GM to invest more than $150 million in Saginaw Metal Casting Plant

General Motors announced plans to invest more than $150 million in its Saginaw Metal Casting Operations to support the production of the sixth generation of GM's V-8 engine blocks and heads used in full-size pickup trucks.

This new commitment builds on the approximately $5.5 billion in investments GM made in 2025, underscoring GM's support for U.S. manufacturing, while securing the future of this facility and its employees. In January 2023, the company announced a half-billion-dollar investment in its Flint Engine plant for production of the sixth generation of V-8 engines. The investment in SMCO will support this work.

"This significant investment of over $150 million is a clear commitment to the plant and our people," said John Lancaster, plant director. "By enabling the production of next-generation engine blocks and cylinder heads for full-size trucks, the plant is well-positioned for the future. This not only secures existing jobs but also strengthens the local economy, and ensures the plant continues to be an integral part of the automotive supply chain."

The investment includes new equipment and tooling for SMCO.

SMCO will continue to produce the fifth generation of GM's V-8 engine blocks while the plant prepares for the next generation's start of production in 2027. SMCO is the third-oldest GM facility in the United States and has more than 300 employees across three shifts.

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