General Motors has announced yet another financial commitment to modernize its American production facilities, with transmission and engine manufacturing the recipient of its latest investment. The company said on Wednesday that it would spend another $830 million on several of its US-based factories, including two plants in Michigan and one plant in Ohio, bolstering GM's spending in those regions. In the past year alone, the automaker has committed to more than $6 billion in its factories, including $4 billion to onshore manufacturing of the Chevrolet Blazer and expand production of the popular Chevy Tahoe and GMC Yukon full-size SUVs. Internal Combustion Is The Name Of The Game The $830 million investment announced this week will go to a variety of GM manufacturing properties that support full-size SUV and truck production, including for the Silverado 1500 and Tahoe. The largest portion will head to Michigan's Romulus Propulsion Systems, which will receive $300 million to increase production capacity. The nearby Saginaw Metal Casting Operations will get $150 million to increase head casting volume to support the General Motors Gen 6 small-block V8. Finally, Ohio's Toledo Propulsion Systems will get a tidy 40 mil to improve plant flexibility and capacity. ChevroletRomulus and Toledo both manufacture the 10-speed automatic transmission that shows up in the automaker's trucks and SUVs, including the aforementioned Tahoe, Yukon, and their Cadillac Escalade cousin, as well as Chevrolet and GMC full-size trucks. Meanwhile, Saginaw Metal Casting is the facility that's been earmarked to produce engine blocks for GM's Gen 6 V8, the 6.7-liter mill that's been confirmed for the Corvette and highly suspected in 6.6-liter form for the next-generation Chevy Silverado 1500 and GMC Sierra 1500. Lots Of American Investments Last year, the General made big waves when it announced a massive $4 billion investment in US-based manufacturing and jobs, including bringing production of the 2027 Chevrolet Blazer to its factory in Spring Hill, Tennessee. Currently, Spring Hill builds the Cadillac Lyriq and Vistiq EVs, as well as the gas-powered XT5 crossover with which the Blazer shares a platform. Once production of the Chevy SUV begins in Tennessee, its current factory in Mexico will build local-market examples rather than exports to the US. GM Manufacturing Commitments In The Last Year $888 million (May 2025) Tonawanda Propulsion, New York Renovations and retooling to produce Gen 6 small-block V8 $4 billion (June 2025) Spring Hill Assembly, Tennessee Adding Chevrolet Blazer production to replace Mexican imports Orion Assembly, Michigan Retooling for additional Chevrolet Silverado 1500, GMC Sierra 1500, and Cadillac Escalade production Fairfax Assembly, Kansas Adding production of the internal-combustion Chevrolet Equinox to replace Mexican imports Preparation for future production of low-cost Chevrolet EVs $550 million (November 2025) Romulus Propulsion, Michigan Initial investment to expand 10-speed auto production Parma Metal Center, Ohio Additional sheet metal stamping to support Michigan, Tennessee, and Kansas production expansion A big chunk of change will also go to Orion Township, Michigan, where a currently offline factory will be retooled to manufacture the Silverado, Sierra, and Escalade, expanding production capacity of the latter and increasing American manufacturing of the former two. Currently, GM manufactures its full-size pickups at another factory in Michigan as well as one in Indiana, and adding truck building to Orion will help it wean off supplementary production at facilities in Canada and Mexico. GM is also adding production of its new-generation V8 to factories in Ontario, a move that should help the company stay in the good graces of America's neighbor to the north. Since last year, Canada has taken aim at a number of US companies for scaling back production and reneging on contracts.Source: General Motors
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