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General Motors announced on April 29, 2026 that it will invest C$691 million (about US$505 million) to upgrade its St.
Catharines Propulsion Plant in Ontario to produce the companyās sixth-generation Vā8 engines for fullāsize trucks and SUVs.
The work will fund new machinery, tooling and facility renovations; equipment has already begun arriving.
St.
Catharines will join Tonawanda (Buffalo, N.Y.) and Flint, Mich., as the three North American plants building the nextāgen smallāblock Vā8s, which are slated for the 2027 Chevy Silverado, GMC Sierra and future fullāsize SUVs.
The announcement comes amid ongoing sector turbulence in Canada after U.S. tariffs and recent GM restructuring: Oshawa cuts and layoffs earlier in 2026, and the idling of the CAMI/Ingersoll plant following the BrightDrop electric van shutdown in 2025.
GM says the investment cements St.
Catharinesā role in its core vehicle programs and aims to meet continued demand for high-volume pickup trucks across North America.







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