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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 .
Engine bay of a 1993 Jeep Grand Cherokee with 4.0 L The 5 millionth Jeep 4.0 engine produced on the "Greenlee Block Line" dated June 15, 2001 The 242 cu in (4.0 L) engine was developed by AMC in just 26 months using many off-the-shelf components while featuring, among others, additional strength, improved combustion chamber, port setup, and cam ...
The Nissan H series of automobile engines is an evolution of the Nissan "R" engine which was based on the 1.5-liter, three-main bearing "G" engine used in the 1960s. Both inline-four and inline-six versions were produced. It is a pushrod OHV design with iron block, early models with an iron head, later models with aluminum head.
Development continued on the engine over three years, with Packard assigning model numbers PT-103 and PT-104 to military engine designations XJ41 serial number V-500001 and XJ41 serial number V-500003. A design study for an engine suitable for high acceleration, such as a catapult launched take-off, was assigned model number PT-106 in February ...
Retrieved from "https://en.wikipedia.org/w/index.php?title=Pushrod_engine&oldid=654517059"This page was last edited on 1 April 2015, at 17:05 (UTC) (UTC)
Also pushrod engines almost always make less power and torque from a given displacement, compare just about any engine you can find: BMW M3 - 81.875 ft-lb/l, LS7 - 67 ft-lb/l. Also compare the output of the OHC Ford engines to the GM pushrod engines, the Fords have higher torque output for a given displacement.
The factory opened in 1957 as the site of production of Ford's MEL V8 for the Edsel car.. It subsequently produced six-cylinder engines (the 170/200/250 family), the 385-series 370/429/460 big-block V8 engines, and the 2.3/2.5 L HSC/HSO pushrod four-cylinder engines for the Ford Tempo, Mercury Topaz, and Ford Taurus.
This engine used a provision in the rules intended for stock block pushrod engines such as the V-6 Buick engines that allowed an extra 650 cm³ and 10 inches (4.9 psi/33.8 kPa) of boost. This extra power (1,024 horsepower , [ 15 ] which was up a 150-200 hp advantage over the conventional V-8s.