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4.2 L Essex V6 in a 1998 F-150. The largest displacement version of the Essex V6 appeared in the 1997 model year as a replacement for the Ford 300 straight six in the F-150. This engine kept the 3.8 L's bore, but featured a stroke lengthened to 95 mm (3.74 in), bringing its displacement up to 4,195 cc (256.0 cu in).
1982–2008 Canadian Essex V6—90° V6, 3.8/3.9/4.2 L models; 1986–1987 Ford-Cosworth GBA engine—120° V6, 1.5 L (Formula One engine) 1986–2007 Vulcan V6—60° pushrod V6 3.0 L, originally designed for the Taurus; 1989–1995 SHO V6 3.0/3.2 L DOHC V6; 1994–2012 Mondeo V6 aluminum 60° DOHC. 1994–2002 Duratec 25—2.5 L
It was replaced by the 4.2 L Essex V6 for 1997 in the redesigned F-150, as well as the E-150 and E-250. The 300 was mated to the Ford C6, E4OD, and AOD automatic transmissions, and the Mazda M5OD, ZF S5-42 and S5-47, 5-speed manual transmissions, and the Borg-Warner T18, Tremec RTS, and New Process NP435 4-speed manual transmissions.
The firing order has been changed from that shared by all previous Modular V8s (1-3-7-2-6-5-4-8) to that of the Ford Flathead V8 (1-5-4-8-6-3-7-2). [17] Compression ratio is 11.0:1, and despite having port fuel injection (as opposed to direct injection ) the engine can still be run on 87 octane gasoline.
The 351W had larger main bearing caps, thicker and longer connecting rods, and a distinct firing order (1-3-7-2-6-5-4-8 versus the usual 1-5-4-2-6-3-7-8, a means to move the unacceptable "noise" of the consecutively-firing adjacent front cylinders to the sturdier rear part of the engine block all while reducing excessive main bearing load ...
Later, the Cologne V6 largely replaced the Essex V6 for British-market vehicles. These engines were also used in the United States, especially in compact trucks. During its production run the Cologne V6 was offered in displacements of 1.8, 2.0, 2.3, 2.4, 2.6, 2.8, 2.9, and 4.0 litres. [1]
For the 2005 model year, Ford's 4.2 L Essex V6—mated to either a manual transmission or a four-speed automatic—became available on regular cab 4×2 models and automatic headlamps became available. This generation of F-150 is the last Ford vehicle with a gasoline pushrod V6.
For 1982, a 110hp 3.8L V6 was introduced as the standard engine for the F-100 (the 4.9L six remained available on the F-150 and F-250), becoming the first V6 engine offered in the F-Series (and the smallest-displacement engine offered since 1953). [8] For 1983, several changes were made to the engine line.
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