General Motors will add a pushrod 3.9-liter V-6 engine to its lineup in the 2006 model year, the automaker said on Friday. The engine will be built at the automaker's Tonawanda, N.Y., engine plant.
The new V-6 and a 3.5-liter version using the same architecture will be equipped with GM's fuel-saving cylinder-deactivation technology that shuts down cylinders based on vehicle speed and engine load. GM says the system delivers an 8 percent gain in fuel economy.
GM is investing $300 million in the plant for new machinery and production lines. The upgrades are expected to be completed by the fourth quarter of 2004. The Tonawanda plant produces GM's 2.2-liter Ecotech four-cylinder; 3.1- and 3.4-liter V-6s; 8.1-liter V-8; 2.8-liter four-cylinder; and 3.5-liter five-cylinder engines. Employment is 3,340.