Saginaw Metal Casting Operations
automobile engine foundry plant in Saginaw, Michigan
Saginaw Metal Casting Operations is an automobile engine foundry plant in Saginaw, Michigan. Opened under GM management in 1919, the factory produces engine blocks and cylinder heads for General Motors vehicles. The factory currently occupies 1.9 million square feet on 490 acres. Historically in September 1927 it was known as the Chevrolet Grey Iron Foundry. In the past when it was called GM-Saginaw Product Company (SPC) a cloverleaf casting symbol mark was cast onto the iron component.
The location has been the primary source of engine block and cylinder heads for all of GM's engines, to include Oldsmobile, Pontiac, Cadillac, Chevrolet, Buick and GMC for most of the 20th century. The address is 1629 N Washington Ave. Saginaw, MI 48601, and is located on the Saginaw River. Camshafts, connecting rods and other internal engine components are manufactured at Bay City Powertrain. Casting operations were also provided by Massena Castings Plant and Defiance Foundry.
“Saginaw Metal Casting Operations” enters the record as automobile engine foundry plant in Saginaw, Michigan. Crown Archives preserves that source wording while asking what Saginaw, Metal and Casting can confirm, complicate or overturn.
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Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated May 8, 2026. The linked authority identifier is Q106725973. Authority coordinates are 43.453, -83.916. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1919, 1927 and 1629.
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This entry incorporates text from “Saginaw Metal Casting Operations” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.