Chrysler SOHC V6 engine

Chrysler SOHC V6
Chrysler 3.5 L SOHC
Overview
Manufacturer	Chrysler Corporation (1993-1998) DaimlerChrysler AG (1998–2007) Chrysler LLC (2007–2009) Chrysler Group LLC (2009-2010)
Production	1993-2010
Combustion chamber
Configuration	60° V6
Displacement	3,231 cc (197.2 cu in) 3,518 cc (214.7 cu in) 3,952 cc (241.2 cu in)
Cylinder bore	92.0 mm (3.62 in) 96.0 mm (3.78 in)
Piston stroke	81.0 mm (3.19 in) 91.0 mm (3.58 in)
Cylinder block alloy	Cast iron (1993-1997) Aluminum (1998-2010)
Cylinder head alloy	Aluminum
Valvetrain	Single overhead camshaft
Compression ratio	9.5:1 9.9:1 10.0:1 10.1:1 10.3:1 10.4:1
Combustion
Fuel system	Sequential Multiple-Port Fuel Injection
Fuel type	Gasoline
Oil system	Wet sump
Cooling system	Water-cooled
Chronology
Predecessor	Chrysler 3.3 engine
Successor	Chrysler Pentastar engine

The single overhead cam V6 introduced in 1993 was a major advancement for Chrysler. It was derived from Chrysler's first homegrown front-wheel drive V6, the Chrysler 3.3 engine. The SOHC V6 has been replaced by the Chrysler Pentastar engine.

There are three major variants of this basic design: the 3.5 L, 3.2 L, and 4.0 L. Additionally, a 2.7 L DOHC version was derived.

A single overhead camshaft was a major addition to the lineup for 1993. Introduced with the 3.5 L engine, this basic design spawned 3.2 L and new 4.0 L variants as well as the DOHC 2.7 L Chrysler LH engine. All but the 2.7 and high-output 3.5 were produced at Trenton Engine in Trenton, Michigan.

The SOHC engine used an engine block that was very similar to its pushrod ancestors. But the front of the block was modified for the camshaft drive, and the heads were entirely different. One major change was that the SOHC engine was originally designed for the longitudinal placement of the Chrysler LH platform, rather than the transverse engine design of the K-cars and minivans. Since the bottom end was the same, the engine could be produced on the same assembly line in Trenton as the pushrod engine.

1993–97 3.5 L engines are a non-interference engine meaning that the valves will not collide with the pistons in the event of a timing belt failure. The 1998–2001 3.2 L, the 1998–2010 3.5 L, and the 2007–2011 4.0 L engines are interference designs.