enthusiasts consider the 250 2V reverse-flow head to be superior to the Honda designed [citation needed] cross-flow head that replaced it.
The first design was the Model 30 which had 4 exhaust ports and one intake port all on the right side of the head. The Model 31 had two intakes on the right and four exhaust on the left. The Model 35C, first known as the "Improved Rajo Valve-in-Head" and later as the Model C had two intakes and three exhausts on the right.
A hemispherical head ("hemi-head") gives an efficient combustion chamber with minimal heat loss to the head, and allows for two large valves.However, a hemi-head usually allows no more than two valves per cylinder due to the difficulty in arranging the valve gear for four valves at diverging angles, and these large valves are necessarily heavier than those in a multi-valve engine of similar ...
Ford Crossflow, the 1967 version of the Ford Kent engine; Crossflow cylinder head; Cross-flow fan, a type of mechanical fan; Cross-flow filtration, a filtration technique; Cross-flow turbine, a type of water (or air) turbine
Cross flow scavenging with a deflector piston. Crossflow cylinder heads are used by most modern 4-stroke engines, whereby the intake ports are located on one side of the combustion chamber and the exhaust ports are on the other side.
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