DETROIT – On Monday, General Motors announced plans to invest $70 million into its Tonawanda, New York engine plant and more than $6 million into its Parma, Ohio metal stamping plant. These two manufacturing-related investments support continued strong customer and dealer demand for GM’s Chevrolet Silverado and GMC Sierra pickups. ”GM continues to invest to strengthen our core business and respond to growing customer demand for our full-size pickups,” said Phil Kienle, GM vice president of North America Manufacturing and Labor Relations. In addition, the plant builds the 6.6L small-block gas V-8 engine for the Chevrolet Silverado HD and GMC Sierra HD pickups. The Tonawanda engine plant is home to approximately 1,300 employees.