DETROIT -- The Chrysler group is spending nearly $300 million to overhaul its engine plant in Trenton, Mich.
The automaker said it will spend $155 million on the suburban Detroit plant to build a new 4.0-liter V-6.
It would not say which vehicles will get the engine.
The Chrysler group also is spending $142 million to improve the production line that builds 3.8-liter V-6 engines. Those engines are used in minivans.
The plant also builds 2.0-liter, four-cylinder engines used in the Dodge Neon and 3.3-liter V-6 engines used in minivans.
Production of a re-engineered version of the 2.0-liter engine will move to the Global Engine Manufacturing Alliance plant in Dundee, Mich., spokesman Ed Saenz said.
Dundee, which will start production in September, also will build1.8-liter and 2.4-liter four-cylinder engines. Engines from the plant were developed jointly by DaimlerChrysler AG, Hyundai Motor Co. and Mitsubishi Motors Corp. The 3.3-liter V-6 will remain at Trenton.
The number of employees and production output at the Trenton plant will not change significantly, the Chrysler group says.
The automaker said the total cost of the upgrades was trimmed by reusing some machinery from its 3.5-liter line, last used in 2003.
The changes at the Trenton plant mean that all engines will be cold-tested for noise, vibration and harshness, as well as oil leaks. The plant also will hot-test the first 2,000 engines produced, then move to a random audit system.