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News of  June 20, 2001


GM Powertrain Celebrates New Aluminum Business At Defiance Plant

2002 GM Technology: 4.22 L -Vortec I6

Defiance, Ohio - The General Motors Powertrain Defiance Plant celebrated its "first pour" of aluminum engine castings. This event marks the successful start-up of its new lost-foam casting operations. A $160 million investment brought the lost foam aluminum casting technology to Defiance for the first time and retained about 300 jobs. The two million square-foot facility now produces cast aluminum blocks and heads for the new Vortec inline 4- and inline 5-cylinder engines, in addition to continuing its production of cast iron engine parts.

"GM is a valued member of Ohio's business community and I applaud the company's strong commitment to our state," Governor Bob Taft said. "I am pleased to be here today to help celebrate this new technology that preserved approximately 300 jobs in northwest Ohio."

These cooperative relationships together with the hard work and dedication of the employees made it possible for us to bring new technology and new business into the plant. We look forward to continuing to build upon our record in safety, quality, responsiveness, productivity and cost."

The new lost foam casting technology used by GM represents some of the newest casting technology available. Lost foam offers many advantages over conventional casting processes including increased dimensional accuracy, the ability to create complex shapes and reduction of machining costs.

Vortec powered TrailBlazer

Photos: GM

The Vortec I4 and I5 engines are derived from the Vortec 4200 I6 engine, which was recently introduced on the 2002 GMC Envoy, Chevrolet TrailBlazer and Oldsmobile Bravada. The Vortec inline engine family shares approximately 75 percent common parts. The I4 and I5 engines have many of the same outstanding features as the I6, including dual overhead camshafts and four-valves-per-cylinder technology. Additional engine features include a high compression ratio of 10:1, electronic throttle control, variable valve timing and coil-on-plug ignition. Multec II fuel injectors, an advanced Powertrain Control Module, direct-mount accessories and easy-maintenance are also part of the package. The Vortec inline architecture was designed from the beginning to allow for three different engine configurations, which is part of the overall strategy of creating flexible architectures to meet global customer needs. The clean, elegant design provides customers with outstanding smoothness, power and fuel efficiency.

(June 15, 2001)

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