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3 clusters · 29 sources · 11 days · First seen · Last updated

General Motors engine development and diesel expansion

Overview

General Motors has announced significant updates to its internal combustion engine lineup, specifically targeting the pickup truck market. Initially, the company unveiled a sixth-generation small-block V8 engine family for the 2027 Chevrolet Silverado 1500 and GMC Sierra 1500. This lineup includes a 5.7-liter L76 and a 6.6-liter L78, the latter being described as the “most powerful naturally aspirated V8 in its class.” GM is also emphasizing diesel efficiency, highlighting a 3.0-liter diesel engine capable of highway ranges exceeding 900 miles.

Following these announcements, GM expanded its diesel offerings with the introduction of the 8.3-liter V8 turbodiesel engine, nicknamed the ‘Mongoose’ or ‘Mungos’. This engine is intended for the heavy-duty segment, specifically the Chevrolet Silverado HD and GMC Sierra HD, and serves as a larger replacement for previous 6.6-liter models to compete with heavy-duty diesel competitors. The ‘Mongoose’ is viewed as a direct competitive response to Ford’s ‘Scorpion’ engine.

Technical specifications for the 8.3-liter Duramax V8 indicate it is expected to deliver between 555 and 563 horsepower and approximately 1,668 to 1,700 Nm of torque when paired with a ten-speed Allison automatic transmission. Engineering upgrades include a graphite cast iron block, forged crankshafts, connecting rods, steel pistons, and an improved two-stage water-to-air cooling system. These enhancements aim to increase towing capacities, with potential ranges reaching up to 17,270 kg (approximately 17.2 tonnes) with a gooseneck hitch. In the United States, the 2027 Silverado HD lineup will feature various trim levels, ranging from the Work Truck (WT) starting at $38,600 to the premium High Country model priced at $71,700.

Entities

General Motors · Chevrolet · GMC · Acura · EPA

Timeline

  1. [BUSINESS] 4 sources
    General Motors unveils new 8.3L V8 diesel for 2027 heavy-duty pickups

    General Motors announced a new 8.3L V8 turbo-diesel engine for the 2027 Chevrolet Silverado HD and GMC Sierra HD, offering up to 563 HP and 1,668 Nm of torque for heavy-duty towing.

  2. [BUSINESS] 11 sources
    General Motors unveils new V8 engines and tech for 2027 trucks

    General Motors is upgrading its 2027 truck lineup with a new 8.3-liter V8 turbodiesel ‘Mongoose’ engine, enhanced Small Block V8s for light-duty models, and advanced electric steering technology.

  3. [BUSINESS] 16 sources
    General Motors unveils new V8 engines for 2027 Silverado and Sierra

    General Motors is launching sixth-generation V8 engines and enhanced diesel powertrains for its 2027 Silverado and Sierra trucks, prioritizing combustion and diesel efficiency over hybrid alternatives.

Sources

arynews.tv · atarde.com.br · autoblog.nl · autoevolution.com · autofreak.com · autoinsider.nl · automotiva.com.ar · automotiveaddicts.com · autoplus.fr · autoprove.it · autorepublika.com · carnewscafe.com · congnghe.vn · dieselarmy.com · ecoloauto.com · gqjapan.jp · jalopnik.com · laopinion.com · mesazhi.com · motor.es · motor1.com · newatlas.com · noticias.autocosmos.com.ar · roadandtrack.com · sondakika.com · tecnoandroid.it · theautopian.com · thedrive.com · topgear.bg

This summary has been updated 5 times: see revision history