General Motors has announced a $691 million investment in its St. Catharines Propulsion Plant to bolster the production of its latest V-8 engines for full-sized trucks and SUVs. This upgrade will position St. Catharines as the third facility to manufacture the sixth generation of the engine, joining Buffalo, N.Y., and Flint, Mich., in production.
The decision to invest in the plant comes amidst concerns in Canada’s automotive industry due to U.S. government-imposed tariffs. GM Canada president Jack Uppal expressed confidence in St. Catharines’ future role in the company’s key vehicle programs.
While GM has also been enhancing its Oshawa plant that manufactures pickup trucks, there was a shift from three shifts to two at the end of January. The CAMI assembly plant in Ingersoll, Ont., ceased production of its electric delivery van last year, leaving it dormant.
Trevor Longpre, Unifor Local 199 plant chair for the GM powertrain plant, praised the investment as a significant endorsement of the plant and its workforce following a tumultuous year in the auto sector. He highlighted the plant’s production of high-quality components for popular vehicles as a positive indicator for the future.
Longpre emphasized that this investment solidifies General Motors St. Catharines’ long-term presence in Canada. While the exact impact on the current workforce of nearly 500 active employees and approximately 150 on layoff remains uncertain, Longpre viewed the news positively, especially considering the previous uncertainties caused by tariffs imposed by U.S. President Donald Trump on Canada’s automotive sector.
In a sector facing widespread uncertainty, Longpre described the investment as a beacon of hope and the first positive development since the imposition of tariffs, offering encouragement to both the workforce and the community.

