Chrysler SOHC V6 engine explained

SOHC V6
Manufacturer:Chrysler Corporation (1993–1998)
DaimlerChrysler AG (1998–2007)
Chrysler LLC (2007–2009)
Chrysler Group LLC (2009–2010)
Production:1993–2010
Predecessor:Chrysler 3.3 engine
Successor:Chrysler Pentastar engine
Configuration:Naturally aspirated 60° V6
Block:Cast iron (1993–1997)
Aluminum (1998–2010)
Head:Aluminum
Valvetrain:Single overhead camshaft 4 valves per cyl.
Timing:Timing belt
Compression:9.5:1, 9.9:1, 10.0:1, 10.1:1, 10.3:1, 10.4:1
Fuelsystem:Sequential MPFI
Fueltype:Gasoline
Oilsystem:Wet sump
Coolingsystem:Water-cooled
Power:NaNhp
Torque:NaNlbft

The single overhead cam V6 engine introduced in 1993. 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 The SOHC V6 has been replaced by the Chrysler Pentastar engine.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 developed.

History

1993–97 3.5 L engines are a non-interference design, in which 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.

3.5

The 3518cc engine was a version of the 3.3 with a larger bore of 962NaN2 and featured overhead cams. The 3.5L version has an intake arrangement with two separate manifolds and throttle bodies connected with a crossover valve. This provides better low and midrange torque. Another difference with the 3.5 as opposed to the 3.3 is that it has a timing belt, not a timing chain. The water pump is driven by the timing belt on the 3.5, whereas on the 3.3, the accessory belt drives it.

At its debut in 1993, this engine produced 2140NaN0 and 2210NaN0 with an iron block and aluminium cylinder heads. The 3.5 L engine was redone entirely of aluminum in 1999 as the EGG high output, producing NaN0NaN0 at 6500 rpm with 2500NaN0 of torque at 4000 rpm. Output from 2002 to 2004 for the standard output EGJ is 2340NaN0 at 6000 rpm with 2410NaN0 of torque at 4400 rpm. Also, for 2002–2004, the EGK 3.5 L Special was built exclusively for the 300M Special, producing 2550NaN0 and 2580NaN0. The EGK was discontinued in 2004.[1]

The 3.5 L variant was discontinued in 2010, and was replaced by the newer Pentastar 3.6 V6.

3.2

The 3.2 L version debuted with the updated LH platform in 1998. It was an SOHC 4-valve design displacing 3231cc with a smaller 922NaN2 bore but the same 812NaN2 stroke as the 3.5. It produced 2250NaN0 and 2250NaN0 and met the TLEV emissions standard. It was discontinued at the end of the 2001 model year.

Applications:

4.0

The 3.5 L engine was expanded to 3952cc for the 2007 Dodge Nitro and Chrysler Pacifica. Like its family members, this is a SOHC engine and was built in Trenton, Michigan. DaimlerChrysler reportedly spent $155 million to expand the Trenton plant to manufacture this engine.[2]

Output of 4.0 engine:

Applications:

DOHC

See main article: Chrysler LH engine. The DOHC 2.7 L Chrysler LH engine is based on this same design, though the bore, stroke, and production site are different.

See also

References

  1. Web site: Chrysler - Dodge 3.2, and 3.5, and 3.8 liter engines. www.allpar.com. 2020-05-28.
  2. Web site: Chrysler 4.0 liter V6 engines: Minivans, Pacifica, Nitro. www.allpar.com. 2020-05-28.