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Intended For The Next-Gen Chevrolet Silverado HD And GMC Sierra HD Trucks

2024 GMC Sierra Duramax Engine Updated

General Motors has officially earmarked $920 million USD for its Duramax diesel engine operations (DMAX) at its Brookville, Ohio manufacturing plant, securing another next-gen internal combustion engine for its future pickup trucks. In this case, the Chevrolet Silverado HD and GMC Sierra HD. The news actually took place last week, yet you may not have heard about it, as GM seemed to keep it low-key. Maybe because there’s a Silverado EV drive happening right now.

Per The Detroit News, GM’s latest DMAX investment will support a 1.1-million square-foot expansion of a Brookville facility, while the Moraine facility, some 30 minutes away, winds down. The expansion will more than quadruple the size of the Brookville facility, which was opened in 2021. GM employees at the Moraine plant will eventually be relocated to the Brookville plant, but specifics were scarce, ahead of UAW labor talks in September.

2024 Chevrolet Silverado 3500 HD Dually High Country Pickup Truck
2024 Chevrolet Silverado 3500HD LTZ towing boat at sunset

The DMAX plant in Moraine, Ohio was previously a joint venture with Isuzu Diesel Services of America Inc. Isuzu divested from the venture as of May 2022.

With this latest Duramax diesel investment, General Motors has now invested some $32.6 billion in its United States manufacturing and parts distribution facilities since 2013. Plus, GM invested another $280 million at its Oshawa Assembly Plant in Ontario for the next generation of full-size light duty pickups. Oshawa is the only GM plant that builds the Chevrolet Silverado 1500 and Silverado HD under one roof.

GMC Sierra HD AT4X 2500 Duramax 2024 2025 2026 Pickup Truck Diesel V8

For those keeping tabs, which we are, General Motors has been spending money like it’s going away on refreshing its money printers. These include V8 gas engines, body-on-frame trucks, SUVs, and Duramax diesel engines. The DMAX investment follows a $500+ million USD investment into the GM Arlington Assembly facility in Texas that builds the Chevrolet Tahoe and Suburban, Cadillac Escalade and GMC Yukon, and a $632 million USD investment for the Fort Wayne Assembly truck plant in Indiana that builds the Chevrolet Silverado 1500 and GMC Sierra 1500. Prior to that, the GM Flint Assembly plant was earmarked for a $1 billion upgrade, which builds the GMC Sierra HD and Chevrolet Silverado HD. And at the beginning of 2023, The General announced a next-generation Small Block V8 engine to the tune of $854 million. These investments total $3.906 billion USD.

While that’s all a lot of money, it pales in comparison to the investments to make Factory Zero ($2 billion USD), new battery plants ($2.6 billion in Lansing, $2 billion in Spring Hill), and renovating the Orion Assembly Plant (another $4 billion). In fact, GM is outspending its recent ICE truck and SUV investments with its future EV investments to the tune of nearly 3:1.

GMC Hummer EV Pickup Truck Edition 1 Muscle Cars And Trucks
Image copyright Steven Pham, Muscle Cars & Trucks

Written by Manoli Katakis

Muscle Cars & Trucks was founded by Manoli Katakis - an automotive media veteran that has been covering the latest car news since 2009. His journalism has uncovered dozens of major product changes, updates, plans, and cancellations long before automakers were ready to make things official.

Some highlights over the years of his reporting include the uncovering of the Zora trademark before anybody else reported on the coming of a mid-engine Corvette, as well as the dead-accurate reporting of the coming of the Chevrolet Colorado ZR2, two years before it hit the market, and even before the debut of the concept vehicle. This type of reporting has immediately continued here, with reports of the original seventh-generation Camaro plans being shelved, as well as what's in store for the Chevrolet Silverado.

Some of his work can be found on massive automotive media outlets, such as Motor1. He also has been a guest on the 910AM Radio Station with Detroit News auto critic Henry Payne, as well as the enthusiast-oriented Camaro Show podcast.

Over the years, Manoli has interviewed various automotive industry titans, leaders, and people that make things happen otherwise. These include figureheads such as GM CEO Mary Barra, GM President Mark Reuss, automotive aftermarket icon Ken Lingenfelter, Dodge firebrand Tim Kuniskis, along with various chief engineers of vehicles such as the Ford F-150 & Mustang, Chevrolet Camaro & Corvette, and many more.

At MC&T, Manoli is taking his journalism expertise, deeply planted sources, driving abilities, and automotive industry knowledge to new levels, covering more vehicles and brands than ever before. This is the place where you will continue to read groundbreaking stories about American performance vehicles, pickup trucks, and sport utility vehicles. Here is where you’ll also read insights and quotes from various automotive subject matter experts on the latest relevant products, as well as some of the latest official news from their manufacturers.

Fun facts: he also once beat Corvette Racing driver Tommy Milner in an autocross with a Chevrolet Bolt EV. The biggest vehicle he’s ever driven is a John Deere mining truck. Besides a go-kart, the smallest vehicle he’s driven has been a Hyundai i10. He’s also spent time in the cockpit of various American performance vehicle icons, including the fifth-generation Chevrolet Camaro Z/28, Dodge Challenger Demon, and Ford Mustang GT350R. He has reviewed dozens of trucks, SUVs, and performance vehicles over the years.

One of his favorite new vehicles on the market today happens to be the Chevrolet Colorado ZR2 Bison. He is also a card carrying member of the Sports Car Club of America, and regularly participates in Detroit Region autocross events.

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